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天津康师傅调度系统
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TJKSF_WCS/调度分布式系统_天津康师傅顶益项目/Snap7Client/snap7.net.cs

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/*=============================================================================|
| PROJECT SNAP7 1.4.0 |
|==============================================================================|
| Copyright (C) 2013, 2014, 2015 Davide Nardella |
| All rights reserved. |
|==============================================================================|
| SNAP7 is free software: you can redistribute it and/or modify |
| it under the terms of the Lesser GNU General Public License as published by |
| the Free Software Foundation, either version 3 of the License, or |
| (at your option) any later version. |
| |
| It means that you can distribute your commercial software linked with |
| SNAP7 without the requirement to distribute the source code of your |
| application and without the requirement that your application be itself |
| distributed under LGPL. |
| |
| SNAP7 is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| Lesser GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License and a |
| copy of Lesser GNU General Public License along with Snap7. |
| If not, see http://www.gnu.org/licenses/ |
|==============================================================================|
| |
| C# Interface classes. |
| |
|=============================================================================*/
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
namespace Snap7
{
public class S7Consts
{
#if __MonoCS__ // Assuming that we are using Unix release of Mono (otherwise modify it)
public const string Snap7LibName = "libsnap7.so";
#else
public const string Snap7LibName = "snap7.dll";
#endif
//------------------------------------------------------------------------------
// PARAMS LIST
//------------------------------------------------------------------------------
public static readonly Int32 p_u16_LocalPort = 1;
public static readonly Int32 p_u16_RemotePort = 2;
public static readonly Int32 p_i32_PingTimeout = 3;
public static readonly Int32 p_i32_SendTimeout = 4;
public static readonly Int32 p_i32_RecvTimeout = 5;
public static readonly Int32 p_i32_WorkInterval = 6;
public static readonly Int32 p_u16_SrcRef = 7;
public static readonly Int32 p_u16_DstRef = 8;
public static readonly Int32 p_u16_SrcTSap = 9;
public static readonly Int32 p_i32_PDURequest = 10;
public static readonly Int32 p_i32_MaxClients = 11;
public static readonly Int32 p_i32_BSendTimeout = 12;
public static readonly Int32 p_i32_BRecvTimeout = 13;
public static readonly Int32 p_u32_RecoveryTime = 14;
public static readonly Int32 p_u32_KeepAliveTime = 15;
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct S7Tag
{
public Int32 Area;
public Int32 DBNumber;
public Int32 Start;
public Int32 Elements;
public Int32 WordLen;
}
}
public static class S7
{
#region [Help Functions]
private static Int64 bias = 621355968000000000; // "decimicros" between 0001-01-01 00:00:00 and 1970-01-01 00:00:00
private static int BCDtoByte(byte B)
{
return ((B >> 4) * 10) + (B & 0x0F);
}
private static byte ByteToBCD(int Value)
{
return (byte)(((Value / 10) << 4) | (Value % 10));
}
private static byte[] CopyFrom(byte[] Buffer, int Pos, int Size)
{
byte[] Result=new byte[Size];
Array.Copy(Buffer, Pos, Result, 0, Size);
return Result;
}
#region Get/Set the bit at Pos.Bit
public static bool GetBitAt(byte[] Buffer, int Pos, int Bit)
{
byte[] Mask = {0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
if (Bit < 0) Bit = 0;
if (Bit > 7) Bit = 7;
return (Buffer[Pos] & Mask[Bit]) != 0;
}
public static void SetBitAt(ref byte[] Buffer, int Pos, int Bit, bool Value)
{
byte[] Mask = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 };
if (Bit < 0) Bit = 0;
if (Bit > 7) Bit = 7;
if (Value)
Buffer[Pos] = (byte)(Buffer[Pos] | Mask[Bit]);
else
Buffer[Pos] = (byte)(Buffer[Pos] & ~Mask[Bit]);
}
#endregion
#region Get/Set 8 bit signed value (S7 SInt) -128..127
public static int GetSIntAt(byte[] Buffer, int Pos)
{
int Value = Buffer[Pos];
if (Value < 128)
return Value;
else
return (int) (Value - 256);
}
public static void SetSIntAt(byte[] Buffer, int Pos, int Value)
{
if (Value < -128) Value = -128;
if (Value > 127) Value = 127;
Buffer[Pos] = (byte)Value;
}
#endregion
#region Get/Set 16 bit signed value (S7 int) -32768..32767
public static int GetIntAt(byte[] Buffer, int Pos)
{
return (short)((Buffer[Pos] << 8) | Buffer[Pos + 1]);
}
public static void SetIntAt(byte[] Buffer, int Pos, Int16 Value)
{
Buffer[Pos] = (byte)(Value >> 8);
Buffer[Pos + 1] = (byte)(Value & 0x00FF);
}
#endregion
#region Get/Set 32 bit signed value (S7 DInt) -2147483648..2147483647
public static int GetDIntAt(byte[] Buffer, int Pos)
{
int Result;
Result = Buffer[Pos]; Result <<= 8;
Result += Buffer[Pos + 1]; Result <<= 8;
Result += Buffer[Pos + 2]; Result <<= 8;
Result += Buffer[Pos + 3];
return Result;
}
public static void SetDIntAt(byte[] Buffer, int Pos, int Value)
{
Buffer[Pos + 3] = (byte)(Value & 0xFF);
Buffer[Pos + 2] = (byte)((Value >> 8) & 0xFF);
Buffer[Pos + 1] = (byte)((Value >> 16) & 0xFF);
Buffer[Pos] = (byte)((Value >> 24) & 0xFF);
}
#endregion
#region Get/Set 64 bit signed value (S7 LInt) -9223372036854775808..9223372036854775807
public static Int64 GetLIntAt(byte[] Buffer, int Pos)
{
Int64 Result;
Result = Buffer[Pos]; Result <<= 8;
Result += Buffer[Pos + 1]; Result <<= 8;
Result += Buffer[Pos + 2]; Result <<= 8;
Result += Buffer[Pos + 3]; Result <<= 8;
Result += Buffer[Pos + 4]; Result <<= 8;
Result += Buffer[Pos + 5]; Result <<= 8;
Result += Buffer[Pos + 6]; Result <<= 8;
Result += Buffer[Pos + 7];
return Result;
}
public static void SetLIntAt(byte[] Buffer, int Pos, Int64 Value)
{
Buffer[Pos + 7] = (byte)(Value & 0xFF);
Buffer[Pos + 6] = (byte)((Value >> 8) & 0xFF);
Buffer[Pos + 5] = (byte)((Value >> 16) & 0xFF);
Buffer[Pos + 4] = (byte)((Value >> 24) & 0xFF);
Buffer[Pos + 3] = (byte)((Value >> 32) & 0xFF);
Buffer[Pos + 2] = (byte)((Value >> 40) & 0xFF);
Buffer[Pos + 1] = (byte)((Value >> 48) & 0xFF);
Buffer[Pos] = (byte)((Value >> 56) & 0xFF);
}
#endregion
#region Get/Set 8 bit unsigned value (S7 USInt) 0..255
public static byte GetUSIntAt(byte[] Buffer, int Pos)
{
return Buffer[Pos];
}
public static void SetUSIntAt(byte[] Buffer, int Pos, byte Value)
{
Buffer[Pos] = Value;
}
#endregion
#region Get/Set 16 bit unsigned value (S7 UInt) 0..65535
public static UInt16 GetUIntAt(byte[] Buffer, int Pos)
{
return (UInt16)((Buffer[Pos] << 8) | Buffer[Pos + 1]);
}
public static void SetUIntAt(byte[] Buffer, int Pos, UInt16 Value)
{
Buffer[Pos] = (byte)(Value >> 8);
Buffer[Pos + 1] = (byte)(Value & 0x00FF);
}
#endregion
#region Get/Set 32 bit unsigned value (S7 UDInt) 0..4294967296
public static UInt32 GetUDIntAt(byte[] Buffer, int Pos)
{
UInt32 Result;
Result = Buffer[Pos]; Result <<= 8;
Result |= Buffer[Pos + 1]; Result <<= 8;
Result |= Buffer[Pos + 2]; Result <<= 8;
Result |= Buffer[Pos + 3];
return Result;
}
public static void SetUDIntAt(byte[] Buffer, int Pos, UInt32 Value)
{
Buffer[Pos + 3] = (byte)(Value & 0xFF);
Buffer[Pos + 2] = (byte)((Value >> 8) & 0xFF);
Buffer[Pos + 1] = (byte)((Value >> 16) & 0xFF);
Buffer[Pos] = (byte)((Value >> 24) & 0xFF);
}
#endregion
#region Get/Set 64 bit unsigned value (S7 ULint) 0..18446744073709551616
public static UInt64 GetULIntAt(byte[] Buffer, int Pos)
{
UInt64 Result;
Result = Buffer[Pos]; Result <<= 8;
Result |= Buffer[Pos + 1]; Result <<= 8;
Result |= Buffer[Pos + 2]; Result <<= 8;
Result |= Buffer[Pos + 3]; Result <<= 8;
Result |= Buffer[Pos + 4]; Result <<= 8;
Result |= Buffer[Pos + 5]; Result <<= 8;
Result |= Buffer[Pos + 6]; Result <<= 8;
Result |= Buffer[Pos + 7];
return Result;
}
public static void SetULintAt(byte[] Buffer, int Pos, UInt64 Value)
{
Buffer[Pos + 7] = (byte)(Value & 0xFF);
Buffer[Pos + 6] = (byte)((Value >> 8) & 0xFF);
Buffer[Pos + 5] = (byte)((Value >> 16) & 0xFF);
Buffer[Pos + 4] = (byte)((Value >> 24) & 0xFF);
Buffer[Pos + 3] = (byte)((Value >> 32) & 0xFF);
Buffer[Pos + 2] = (byte)((Value >> 40) & 0xFF);
Buffer[Pos + 1] = (byte)((Value >> 48) & 0xFF);
Buffer[Pos] = (byte)((Value >> 56) & 0xFF);
}
#endregion
#region Get/Set 8 bit word (S7 Byte) 16#00..16#FF
public static byte GetByteAt(byte[] Buffer, int Pos)
{
return Buffer[Pos];
}
public static void SetByteAt(byte[] Buffer, int Pos, byte Value)
{
Buffer[Pos] = Value;
}
#endregion
#region Get/Set 16 bit word (S7 Word) 16#0000..16#FFFF
public static UInt16 GetWordAt(byte[] Buffer, int Pos)
{
return GetUIntAt(Buffer,Pos);
}
public static void SetWordAt(byte[] Buffer, int Pos, UInt16 Value)
{
SetUIntAt(Buffer, Pos, Value);
}
#endregion
#region Get/Set 32 bit word (S7 DWord) 16#00000000..16#FFFFFFFF
public static UInt32 GetDWordAt(byte[] Buffer, int Pos)
{
return GetUDIntAt(Buffer, Pos);
}
public static void SetDWordAt(byte[] Buffer, int Pos, UInt32 Value)
{
SetUDIntAt(Buffer, Pos, Value);
}
#endregion
#region Get/Set 64 bit word (S7 LWord) 16#0000000000000000..16#FFFFFFFFFFFFFFFF
public static UInt64 GetLWordAt(byte[] Buffer, int Pos)
{
return GetULIntAt(Buffer, Pos);
}
public static void SetLWordAt(byte[] Buffer, int Pos, UInt64 Value)
{
SetULintAt(Buffer, Pos, Value);
}
#endregion
#region Get/Set 32 bit floating point number (S7 Real) (Range of Single)
public static Single GetRealAt(byte[] Buffer, int Pos)
{
UInt32 Value = GetUDIntAt(Buffer, Pos);
byte[] bytes = BitConverter.GetBytes(Value);
return BitConverter.ToSingle(bytes, 0);
}
public static void SetRealAt(byte[] Buffer, int Pos, Single Value)
{
byte[] FloatArray = BitConverter.GetBytes(Value);
Buffer[Pos] = FloatArray[3];
Buffer[Pos + 1] = FloatArray[2];
Buffer[Pos + 2] = FloatArray[1];
Buffer[Pos + 3] = FloatArray[0];
}
#endregion
#region Get/Set 64 bit floating point number (S7 LReal) (Range of Double)
public static Double GetLRealAt(byte[] Buffer, int Pos)
{
UInt64 Value = GetULIntAt(Buffer, Pos);
byte[] bytes = BitConverter.GetBytes(Value);
return BitConverter.ToDouble(bytes, 0);
}
public static void SetLRealAt(byte[] Buffer, int Pos, Double Value)
{
byte[] FloatArray = BitConverter.GetBytes(Value);
Buffer[Pos] = FloatArray[7];
Buffer[Pos + 1] = FloatArray[6];
Buffer[Pos + 2] = FloatArray[5];
Buffer[Pos + 3] = FloatArray[4];
Buffer[Pos + 4] = FloatArray[3];
Buffer[Pos + 5] = FloatArray[2];
Buffer[Pos + 6] = FloatArray[1];
Buffer[Pos + 7] = FloatArray[0];
}
#endregion
#region Get/Set DateTime (S7 DATE_AND_TIME)
public static DateTime GetDateTimeAt(byte[] Buffer, int Pos)
{
int Year, Month, Day, Hour, Min, Sec, MSec;
Year = BCDtoByte(Buffer[Pos]);
if (Year < 90)
Year += 2000;
else
Year += 1900;
Month = BCDtoByte(Buffer[Pos + 1]);
Day = BCDtoByte(Buffer[Pos + 2]);
Hour = BCDtoByte(Buffer[Pos + 3]);
Min = BCDtoByte(Buffer[Pos + 4]);
Sec = BCDtoByte(Buffer[Pos + 5]);
MSec = (BCDtoByte(Buffer[Pos + 6]) * 10) + (BCDtoByte(Buffer[Pos + 7]) / 10);
try
{
return new DateTime(Year, Month, Day, Hour, Min, Sec, MSec);
}
catch (System.ArgumentOutOfRangeException)
{
return new DateTime(0);
}
}
public static void SetDateTimeAt(byte[] Buffer, int Pos, DateTime Value)
{
int Year = Value.Year;
int Month = Value.Month;
int Day = Value.Day;
int Hour = Value.Hour;
int Min = Value.Minute;
int Sec = Value.Second;
int Dow = (int)Value.DayOfWeek + 1;
// MSecH = First two digits of miliseconds
int MsecH = Value.Millisecond / 10;
// MSecL = Last digit of miliseconds
int MsecL = Value.Millisecond % 10;
if (Year > 1999)
Year -= 2000;
Buffer[Pos] = ByteToBCD(Year);
Buffer[Pos + 1] = ByteToBCD(Month);
Buffer[Pos + 2] = ByteToBCD(Day);
Buffer[Pos + 3] = ByteToBCD(Hour);
Buffer[Pos + 4] = ByteToBCD(Min);
Buffer[Pos + 5] = ByteToBCD(Sec);
Buffer[Pos + 6] = ByteToBCD(MsecH);
Buffer[Pos + 7] = ByteToBCD(MsecL * 10 + Dow);
}
#endregion
#region Get/Set DATE (S7 DATE)
public static DateTime GetDateAt(byte[] Buffer, int Pos)
{
try
{
return new DateTime(1990, 1, 1).AddDays(GetIntAt(Buffer, Pos));
}
catch (System.ArgumentOutOfRangeException)
{
return new DateTime(0);
}
}
public static void SetDateAt(byte[] Buffer, int Pos, DateTime Value)
{
SetIntAt(Buffer, Pos, (Int16)(Value - new DateTime(1990, 1, 1)).Days);
}
#endregion
#region Get/Set TOD (S7 TIME_OF_DAY)
public static DateTime GetTODAt(byte[] Buffer, int Pos)
{
try
{
return new DateTime(0).AddMilliseconds(S7.GetDIntAt(Buffer, Pos));
}
catch (System.ArgumentOutOfRangeException)
{
return new DateTime(0);
}
}
public static void SetTODAt(byte[] Buffer, int Pos, DateTime Value)
{
TimeSpan Time = Value.TimeOfDay;
SetDIntAt(Buffer, Pos, (Int32)Math.Round(Time.TotalMilliseconds));
}
#endregion
#region Get/Set LTOD (S7 1500 LONG TIME_OF_DAY)
public static DateTime GetLTODAt(byte[] Buffer, int Pos)
{
// .NET Tick = 100 ns, S71500 Tick = 1 ns
try
{
return new DateTime(Math.Abs(GetLIntAt(Buffer,Pos)/100));
}
catch (System.ArgumentOutOfRangeException)
{
return new DateTime(0);
}
}
public static void SetLTODAt(byte[] Buffer, int Pos, DateTime Value)
{
TimeSpan Time = Value.TimeOfDay;
SetLIntAt(Buffer, Pos, (Int64)Time.Ticks * 100);
}
#endregion
#region GET/SET LDT (S7 1500 Long Date and Time)
public static DateTime GetLDTAt(byte[] Buffer, int Pos)
{
try
{
return new DateTime((GetLIntAt(Buffer, Pos) / 100) + bias);
}
catch (System.ArgumentOutOfRangeException)
{
return new DateTime(0);
}
}
public static void SetLDTAt(byte[] Buffer, int Pos, DateTime Value)
{
SetLIntAt(Buffer, Pos, (Value.Ticks-bias) * 100);
}
#endregion
#region Get/Set DTL (S71200/1500 Date and Time)
// Thanks to Johan Cardoen for GetDTLAt
public static DateTime GetDTLAt(byte[] Buffer, int Pos)
{
int Year, Month, Day, Hour, Min, Sec, MSec;
Year = Buffer[Pos] * 256 + Buffer[Pos + 1];
Month = Buffer[Pos + 2];
Day = Buffer[Pos + 3];
Hour = Buffer[Pos + 5];
Min = Buffer[Pos + 6];
Sec = Buffer[Pos + 7];
MSec = (int)GetUDIntAt(Buffer, Pos + 8)/1000000;
try
{
return new DateTime(Year, Month, Day, Hour, Min, Sec, MSec);
}
catch (System.ArgumentOutOfRangeException)
{
return new DateTime(0);
}
}
public static void SetDTLAt(byte[] Buffer, int Pos, DateTime Value)
{
short Year = (short)Value.Year;
byte Month = (byte)Value.Month;
byte Day = (byte)Value.Day;
byte Hour = (byte)Value.Hour;
byte Min = (byte)Value.Minute;
byte Sec = (byte)Value.Second;
byte Dow = (byte)(Value.DayOfWeek + 1);
Int32 NanoSecs = Value.Millisecond * 1000000;
var bytes_short = BitConverter.GetBytes(Year);
Buffer[Pos] = bytes_short[1];
Buffer[Pos + 1] = bytes_short[0];
Buffer[Pos + 2] = Month;
Buffer[Pos + 3] = Day;
Buffer[Pos + 4] = Dow;
Buffer[Pos + 5] = Hour;
Buffer[Pos + 6] = Min;
Buffer[Pos + 7] = Sec;
SetDIntAt(Buffer, Pos + 8, NanoSecs);
}
#endregion
#region Get/Set String (S7 String)
// Thanks to Pablo Agirre
public static string GetStringAt(byte[] Buffer, int Pos)
{
int size = (int)Buffer[Pos + 1];
return Encoding.ASCII.GetString(Buffer, Pos + 2, size);
}
public static void SetStringAt(byte[] Buffer, int Pos, int MaxLen, string Value)
{
int size = Value.Length;
Buffer[Pos] = (byte)MaxLen;
Buffer[Pos + 1] = (byte)size;
Encoding.ASCII.GetBytes(Value, 0, size, Buffer, Pos + 2);
}
#endregion
#region Get/Set Array of char (S7 ARRAY OF CHARS)
public static string GetCharsAt(byte[] Buffer, int Pos, int Size)
{
return Encoding.ASCII.GetString(Buffer, Pos , Size);
}
public static void SetCharsAt(byte[] Buffer, int Pos, string Value)
{
int MaxLen = Buffer.Length - Pos;
// Truncs the string if there's no room enough
if (MaxLen > Value.Length) MaxLen = Value.Length;
Encoding.ASCII.GetBytes(Value, 0, MaxLen, Buffer, Pos);
}
#endregion
#endregion [Help Functions]
}
public class S7MultiVar
{
#region [MultiRead/Write Helper]
private S7Client FClient;
private GCHandle[] Handles = new GCHandle[S7Client.MaxVars];
private int Count = 0;
private S7Client.S7DataItem[] Items = new S7Client.S7DataItem[S7Client.MaxVars];
public int[] Results = new int[S7Client.MaxVars];
public S7MultiVar(S7Client Client)
{
FClient = Client;
for (int c = 0; c < S7Client.MaxVars; c++)
Results[c] = (int)S7Client.errCliItemNotAvailable;
}
~S7MultiVar()
{
Clear();
}
public bool Add<T>(Int32 Area, Int32 WordLen, Int32 DBNumber, Int32 Start, Int32 Amount, ref T[] Buffer)
{
return Add(Area, WordLen, DBNumber, Start, Amount, ref Buffer, 0);
}
public bool Add<T>(Int32 Area, Int32 WordLen, Int32 DBNumber, Int32 Start, Int32 Amount, ref T[] Buffer, int Offset)
{
if (Count < S7Client.MaxVars)
{
Items[Count].Area = Area;
Items[Count].WordLen = WordLen;
Items[Count].Result = 0;
Items[Count].DBNumber = DBNumber;
Items[Count].Start = Start;
Items[Count].Amount = Amount;
GCHandle handle = GCHandle.Alloc(Buffer, GCHandleType.Pinned);
if (IntPtr.Size == 4)
Items[Count].pData = (IntPtr)(handle.AddrOfPinnedObject().ToInt32() + Offset * Marshal.SizeOf(typeof(T)));
else
Items[Count].pData = (IntPtr)(handle.AddrOfPinnedObject().ToInt64() + Offset * Marshal.SizeOf(typeof(T)));
Handles[Count] = handle;
Count++;
return true;
}
else
return false;
}
public int Read()
{
int FunctionResult;
if (Count > 0)
{
FunctionResult = FClient.ReadMultiVars(Items, Count);
if (FunctionResult == 0)
for (int c = 0; c < S7Client.MaxVars; c++)
Results[c] = Items[c].Result;
return FunctionResult;
}
else
return (int)S7Client.errCliFunctionRefused;
}
public int Write()
{
int FunctionResult;
if (Count > 0)
{
FunctionResult = FClient.WriteMultiVars(Items, Count);
if (FunctionResult == 0)
for (int c = 0; c < S7Client.MaxVars; c++)
Results[c] = Items[c].Result;
return FunctionResult;
}
else
return (int)S7Client.errCliFunctionRefused;
}
public void Clear()
{
for (int c = 0; c < Count; c++)
{
if (Handles[c] != null)
Handles[c].Free();
}
for (int c = 0; c < S7Client.MaxVars; c++)
Results[c] = (int)S7Client.errCliItemNotAvailable;
Count = 0;
}
#endregion
}
public class S7Client
{
#region [Constants, private vars and TypeDefs]
private const int MsgTextLen = 1024;
// Error codes
public static readonly uint errNegotiatingPDU = 0x00100000;
public static readonly uint errCliInvalidParams = 0x00200000;
public static readonly uint errCliJobPending = 0x00300000;
public static readonly uint errCliTooManyItems = 0x00400000;
public static readonly uint errCliInvalidWordLen = 0x00500000;
public static readonly uint errCliPartialDataWritten = 0x00600000;
public static readonly uint errCliSizeOverPDU = 0x00700000;
public static readonly uint errCliInvalidPlcAnswer = 0x00800000;
public static readonly uint errCliAddressOutOfRange = 0x00900000;
public static readonly uint errCliInvalidTransportSize = 0x00A00000;
public static readonly uint errCliWriteDataSizeMismatch = 0x00B00000;
public static readonly uint errCliItemNotAvailable = 0x00C00000;
public static readonly uint errCliInvalidValue = 0x00D00000;
public static readonly uint errCliCannotStartPLC = 0x00E00000;
public static readonly uint errCliAlreadyRun = 0x00F00000;
public static readonly uint errCliCannotStopPLC = 0x01000000;
public static readonly uint errCliCannotCopyRamToRom = 0x01100000;
public static readonly uint errCliCannotCompress = 0x01200000;
public static readonly uint errCliAlreadyStop = 0x01300000;
public static readonly uint errCliFunNotAvailable = 0x01400000;
public static readonly uint errCliUploadSequenceFailed = 0x01500000;
public static readonly uint errCliInvalidDataSizeRecvd = 0x01600000;
public static readonly uint errCliInvalidBlockType = 0x01700000;
public static readonly uint errCliInvalidBlockNumber = 0x01800000;
public static readonly uint errCliInvalidBlockSize = 0x01900000;
public static readonly uint errCliDownloadSequenceFailed = 0x01A00000;
public static readonly uint errCliInsertRefused = 0x01B00000;
public static readonly uint errCliDeleteRefused = 0x01C00000;
public static readonly uint errCliNeedPassword = 0x01D00000;
public static readonly uint errCliInvalidPassword = 0x01E00000;
public static readonly uint errCliNoPasswordToSetOrClear = 0x01F00000;
public static readonly uint errCliJobTimeout = 0x02000000;
public static readonly uint errCliPartialDataRead = 0x02100000;
public static readonly uint errCliBufferTooSmall = 0x02200000;
public static readonly uint errCliFunctionRefused = 0x02300000;
public static readonly uint errCliDestroying = 0x02400000;
public static readonly uint errCliInvalidParamNumber = 0x02500000;
public static readonly uint errCliCannotChangeParam = 0x02600000;
// Area ID
public static readonly byte S7AreaPE = 0x81;
public static readonly byte S7AreaPA = 0x82;
public static readonly byte S7AreaMK = 0x83;
public static readonly byte S7AreaDB = 0x84;
public static readonly byte S7AreaCT = 0x1C;
public static readonly byte S7AreaTM = 0x1D;
// Word Length
public static readonly int S7WLBit = 0x01;
public static readonly int S7WLByte = 0x02;
public static readonly int S7WLWord = 0x04;
public static readonly int S7WLDWord = 0x06;
public static readonly int S7WLReal = 0x08;
public static readonly int S7WLCounter = 0x1C;
public static readonly int S7WLTimer = 0x1D;
// Block type
public static readonly byte Block_OB = 0x38;
public static readonly byte Block_DB = 0x41;
public static readonly byte Block_SDB = 0x42;
public static readonly byte Block_FC = 0x43;
public static readonly byte Block_SFC = 0x44;
public static readonly byte Block_FB = 0x45;
public static readonly byte Block_SFB = 0x46;
// Sub Block Type
public static readonly byte SubBlk_OB = 0x08;
public static readonly byte SubBlk_DB = 0x0A;
public static readonly byte SubBlk_SDB = 0x0B;
public static readonly byte SubBlk_FC = 0x0C;
public static readonly byte SubBlk_SFC = 0x0D;
public static readonly byte SubBlk_FB = 0x0E;
public static readonly byte SubBlk_SFB = 0x0F;
// Block languages
public static readonly byte BlockLangAWL = 0x01;
public static readonly byte BlockLangKOP = 0x02;
public static readonly byte BlockLangFUP = 0x03;
public static readonly byte BlockLangSCL = 0x04;
public static readonly byte BlockLangDB = 0x05;
public static readonly byte BlockLangGRAPH = 0x06;
// Max number of vars (multiread/write)
public static readonly int MaxVars = 20;
// Client Connection Type
public static readonly UInt16 CONNTYPE_PG = 0x01; // Connect to the PLC as a PG
public static readonly UInt16 CONNTYPE_OP = 0x02; // Connect to the PLC as an OP
public static readonly UInt16 CONNTYPE_BASIC = 0x03; // Basic connection
// Job
private const int JobComplete = 0;
private const int JobPending = 1;
private IntPtr Client;
// New Data Item, Thanks to LanceL
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct S7DataItem
{
public Int32 Area;
public Int32 WordLen;
public Int32 Result;
public Int32 DBNumber;
public Int32 Start;
public Int32 Amount;
public IntPtr pData;
}
// Block List
[StructLayout(LayoutKind.Sequential, Pack = 1)] // <- "maybe" we don't need
public struct S7BlocksList
{
public Int32 OBCount;
public Int32 FBCount;
public Int32 FCCount;
public Int32 SFBCount;
public Int32 SFCCount;
public Int32 DBCount;
public Int32 SDBCount;
};
// Packed Block Info
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
protected struct US7BlockInfo
{
public Int32 BlkType;
public Int32 BlkNumber;
public Int32 BlkLang;
public Int32 BlkFlags;
public Int32 MC7Size; // The real size in bytes
public Int32 LoadSize;
public Int32 LocalData;
public Int32 SBBLength;
public Int32 CheckSum;
public Int32 Version;
// Chars info
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 11)]
public char[] CodeDate;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 11)]
public char[] IntfDate;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 9)]
public char[] Author;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 9)]
public char[] Family;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 9)]
public char[] Header;
};
private US7BlockInfo UBlockInfo;
// Managed Block Info
public struct S7BlockInfo
{
public int BlkType;
public int BlkNumber;
public int BlkLang;
public int BlkFlags;
public int MC7Size; // The real size in bytes
public int LoadSize;
public int LocalData;
public int SBBLength;
public int CheckSum;
public int Version;
// Chars info
public string CodeDate;
public string IntfDate;
public string Author;
public string Family;
public string Header;
};
public ushort[] TS7BlocksOfType;
// Packed Order Code + Version
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
protected struct US7OrderCode
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 21)]
public char[] Code;
public byte V1;
public byte V2;
public byte V3;
};
private US7OrderCode UOrderCode;
// Managed Order Code + Version
public struct S7OrderCode
{
public string Code;
public byte V1;
public byte V2;
public byte V3;
};
// Packed CPU Info
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
protected struct US7CpuInfo
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 33)]
public char[] ModuleTypeName;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 25)]
public char[] SerialNumber;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 25)]
public char[] ASName;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 27)]
public char[] Copyright;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 25)]
public char[] ModuleName;
};
private US7CpuInfo UCpuInfo;
// Managed CPU Info
public struct S7CpuInfo
{
public string ModuleTypeName;
public string SerialNumber;
public string ASName;
public string Copyright;
public string ModuleName;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct S7CpInfo
{
public Int32 MaxPduLengt;
public Int32 MaxConnections;
public Int32 MaxMpiRate;
public Int32 MaxBusRate;
};
// See §33.1 of "System Software for S7-300/400 System and Standard Functions"
// and see SFC51 description too
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct SZL_HEADER
{
public UInt16 LENTHDR;
public UInt16 N_DR;
};
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct S7SZL
{
public SZL_HEADER Header;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x4000 - 4)]
public byte[] Data;
};
// SZL List of available SZL IDs : same as SZL but List items are big-endian adjusted
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct S7SZLList
{
public SZL_HEADER Header;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x2000 - 2)]
public UInt16[] Data;
};
// S7 Protection
// See §33.19 of "System Software for S7-300/400 System and Standard Functions"
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct S7Protection // Packed S7Protection
{
public UInt16 sch_schal;
public UInt16 sch_par;
public UInt16 sch_rel;
public UInt16 bart_sch;
public UInt16 anl_sch;
};
// C++ time struct, functions to convert it from/to DateTime are provided ;-)
[StructLayout(LayoutKind.Sequential, Pack = 1)]
protected struct cpp_tm
{
public Int32 tm_sec;
public Int32 tm_min;
public Int32 tm_hour;
public Int32 tm_mday;
public Int32 tm_mon;
public Int32 tm_year;
public Int32 tm_wday;
public Int32 tm_yday;
public Int32 tm_isdst;
}
private cpp_tm tm;
#endregion
#region [Class Control]
[DllImport(S7Consts.Snap7LibName)]
protected static extern IntPtr Cli_Create();
public S7Client()
{
Client = Cli_Create();
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_Destroy(ref IntPtr Client);
~S7Client()
{
Cli_Destroy(ref Client);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_Connect(IntPtr Client);
public int Connect()
{
return Cli_Connect(Client);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ConnectTo(IntPtr Client,
[MarshalAs(UnmanagedType.LPStr)] string Address,
int Rack,
int Slot
);
public int ConnectTo(string Address, int Rack, int Slot)
{
return Cli_ConnectTo(Client, Address, Rack, Slot);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_SetConnectionParams(IntPtr Client,
[MarshalAs(UnmanagedType.LPStr)] string Address,
UInt16 LocalTSAP,
UInt16 RemoteTSAP
);
public int SetConnectionParams(string Address, UInt16 LocalTSAP, UInt16 RemoteTSAP)
{
return Cli_SetConnectionParams(Client, Address, LocalTSAP, RemoteTSAP);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_SetConnectionType(IntPtr Client, UInt16 ConnectionType);
public int SetConnectionType(UInt16 ConnectionType)
{
return Cli_SetConnectionType(Client, ConnectionType);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_Disconnect(IntPtr Client);
public int Disconnect()
{
return Cli_Disconnect(Client);
}
// Get/SetParam needs a void* parameter, internally it decides the kind of pointer
// in accord to ParamNumber.
// To avoid the use of unsafe code we split the DLL functions and use overloaded methods.
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_GetParam")]
protected static extern int Cli_GetParam_i16(IntPtr Client, Int32 ParamNumber, ref Int16 IntValue);
public int GetParam(Int32 ParamNumber, ref Int16 IntValue)
{
return Cli_GetParam_i16(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_GetParam")]
protected static extern int Cli_GetParam_u16(IntPtr Client, Int32 ParamNumber, ref UInt16 IntValue);
public int GetParam(Int32 ParamNumber, ref UInt16 IntValue)
{
return Cli_GetParam_u16(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_GetParam")]
protected static extern int Cli_GetParam_i32(IntPtr Client, Int32 ParamNumber, ref Int32 IntValue);
public int GetParam(Int32 ParamNumber, ref Int32 IntValue)
{
return Cli_GetParam_i32(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_GetParam")]
protected static extern int Cli_GetParam_u32(IntPtr Client, Int32 ParamNumber, ref UInt32 IntValue);
public int GetParam(Int32 ParamNumber, ref UInt32 IntValue)
{
return Cli_GetParam_u32(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_GetParam")]
protected static extern int Cli_GetParam_i64(IntPtr Client, Int32 ParamNumber, ref Int64 IntValue);
public int GetParam(Int32 ParamNumber, ref Int64 IntValue)
{
return Cli_GetParam_i64(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_GetParam")]
protected static extern int Cli_GetParam_u64(IntPtr Client, Int32 ParamNumber, ref UInt64 IntValue);
public int GetParam(Int32 ParamNumber, ref UInt64 IntValue)
{
return Cli_GetParam_u64(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_SetParam")]
protected static extern int Cli_SetParam_i16(IntPtr Client, Int32 ParamNumber, ref Int16 IntValue);
public int SetParam(Int32 ParamNumber, ref Int16 IntValue)
{
return Cli_SetParam_i16(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_SetParam")]
protected static extern int Cli_SetParam_u16(IntPtr Client, Int32 ParamNumber, ref UInt16 IntValue);
public int SetParam(Int32 ParamNumber, ref UInt16 IntValue)
{
return Cli_SetParam_u16(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_SetParam")]
protected static extern int Cli_SetParam_i32(IntPtr Client, Int32 ParamNumber, ref Int32 IntValue);
public int SetParam(Int32 ParamNumber, ref Int32 IntValue)
{
return Cli_SetParam_i32(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_SetParam")]
protected static extern int Cli_SetParam_u32(IntPtr Client, Int32 ParamNumber, ref UInt32 IntValue);
public int SetParam(Int32 ParamNumber, ref UInt32 IntValue)
{
return Cli_SetParam_u32(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_SetParam")]
protected static extern int Cli_SetParam_i64(IntPtr Client, Int32 ParamNumber, ref Int64 IntValue);
public int SetParam(Int32 ParamNumber, ref Int64 IntValue)
{
return Cli_SetParam_i64(Client, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_SetParam")]
protected static extern int Cli_SetParam_u64(IntPtr Client, Int32 ParamNumber, ref UInt64 IntValue);
public int SetParam(Int32 ParamNumber, ref UInt64 IntValue)
{
return Cli_SetParam_u64(Client, ParamNumber, ref IntValue);
}
public delegate void S7CliCompletion(IntPtr usrPtr, int opCode, int opResult);
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_SetAsCallback(IntPtr Client, S7CliCompletion Completion, IntPtr usrPtr);
public int SetAsCallBack(S7CliCompletion Completion, IntPtr usrPtr)
{
return Cli_SetAsCallback(Client, Completion, usrPtr);
}
#endregion
#region [Data I/O main functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ReadArea(IntPtr Client, int Area, int DBNumber, int Start, int Amount, int WordLen, byte[] Buffer);
public int ReadArea(int Area, int DBNumber, int Start, int Amount, int WordLen, byte[] Buffer)
{
return Cli_ReadArea(Client, Area, DBNumber, Start, Amount, WordLen, Buffer);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Cli_ReadArea")]
protected static extern int Cli_ReadArea_ptr(IntPtr Client, int Area, int DBNumber, int Start, int Amount, int WordLen, IntPtr Pointer);
public int ReadArea(int Area, int DBNumber, int Start, int Amount, int WordLen, IntPtr Pointer)
{
return Cli_ReadArea_ptr(Client, Area, DBNumber, Start, Amount, WordLen, Pointer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_WriteArea(IntPtr Client, int Area, int DBNumber, int Start, int Amount, int WordLen, byte[] Buffer);
public int WriteArea(int Area, int DBNumber, int Start, int Amount, int WordLen, byte[] Buffer)
{
return Cli_WriteArea(Client, Area, DBNumber, Start, Amount, WordLen, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ReadMultiVars(IntPtr Client, ref S7DataItem Item, int ItemsCount);
public int ReadMultiVars(S7DataItem[] Items, int ItemsCount)
{
return Cli_ReadMultiVars(Client, ref Items[0], ItemsCount);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_WriteMultiVars(IntPtr Client, ref S7DataItem Item, int ItemsCount);
public int WriteMultiVars(S7DataItem[] Items, int ItemsCount)
{
return Cli_WriteMultiVars(Client, ref Items[0], ItemsCount);
}
#endregion
#region [Data I/O lean functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_DBRead(IntPtr Client, int DBNumber, int Start, int Size, byte[] Buffer);
public int DBRead(int DBNumber, int Start, int Size, byte[] Buffer)
{
return Cli_DBRead(Client, DBNumber, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_DBWrite(IntPtr Client, int DBNumber, int Start, int Size, byte[] Buffer);
public int DBWrite(int DBNumber, int Start, int Size, byte[] Buffer)
{
return Cli_DBWrite(Client, DBNumber, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_MBRead(IntPtr Client, int Start, int Size, byte[] Buffer);
public int MBRead(int Start, int Size, byte[] Buffer)
{
return Cli_MBRead(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_MBWrite(IntPtr Client, int Start, int Size, byte[] Buffer);
public int MBWrite(int Start, int Size, byte[] Buffer)
{
return Cli_MBWrite(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_EBRead(IntPtr Client, int Start, int Size, byte[] Buffer);
public int EBRead(int Start, int Size, byte[] Buffer)
{
return Cli_EBRead(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_EBWrite(IntPtr Client, int Start, int Size, byte[] Buffer);
public int EBWrite(int Start, int Size, byte[] Buffer)
{
return Cli_EBWrite(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ABRead(IntPtr Client, int Start, int Size, byte[] Buffer);
public int ABRead(int Start, int Size, byte[] Buffer)
{
return Cli_ABRead(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ABWrite(IntPtr Client, int Start, int Size, byte[] Buffer);
public int ABWrite(int Start, int Size, byte[] Buffer)
{
return Cli_ABWrite(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_TMRead(IntPtr Client, int Start, int Amount, ushort[] Buffer);
public int TMRead(int Start, int Amount, ushort[] Buffer)
{
return Cli_TMRead(Client, Start, Amount, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_TMWrite(IntPtr Client, int Start, int Amount, ushort[] Buffer);
public int TMWrite(int Start, int Amount, ushort[] Buffer)
{
return Cli_TMWrite(Client, Start, Amount, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_CTRead(IntPtr Client, int Start, int Amount, ushort[] Buffer);
public int CTRead(int Start, int Amount, ushort[] Buffer)
{
return Cli_CTRead(Client, Start, Amount, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_CTWrite(IntPtr Client, int Start, int Amount, ushort[] Buffer);
public int CTWrite(int Start, int Amount, ushort[] Buffer)
{
return Cli_CTWrite(Client, Start, Amount, Buffer);
}
#endregion
#region [Directory functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ListBlocks(IntPtr Client, ref S7BlocksList List);
public int ListBlocks(ref S7BlocksList List)
{
return Cli_ListBlocks(Client, ref List);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetAgBlockInfo(IntPtr Client, int BlockType, int BlockNum, ref US7BlockInfo Info);
public int GetAgBlockInfo(int BlockType, int BlockNum, ref S7BlockInfo Info)
{
int res = Cli_GetAgBlockInfo(Client, BlockType, BlockNum, ref UBlockInfo);
// Packed->Managed
if (res == 0)
{
Info.BlkType = UBlockInfo.BlkType;
Info.BlkNumber = UBlockInfo.BlkNumber;
Info.BlkLang = UBlockInfo.BlkLang;
Info.BlkFlags = UBlockInfo.BlkFlags;
Info.MC7Size = UBlockInfo.MC7Size;
Info.LoadSize = UBlockInfo.LoadSize;
Info.LocalData = UBlockInfo.LocalData;
Info.SBBLength = UBlockInfo.SBBLength;
Info.CheckSum = UBlockInfo.CheckSum;
Info.Version = UBlockInfo.Version;
// Chars info
Info.CodeDate = new string(UBlockInfo.CodeDate);
Info.IntfDate = new string(UBlockInfo.IntfDate);
Info.Author = new string(UBlockInfo.Author);
Info.Family = new string(UBlockInfo.Family);
Info.Header = new string(UBlockInfo.Header);
}
return res;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetPgBlockInfo(IntPtr Client, ref US7BlockInfo Info, byte[] Buffer, Int32 Size);
public int GetPgBlockInfo(ref S7BlockInfo Info, byte[] Buffer, int Size)
{
int res = Cli_GetPgBlockInfo(Client, ref UBlockInfo, Buffer, Size);
// Packed->Managed
if (res == 0)
{
Info.BlkType = UBlockInfo.BlkType;
Info.BlkNumber = UBlockInfo.BlkNumber;
Info.BlkLang = UBlockInfo.BlkLang;
Info.BlkFlags = UBlockInfo.BlkFlags;
Info.MC7Size = UBlockInfo.MC7Size;
Info.LoadSize = UBlockInfo.LoadSize;
Info.LocalData = UBlockInfo.LocalData;
Info.SBBLength = UBlockInfo.SBBLength;
Info.CheckSum = UBlockInfo.CheckSum;
Info.Version = UBlockInfo.Version;
// Chars info
Info.CodeDate = new string(UBlockInfo.CodeDate);
Info.IntfDate = new string(UBlockInfo.IntfDate);
Info.Author = new string(UBlockInfo.Author);
Info.Family = new string(UBlockInfo.Family);
Info.Header = new string(UBlockInfo.Header);
}
return res;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ListBlocksOfType(IntPtr Client, Int32 BlockType, ushort[] List, ref int ItemsCount);
public int ListBlocksOfType(int BlockType, ushort[] List, ref int ItemsCount)
{
return Cli_ListBlocksOfType(Client, BlockType, List, ref ItemsCount);
}
#endregion
#region [Blocks functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_Upload(IntPtr Client, int BlockType, int BlockNum, byte[] UsrData, ref int Size);
public int Upload(int BlockType, int BlockNum, byte[] UsrData, ref int Size)
{
return Cli_Upload(Client, BlockType, BlockNum, UsrData, ref Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_FullUpload(IntPtr Client, int BlockType, int BlockNum, byte[] UsrData, ref int Size);
public int FullUpload(int BlockType, int BlockNum, byte[] UsrData, ref int Size)
{
return Cli_FullUpload(Client, BlockType, BlockNum, UsrData, ref Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_Download(IntPtr Client, int BlockNum, byte[] UsrData, int Size);
public int Download(int BlockNum, byte[] UsrData, int Size)
{
return Cli_Download(Client, BlockNum, UsrData, Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_Delete(IntPtr Client, int BlockType, int BlockNum);
public int Delete(int BlockType, int BlockNum)
{
return Cli_Delete(Client, BlockType, BlockNum);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_DBGet(IntPtr Client, int DBNumber, byte[] UsrData, ref int Size);
public int DBGet(int DBNumber, byte[] UsrData, ref int Size)
{
return Cli_DBGet(Client, DBNumber, UsrData, ref Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_DBFill(IntPtr Client, int DBNumber, int FillChar);
public int DBFill(int DBNumber, int FillChar)
{
return Cli_DBFill(Client, DBNumber, FillChar);
}
#endregion
#region [Date/Time functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetPlcDateTime(IntPtr Client, ref cpp_tm tm);
public int GetPlcDateTime(ref DateTime DT)
{
int res = Cli_GetPlcDateTime(Client, ref tm);
if (res == 0)
{
// Packed->Managed
DateTime PlcDT = new DateTime(tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
DT = PlcDT;
}
return res;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_SetPlcDateTime(IntPtr Client, ref cpp_tm tm);
public int SetPlcDateTime(DateTime DT)
{
// Managed->Packed
tm.tm_year = DT.Year - 1900;
tm.tm_mon = DT.Month-1;
tm.tm_mday = DT.Day;
tm.tm_hour = DT.Hour;
tm.tm_min = DT.Minute;
tm.tm_sec = DT.Second;
return Cli_SetPlcDateTime(Client, ref tm);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_SetPlcSystemDateTime(IntPtr Client);
public int SetPlcSystemDateTime()
{
return Cli_SetPlcSystemDateTime(Client);
}
#endregion
#region [System Info functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetOrderCode(IntPtr Client, ref US7OrderCode Info);
public int GetOrderCode(ref S7OrderCode Info)
{
int res = Cli_GetOrderCode(Client, ref UOrderCode);
// Packed->Managed
if (res == 0)
{
Info.Code = new string(UOrderCode.Code);
Info.V1 = UOrderCode.V1;
Info.V2 = UOrderCode.V2;
Info.V3 = UOrderCode.V3;
}
return res;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetCpuInfo(IntPtr Client, ref US7CpuInfo Info);
public int GetCpuInfo(ref S7CpuInfo Info)
{
int res = Cli_GetCpuInfo(Client, ref UCpuInfo);
// Packed->Managed
if (res == 0)
{
Info.ModuleTypeName = new string(UCpuInfo.ModuleTypeName);
Info.SerialNumber = new string(UCpuInfo.SerialNumber);
Info.ASName = new string(UCpuInfo.ASName);
Info.Copyright = new string(UCpuInfo.Copyright);
Info.ModuleName = new string(UCpuInfo.ModuleName);
}
return res;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetCpInfo(IntPtr Client, ref S7CpInfo Info);
public int GetCpInfo(ref S7CpInfo Info)
{
return Cli_GetCpInfo(Client, ref Info);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ReadSZL(IntPtr Client, int ID, int Index, ref S7SZL Data, ref Int32 Size);
public int ReadSZL(int ID, int Index, ref S7SZL Data, ref Int32 Size)
{
return Cli_ReadSZL(Client, ID, Index, ref Data, ref Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ReadSZLList(IntPtr Client, ref S7SZLList List, ref Int32 ItemsCount);
public int ReadSZLList(ref S7SZLList List, ref Int32 ItemsCount)
{
return Cli_ReadSZLList(Client, ref List, ref ItemsCount);
}
#endregion
#region [Control functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_PlcHotStart(IntPtr Client);
public int PlcHotStart()
{
return Cli_PlcHotStart(Client);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_PlcColdStart(IntPtr Client);
public int PlcColdStart()
{
return Cli_PlcColdStart(Client);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_PlcStop(IntPtr Client);
public int PlcStop()
{
return Cli_PlcStop(Client);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_CopyRamToRom(IntPtr Client, UInt32 Timeout);
public int PlcCopyRamToRom(UInt32 Timeout)
{
return Cli_CopyRamToRom(Client, Timeout);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_Compress(IntPtr Client, UInt32 Timeout);
public int PlcCompress(UInt32 Timeout)
{
return Cli_Compress(Client, Timeout);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetPlcStatus(IntPtr Client, ref Int32 Status);
public int PlcGetStatus(ref Int32 Status)
{
return Cli_GetPlcStatus(Client, ref Status);
}
#endregion
#region [Security functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetProtection(IntPtr Client, ref S7Protection Protection);
public int GetProtection(ref S7Protection Protection)
{
return Cli_GetProtection(Client, ref Protection);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_SetSessionPassword(IntPtr Client, [MarshalAs(UnmanagedType.LPStr)] string Password);
public int SetSessionPassword(string Password)
{
return Cli_SetSessionPassword(Client, Password);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_ClearSessionPassword(IntPtr Client);
public int ClearSessionPassword()
{
return Cli_ClearSessionPassword(Client);
}
#endregion
#region [Low Level]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_IsoExchangeBuffer(IntPtr Client, byte[] Buffer, ref Int32 Size);
public int IsoExchangeBuffer(byte[] Buffer, ref Int32 Size)
{
return Cli_IsoExchangeBuffer(Client, Buffer, ref Size);
}
#endregion
#region [Async functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsReadArea(IntPtr Client, int Area, int DBNumber, int Start, int Amount, int WordLen, byte[] Buffer);
public int AsReadArea(int Area, int DBNumber, int Start, int Amount, int WordLen, byte[] Buffer)
{
return Cli_AsReadArea(Client, Area, DBNumber, Start, Amount, WordLen, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsWriteArea(IntPtr Client, int Area, int DBNumber, int Start, int Amount, int WordLen, byte[] Buffer);
public int AsWriteArea(int Area, int DBNumber, int Start, int Amount, int WordLen, byte[] Buffer)
{
return Cli_AsWriteArea(Client, Area, DBNumber, Start, Amount, WordLen, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsDBRead(IntPtr Client, int DBNumber, int Start, int Size, byte[] Buffer);
public int AsDBRead(int DBNumber, int Start, int Size, byte[] Buffer)
{
return Cli_AsDBRead(Client, DBNumber, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsDBWrite(IntPtr Client, int DBNumber, int Start, int Size, byte[] Buffer);
public int AsDBWrite(int DBNumber, int Start, int Size, byte[] Buffer)
{
return Cli_AsDBWrite(Client, DBNumber, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsMBRead(IntPtr Client, int Start, int Size, byte[] Buffer);
public int AsMBRead(int Start, int Size, byte[] Buffer)
{
return Cli_AsMBRead(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsMBWrite(IntPtr Client, int Start, int Size, byte[] Buffer);
public int AsMBWrite(int Start, int Size, byte[] Buffer)
{
return Cli_AsMBWrite(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsEBRead(IntPtr Client, int Start, int Size, byte[] Buffer);
public int AsEBRead(int Start, int Size, byte[] Buffer)
{
return Cli_AsEBRead(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsEBWrite(IntPtr Client, int Start, int Size, byte[] Buffer);
public int AsEBWrite(int Start, int Size, byte[] Buffer)
{
return Cli_AsEBWrite(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsABRead(IntPtr Client, int Start, int Size, byte[] Buffer);
public int AsABRead(int Start, int Size, byte[] Buffer)
{
return Cli_AsABRead(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsABWrite(IntPtr Client, int Start, int Size, byte[] Buffer);
public int AsABWrite(int Start, int Size, byte[] Buffer)
{
return Cli_AsABWrite(Client, Start, Size, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsTMRead(IntPtr Client, int Start, int Amount, ushort[] Buffer);
public int AsTMRead(int Start, int Amount, ushort[] Buffer)
{
return Cli_AsTMRead(Client, Start, Amount, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsTMWrite(IntPtr Client, int Start, int Amount, ushort[] Buffer);
public int AsTMWrite(int Start, int Amount, ushort[] Buffer)
{
return Cli_AsTMWrite(Client, Start, Amount, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsCTRead(IntPtr Client, int Start, int Amount, ushort[] Buffer);
public int AsCTRead(int Start, int Amount, ushort[] Buffer)
{
return Cli_AsCTRead(Client, Start, Amount, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsCTWrite(IntPtr Client, int Start, int Amount, ushort[] Buffer);
public int AsCTWrite(int Start, int Amount, ushort[] Buffer)
{
return Cli_AsCTWrite(Client, Start, Amount, Buffer);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsListBlocksOfType(IntPtr Client, Int32 BlockType, ushort[] List);
public int AsListBlocksOfType(int BlockType, ushort[] List)
{
return Cli_AsListBlocksOfType(Client, BlockType, List);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsReadSZL(IntPtr Client, int ID, int Index, ref S7SZL Data, ref Int32 Size);
public int AsReadSZL(int ID, int Index, ref S7SZL Data, ref Int32 Size)
{
return Cli_AsReadSZL(Client, ID, Index, ref Data, ref Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsReadSZLList(IntPtr Client, ref S7SZLList List, ref Int32 ItemsCount);
public int AsReadSZLList(ref S7SZLList List, ref Int32 ItemsCount)
{
return Cli_AsReadSZLList(Client, ref List, ref ItemsCount);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsUpload(IntPtr Client, int BlockType, int BlockNum, byte[] UsrData, ref int Size);
public int AsUpload(int BlockType, int BlockNum, byte[] UsrData, ref int Size)
{
return Cli_AsUpload(Client, BlockType, BlockNum, UsrData, ref Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsFullUpload(IntPtr Client, int BlockType, int BlockNum, byte[] UsrData, ref int Size);
public int AsFullUpload(int BlockType, int BlockNum, byte[] UsrData, ref int Size)
{
return Cli_AsFullUpload(Client, BlockType, BlockNum, UsrData, ref Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsDownload(IntPtr Client, int BlockNum, byte[] UsrData, int Size);
public int ASDownload(int BlockNum, byte[] UsrData, int Size)
{
return Cli_AsDownload(Client, BlockNum, UsrData, Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsPlcCopyRamToRom(IntPtr Client, UInt32 Timeout);
public int AsPlcCopyRamToRom(UInt32 Timeout)
{
return Cli_AsPlcCopyRamToRom(Client, Timeout);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsPlcCompress(IntPtr Client, UInt32 Timeout);
public int AsPlcCompress(UInt32 Timeout)
{
return Cli_AsPlcCompress(Client, Timeout);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsDBGet(IntPtr Client, int DBNumber, byte[] UsrData, ref int Size);
public int AsDBGet(int DBNumber, byte[] UsrData, ref int Size)
{
return Cli_AsDBGet(Client, DBNumber, UsrData, ref Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_AsDBFill(IntPtr Client, int DBNumber, int FillChar);
public int AsDBFill(int DBNumber, int FillChar)
{
return Cli_AsDBFill(Client, DBNumber, FillChar);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_CheckAsCompletion(IntPtr Client, ref Int32 opResult);
public bool CheckAsCompletion(ref int opResult)
{
return Cli_CheckAsCompletion(Client, ref opResult) == JobComplete;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_WaitAsCompletion(IntPtr Client, Int32 Timeout);
public int WaitAsCompletion(int Timeout)
{
return Cli_WaitAsCompletion(Client, Timeout);
}
#endregion
#region [Info Functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetExecTime(IntPtr Client, ref UInt32 Time);
public int ExecTime()
{
UInt32 Time = new UInt32();
if (Cli_GetExecTime(Client, ref Time) == 0)
return (int)(Time);
else
return -1;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetLastError(IntPtr Client, ref Int32 LastError);
public int LastError()
{
Int32 ClientLastError = new Int32();
if (Cli_GetLastError(Client, ref ClientLastError) == 0)
return (int)ClientLastError;
else
return -1;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetPduLength(IntPtr Client, ref Int32 Requested, ref Int32 Negotiated);
public int RequestedPduLength()
{
Int32 Requested = new Int32();
Int32 Negotiated = new Int32();
if (Cli_GetPduLength(Client, ref Requested, ref Negotiated) == 0)
return Requested;
else
return -1;
}
public int NegotiatedPduLength()
{
Int32 Requested = new Int32();
Int32 Negotiated = new Int32();
if (Cli_GetPduLength(Client, ref Requested, ref Negotiated) == 0)
return Negotiated;
else
return -1;
}
[DllImport(S7Consts.Snap7LibName, CharSet = CharSet.Ansi)]
protected static extern int Cli_ErrorText(int Error, StringBuilder ErrMsg, int TextSize);
public string ErrorText(int Error)
{
StringBuilder Message = new StringBuilder(MsgTextLen);
Cli_ErrorText(Error, Message, MsgTextLen);
return Message.ToString();
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Cli_GetConnected(IntPtr Client, ref UInt32 IsConnected);
public bool Connected()
{
UInt32 IsConnected = new UInt32();
if (Cli_GetConnected(Client, ref IsConnected) == 0)
return IsConnected!=0;
else
return false;
}
#endregion
}
public class S7Server
{
#region [Constants, private vars and TypeDefs]
private const int MsgTextLen = 1024;
private const int mkEvent = 0;
private const int mkLog = 1;
// S7 Area ID
public const byte S7AreaPE = 0x81;
public const byte S7AreaPA = 0x82;
public const byte S7AreaMK = 0x83;
public const byte S7AreaDB = 0x84;
public const byte S7AreaCT = 0x1C;
public const byte S7AreaTM = 0x1D;
// S7 Word Length
public const int S7WLBit = 0x01;
public const int S7WLByte = 0x02;
public const int S7WLWord = 0x04;
public const int S7WLDWord = 0x06;
public const int S7WLReal = 0x08;
public const int S7WLCounter = 0x1C;
public const int S7WLTimer = 0x1D;
// Server Area ID (use with Register/unregister - Lock/unlock Area)
public static readonly int srvAreaPE = 0;
public static readonly int srvAreaPA = 1;
public static readonly int srvAreaMK = 2;
public static readonly int srvAreaCT = 3;
public static readonly int srvAreaTM = 4;
public static readonly int srvAreaDB = 5;
// Errors
public static readonly uint errSrvCannotStart = 0x00100000; // Server cannot start
public static readonly uint errSrvDBNullPointer = 0x00200000; // Passed null as PData
public static readonly uint errSrvAreaAlreadyExists = 0x00300000; // Area Re-registration
public static readonly uint errSrvUnknownArea = 0x00400000; // Unknown area
public static readonly uint errSrvInvalidParams = 0x00500000; // Invalid param(s) supplied
public static readonly uint errSrvTooManyDB = 0x00600000; // Cannot register DB
public static readonly uint errSrvInvalidParamNumber = 0x00700000; // Invalid param (srv_get/set_param)
public static readonly uint errSrvCannotChangeParam = 0x00800000; // Cannot change because running
// TCP Server Event codes
public static readonly uint evcServerStarted = 0x00000001;
public static readonly uint evcServerStopped = 0x00000002;
public static readonly uint evcListenerCannotStart = 0x00000004;
public static readonly uint evcClientAdded = 0x00000008;
public static readonly uint evcClientRejected = 0x00000010;
public static readonly uint evcClientNoRoom = 0x00000020;
public static readonly uint evcClientException = 0x00000040;
public static readonly uint evcClientDisconnected = 0x00000080;
public static readonly uint evcClientTerminated = 0x00000100;
public static readonly uint evcClientsDropped = 0x00000200;
public static readonly uint evcReserved_00000400 = 0x00000400; // actually unused
public static readonly uint evcReserved_00000800 = 0x00000800; // actually unused
public static readonly uint evcReserved_00001000 = 0x00001000; // actually unused
public static readonly uint evcReserved_00002000 = 0x00002000; // actually unused
public static readonly uint evcReserved_00004000 = 0x00004000; // actually unused
public static readonly uint evcReserved_00008000 = 0x00008000; // actually unused
// S7 Server Event Code
public static readonly uint evcPDUincoming = 0x00010000;
public static readonly uint evcDataRead = 0x00020000;
public static readonly uint evcDataWrite = 0x00040000;
public static readonly uint evcNegotiatePDU = 0x00080000;
public static readonly uint evcReadSZL = 0x00100000;
public static readonly uint evcClock = 0x00200000;
public static readonly uint evcUpload = 0x00400000;
public static readonly uint evcDownload = 0x00800000;
public static readonly uint evcDirectory = 0x01000000;
public static readonly uint evcSecurity = 0x02000000;
public static readonly uint evcControl = 0x04000000;
public static readonly uint evcReserved_08000000 = 0x08000000; // actually unused
public static readonly uint evcReserved_10000000 = 0x10000000; // actually unused
public static readonly uint evcReserved_20000000 = 0x20000000; // actually unused
public static readonly uint evcReserved_40000000 = 0x40000000; // actually unused
public static readonly uint evcReserved_80000000 = 0x80000000; // actually unused
// Masks to enable/disable all events
public static readonly uint evcAll = 0xFFFFFFFF;
public static readonly uint evcNone = 0x00000000;
// Event SubCodes
public static readonly ushort evsUnknown = 0x0000;
public static readonly ushort evsStartUpload = 0x0001;
public static readonly ushort evsStartDownload = 0x0001;
public static readonly ushort evsGetBlockList = 0x0001;
public static readonly ushort evsStartListBoT = 0x0002;
public static readonly ushort evsListBoT = 0x0003;
public static readonly ushort evsGetBlockInfo = 0x0004;
public static readonly ushort evsGetClock = 0x0001;
public static readonly ushort evsSetClock = 0x0002;
public static readonly ushort evsSetPassword = 0x0001;
public static readonly ushort evsClrPassword = 0x0002;
// Event Params : functions group
public static readonly ushort grProgrammer = 0x0041;
public static readonly ushort grCyclicData = 0x0042;
public static readonly ushort grBlocksInfo = 0x0043;
public static readonly ushort grSZL = 0x0044;
public static readonly ushort grPassword = 0x0045;
public static readonly ushort grBSend = 0x0046;
public static readonly ushort grClock = 0x0047;
public static readonly ushort grSecurity = 0x0045;
// Event Params : control codes
public static readonly ushort CodeControlUnknown = 0x0000;
public static readonly ushort CodeControlColdStart = 0x0001;
public static readonly ushort CodeControlWarmStart = 0x0002;
public static readonly ushort CodeControlStop = 0x0003;
public static readonly ushort CodeControlCompress = 0x0004;
public static readonly ushort CodeControlCpyRamRom = 0x0005;
public static readonly ushort CodeControlInsDel = 0x0006;
// Event Result
public static readonly ushort evrNoError = 0x0000;
public static readonly ushort evrFragmentRejected = 0x0001;
public static readonly ushort evrMalformedPDU = 0x0002;
public static readonly ushort evrSparseBytes = 0x0003;
public static readonly ushort evrCannotHandlePDU = 0x0004;
public static readonly ushort evrNotImplemented = 0x0005;
public static readonly ushort evrErrException = 0x0006;
public static readonly ushort evrErrAreaNotFound = 0x0007;
public static readonly ushort evrErrOutOfRange = 0x0008;
public static readonly ushort evrErrOverPDU = 0x0009;
public static readonly ushort evrErrTransportSize = 0x000A;
public static readonly ushort evrInvalidGroupUData = 0x000B;
public static readonly ushort evrInvalidSZL = 0x000C;
public static readonly ushort evrDataSizeMismatch = 0x000D;
public static readonly ushort evrCannotUpload = 0x000E;
public static readonly ushort evrCannotDownload = 0x000F;
public static readonly ushort evrUploadInvalidID = 0x0010;
public static readonly ushort evrResNotFound = 0x0011;
// Read/Write Operation (to be used into RWCallback)
public static readonly int OperationRead = 0;
public static readonly int OperationWrite = 1;
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct USrvEvent
{
public IntPtr EvtTime; // It's platform dependent (32 or 64 bit)
public Int32 EvtSender;
public UInt32 EvtCode;
public ushort EvtRetCode;
public ushort EvtParam1;
public ushort EvtParam2;
public ushort EvtParam3;
public ushort EvtParam4;
}
public struct SrvEvent
{
public DateTime EvtTime;
public Int32 EvtSender;
public UInt32 EvtCode;
public ushort EvtRetCode;
public ushort EvtParam1;
public ushort EvtParam2;
public ushort EvtParam3;
public ushort EvtParam4;
}
private Dictionary<Int32, GCHandle> HArea;
private IntPtr Server;
#endregion
#region [Class Control]
[DllImport(S7Consts.Snap7LibName)]
protected static extern IntPtr Srv_Create();
public S7Server()
{
Server = Srv_Create();
HArea = new Dictionary<int,GCHandle>();
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_Destroy(ref IntPtr Server);
~S7Server()
{
foreach(var Item in HArea)
{
GCHandle handle = Item.Value;
if (handle!=null)
handle.Free();
}
Srv_Destroy(ref Server);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_StartTo(IntPtr Server, [MarshalAs(UnmanagedType.LPStr)] string Address);
public int StartTo(string Address)
{
return Srv_StartTo(Server, Address);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_Start(IntPtr Server);
public int Start()
{
return Srv_Start(Server);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_Stop(IntPtr Server);
public int Stop()
{
return Srv_Stop(Server);
}
// Get/SetParam needs a void* parameter, internally it decides the kind of pointer
// in accord to ParamNumber.
// To avoid the use of unsafe code we split the DLL functions and use overloaded methods.
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_GetParam")]
protected static extern int Srv_GetParam_i16(IntPtr Server, Int32 ParamNumber, ref Int16 IntValue);
public int GetParam(Int32 ParamNumber, ref Int16 IntValue)
{
return Srv_GetParam_i16(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_GetParam")]
protected static extern int Srv_GetParam_u16(IntPtr Server, Int32 ParamNumber, ref UInt16 IntValue);
public int GetParam(Int32 ParamNumber, ref UInt16 IntValue)
{
return Srv_GetParam_u16(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_GetParam")]
protected static extern int Srv_GetParam_i32(IntPtr Server, Int32 ParamNumber, ref Int32 IntValue);
public int GetParam(Int32 ParamNumber, ref Int32 IntValue)
{
return Srv_GetParam_i32(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_GetParam")]
protected static extern int Srv_GetParam_u32(IntPtr Server, Int32 ParamNumber, ref UInt32 IntValue);
public int GetParam(Int32 ParamNumber, ref UInt32 IntValue)
{
return Srv_GetParam_u32(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_GetParam")]
protected static extern int Srv_GetParam_i64(IntPtr Server, Int32 ParamNumber, ref Int64 IntValue);
public int GetParam(Int32 ParamNumber, ref Int64 IntValue)
{
return Srv_GetParam_i64(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_GetParam")]
protected static extern int Srv_GetParam_u64(IntPtr Server, Int32 ParamNumber, ref UInt64 IntValue);
public int GetParam(Int32 ParamNumber, ref UInt64 IntValue)
{
return Srv_GetParam_u64(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_SetParam")]
protected static extern int Srv_SetParam_i16(IntPtr Server, Int32 ParamNumber, ref Int16 IntValue);
public int SetParam(Int32 ParamNumber, ref Int16 IntValue)
{
return Srv_SetParam_i16(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_SetParam")]
protected static extern int Srv_SetParam_u16(IntPtr Server, Int32 ParamNumber, ref UInt16 IntValue);
public int SetParam(Int32 ParamNumber, ref UInt16 IntValue)
{
return Srv_SetParam_u16(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_SetParam")]
protected static extern int Srv_SetParam_i32(IntPtr Server, Int32 ParamNumber, ref Int32 IntValue);
public int SetParam(Int32 ParamNumber, ref Int32 IntValue)
{
return Srv_SetParam_i32(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_SetParam")]
protected static extern int Srv_SetParam_u32(IntPtr Server, Int32 ParamNumber, ref UInt32 IntValue);
public int SetParam(Int32 ParamNumber, ref UInt32 IntValue)
{
return Srv_SetParam_u32(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_SetParam")]
protected static extern int Srv_SetParam_i64(IntPtr Server, Int32 ParamNumber, ref Int64 IntValue);
public int SetParam(Int32 ParamNumber, ref Int64 IntValue)
{
return Srv_SetParam_i64(Server, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Srv_SetParam")]
protected static extern int Srv_SetParam_u64(IntPtr Server, Int32 ParamNumber, ref UInt64 IntValue);
public int SetParam(Int32 ParamNumber, ref UInt64 IntValue)
{
return Srv_SetParam_u64(Server, ParamNumber, ref IntValue);
}
#endregion
#region [Data Areas functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_RegisterArea(IntPtr Server, Int32 AreaCode, Int32 Index, IntPtr pUsrData, Int32 Size);
public int RegisterArea<T>(Int32 AreaCode, Int32 Index, ref T pUsrData, Int32 Size)
{
Int32 AreaUID = (AreaCode << 16) + Index;
GCHandle handle = GCHandle.Alloc(pUsrData, GCHandleType.Pinned);
int Result = Srv_RegisterArea(Server, AreaCode, Index, handle.AddrOfPinnedObject(), Size);
if (Result == 0)
HArea.Add(AreaUID, handle);
else
handle.Free();
return Result;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_UnregisterArea(IntPtr Server, Int32 AreaCode, Int32 Index);
public int UnregisterArea(Int32 AreaCode, Int32 Index)
{
int Result = Srv_UnregisterArea(Server, AreaCode, Index);
if (Result == 0)
{
Int32 AreaUID = (AreaCode << 16) + Index;
if (HArea.ContainsKey(AreaUID)) // should be always true
{
GCHandle handle = HArea[AreaUID];
if (handle!=null) // should be always true
handle.Free();
HArea.Remove(AreaUID);
}
}
return Result;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_LockArea(IntPtr Server, Int32 AreaCode, Int32 Index);
public int LockArea(Int32 AreaCode, Int32 Index)
{
return Srv_LockArea(Server, AreaCode, Index);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_UnlockArea(IntPtr Server, Int32 AreaCode, Int32 Index);
public int UnlockArea(Int32 AreaCode, Int32 Index)
{
return Srv_UnlockArea(Server, AreaCode, Index);
}
#endregion
#region [Notification functions (Events)]
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct RWBuffer
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 1024)] // A telegram cannot exceed PDU size (960 bytes)
public byte[] Data;
}
public delegate void TSrvCallback(IntPtr usrPtr, ref USrvEvent Event, int Size);
public delegate int TSrvRWAreaCallback(IntPtr usrPtr, int Sender, int Operation, ref S7Consts.S7Tag Tag, ref RWBuffer Buffer);
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_SetEventsCallback(IntPtr Server, TSrvCallback Callback, IntPtr usrPtr);
public int SetEventsCallBack(TSrvCallback Callback, IntPtr usrPtr)
{
return Srv_SetEventsCallback(Server, Callback, usrPtr);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_SetReadEventsCallback(IntPtr Server, TSrvCallback Callback, IntPtr usrPtr);
public int SetReadEventsCallBack(TSrvCallback Callback, IntPtr usrPtr)
{
return Srv_SetReadEventsCallback(Server, Callback, usrPtr);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_SetRWAreaCallback(IntPtr Server, TSrvRWAreaCallback Callback, IntPtr usrPtr);
public int SetRWAreaCallBack(TSrvRWAreaCallback Callback, IntPtr usrPtr)
{
return Srv_SetRWAreaCallback(Server, Callback, usrPtr);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_PickEvent(IntPtr Server, ref USrvEvent Event, ref Int32 EvtReady);
public bool PickEvent(ref USrvEvent Event)
{
Int32 EvtReady = new Int32();
if (Srv_PickEvent(Server, ref Event, ref EvtReady) == 0)
return EvtReady != 0;
else
return false;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_ClearEvents(IntPtr Server);
public int ClearEvents()
{
return Srv_ClearEvents(Server);
}
[DllImport(S7Consts.Snap7LibName, CharSet = CharSet.Ansi)]
protected static extern int Srv_EventText(ref USrvEvent Event, StringBuilder EvtMsg, int TextSize);
public string EventText(ref USrvEvent Event)
{
StringBuilder Message = new StringBuilder(MsgTextLen);
Srv_EventText(ref Event, Message, MsgTextLen);
return Message.ToString();
}
public DateTime EvtTimeToDateTime(IntPtr TimeStamp)
{
DateTime UnixStartEpoch = new DateTime(1970, 1, 1, 0, 0, 0, 0);
return UnixStartEpoch.AddSeconds(Convert.ToDouble(TimeStamp));
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_GetMask(IntPtr Server, Int32 MaskKind, ref UInt32 Mask);
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_SetMask(IntPtr Server, Int32 MaskKind, UInt32 Mask);
// Property LogMask R/W
public UInt32 LogMask {
get
{
UInt32 Mask = new UInt32();
if (Srv_GetMask(Server, S7Server.mkLog, ref Mask)==0)
return Mask;
else
return 0;
}
set
{
Srv_SetMask(Server, S7Server.mkLog, value);
}
}
// Property EventMask R/W
public UInt32 EventMask
{
get
{
UInt32 Mask = new UInt32();
if (Srv_GetMask(Server, S7Server.mkEvent, ref Mask) == 0)
return Mask;
else
return 0;
}
set
{
Srv_SetMask(Server, S7Server.mkEvent, value);
}
}
#endregion
#region [Info functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_GetStatus(IntPtr Server, ref Int32 ServerStatus, ref Int32 CpuStatus, ref Int32 ClientsCount);
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Srv_SetCpuStatus(IntPtr Server, Int32 CpuStatus);
// Property Virtual CPU status R/W
public int CpuStatus
{
get
{
Int32 CStatus = new Int32();
Int32 SStatus = new Int32();
Int32 CCount = new Int32();
if (Srv_GetStatus(Server, ref SStatus, ref CStatus, ref CCount) == 0)
return CStatus;
else
return -1;
}
set
{
Srv_SetCpuStatus(Server, value);
}
}
// Property Server Status Read Only
public int ServerStatus
{
get
{
Int32 CStatus = new Int32();
Int32 SStatus = new Int32();
Int32 CCount = new Int32();
if (Srv_GetStatus(Server, ref SStatus, ref CStatus, ref CCount) == 0)
return SStatus;
else
return -1;
}
}
// Property Clients Count Read Only
public int ClientsCount
{
get
{
Int32 CStatus = new Int32();
Int32 SStatus = new Int32();
Int32 CCount = new Int32();
if (Srv_GetStatus(Server, ref CStatus, ref SStatus, ref CCount) == 0)
return CCount;
else
return -1;
}
}
[DllImport(S7Consts.Snap7LibName, CharSet = CharSet.Ansi)]
protected static extern int Srv_ErrorText(int Error, StringBuilder ErrMsg, int TextSize);
public string ErrorText(int Error)
{
StringBuilder Message = new StringBuilder(MsgTextLen);
Srv_ErrorText(Error, Message, MsgTextLen);
return Message.ToString();
}
#endregion
}
public class S7Partner
{
#region [Constants, private vars and TypeDefs]
private const int MsgTextLen = 1024;
// Status
public static readonly int par_stopped = 0; // stopped
public static readonly int par_connecting = 1; // running and active connecting
public static readonly int par_waiting = 2; // running and waiting for a connection
public static readonly int par_linked = 3; // running and connected : linked
public static readonly int par_sending = 4; // sending data
public static readonly int par_receiving = 5; // receiving data
public static readonly int par_binderror = 6; // error starting passive server
// Errors
public static readonly uint errParAddressInUse = 0x00200000;
public static readonly uint errParNoRoom = 0x00300000;
public static readonly uint errServerNoRoom = 0x00400000;
public static readonly uint errParInvalidParams = 0x00500000;
public static readonly uint errParNotLinked = 0x00600000;
public static readonly uint errParBusy = 0x00700000;
public static readonly uint errParFrameTimeout = 0x00800000;
public static readonly uint errParInvalidPDU = 0x00900000;
public static readonly uint errParSendTimeout = 0x00A00000;
public static readonly uint errParRecvTimeout = 0x00B00000;
public static readonly uint errParSendRefused = 0x00C00000;
public static readonly uint errParNegotiatingPDU = 0x00D00000;
public static readonly uint errParSendingBlock = 0x00E00000;
public static readonly uint errParRecvingBlock = 0x00F00000;
public static readonly uint errBindError = 0x01000000;
public static readonly uint errParDestroying = 0x01100000;
public static readonly uint errParInvalidParamNumber = 0x01200000;
public static readonly uint errParCannotChangeParam = 0x01300000;
// Generic byte buffer structure, you may need to declare a more
// specialistic one in your program.
// It's used to cast the input pointer that cames from the callback.
// See the passive partned demo and the delegate S7ParRecvCallback.
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct S7Buffer
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x8000)]
public byte[] Data;
}
// Job status
private const int JobComplete = 0;
private const int JobPending = 1;
private IntPtr Partner;
private Int32 parBytesSent;
private Int32 parBytesRecv;
private Int32 parSendErrors;
private Int32 parRecvErrors;
#endregion
#region [Class Control]
[DllImport(S7Consts.Snap7LibName)]
protected static extern IntPtr Par_Create(Int32 ParActive);
public S7Partner(int Active)
{
Partner= Par_Create(Active);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_Destroy(ref IntPtr Partner);
~S7Partner()
{
Par_Destroy(ref Partner);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_StartTo(
IntPtr Partner,
[MarshalAs(UnmanagedType.LPStr)] string LocalAddress,
[MarshalAs(UnmanagedType.LPStr)] string RemoteAddress,
UInt16 LocalTSAP,
UInt16 RemoteTSAP);
public int StartTo(
string LocalAddress,
string RemoteAddress,
UInt16 LocalTSAP,
UInt16 RemoteTSAP)
{
return Par_StartTo(Partner, LocalAddress, RemoteAddress, LocalTSAP, RemoteTSAP);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_Start(IntPtr Partner);
public int Start()
{
return Par_Start(Partner);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_Stop(IntPtr Partner);
public int Stop()
{
return Par_Stop(Partner);
}
// Get/SetParam needs a void* parameter, internally it decides the kind of pointer
// in accord to ParamNumber.
// To avoid the use of unsafe code we split the DLL functions and use overloaded methods.
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_GetParam")]
protected static extern int Par_GetParam_i16(IntPtr Partner, Int32 ParamNumber, ref Int16 IntValue);
public int GetParam(Int32 ParamNumber, ref Int16 IntValue)
{
return Par_GetParam_i16(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_GetParam")]
protected static extern int Par_GetParam_u16(IntPtr Partner, Int32 ParamNumber, ref UInt16 IntValue);
public int GetParam(Int32 ParamNumber, ref UInt16 IntValue)
{
return Par_GetParam_u16(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_GetParam")]
protected static extern int Par_GetParam_i32(IntPtr Partner, Int32 ParamNumber, ref Int32 IntValue);
public int GetParam(Int32 ParamNumber, ref Int32 IntValue)
{
return Par_GetParam_i32(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_GetParam")]
protected static extern int Par_GetParam_u32(IntPtr Partner, Int32 ParamNumber, ref UInt32 IntValue);
public int GetParam(Int32 ParamNumber, ref UInt32 IntValue)
{
return Par_GetParam_u32(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_GetParam")]
protected static extern int Par_GetParam_i64(IntPtr Partner, Int32 ParamNumber, ref Int64 IntValue);
public int GetParam(Int32 ParamNumber, ref Int64 IntValue)
{
return Par_GetParam_i64(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_GetParam")]
protected static extern int Par_GetParam_u64(IntPtr Partner, Int32 ParamNumber, ref UInt64 IntValue);
public int GetParam(Int32 ParamNumber, ref UInt64 IntValue)
{
return Par_GetParam_u64(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_SetParam")]
protected static extern int Par_SetParam_i16(IntPtr Partner, Int32 ParamNumber, ref Int16 IntValue);
public int SetParam(Int32 ParamNumber, ref Int16 IntValue)
{
return Par_SetParam_i16(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_SetParam")]
protected static extern int Par_SetParam_u16(IntPtr Partner, Int32 ParamNumber, ref UInt16 IntValue);
public int SetParam(Int32 ParamNumber, ref UInt16 IntValue)
{
return Par_SetParam_u16(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_SetParam")]
protected static extern int Par_SetParam_i32(IntPtr Partner, Int32 ParamNumber, ref Int32 IntValue);
public int SetParam(Int32 ParamNumber, ref Int32 IntValue)
{
return Par_SetParam_i32(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_SetParam")]
protected static extern int Par_SetParam_u32(IntPtr Partner, Int32 ParamNumber, ref UInt32 IntValue);
public int SetParam(Int32 ParamNumber, ref UInt32 IntValue)
{
return Par_SetParam_u32(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_SetParam")]
protected static extern int Par_SetParam_i64(IntPtr Partner, Int32 ParamNumber, ref Int64 IntValue);
public int SetParam(Int32 ParamNumber, ref Int64 IntValue)
{
return Par_SetParam_i64(Partner, ParamNumber, ref IntValue);
}
[DllImport(S7Consts.Snap7LibName, EntryPoint = "Par_SetParam")]
protected static extern int Par_SetParam_u64(IntPtr Partner, Int32 ParamNumber, ref UInt64 IntValue);
public int SetParam(Int32 ParamNumber, ref UInt64 IntValue)
{
return Par_SetParam_u64(Partner, ParamNumber, ref IntValue);
}
#endregion
#region [Data I/O functions : BSend]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_BSend(IntPtr Partner, UInt32 R_ID, byte[] Buffer, Int32 Size);
public int BSend(UInt32 R_ID, byte[] Buffer, Int32 Size)
{
return Par_BSend(Partner, R_ID, Buffer, Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_AsBSend(IntPtr Partner, UInt32 R_ID, byte[] Buffer, Int32 Size);
public int AsBSend(UInt32 R_ID, byte[] Buffer, Int32 Size)
{
return Par_AsBSend(Partner, R_ID, Buffer, Size);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_CheckAsBSendCompletion(IntPtr Partner, ref Int32 opResult);
public bool CheckAsBSendCompletion(ref int opResult)
{
return Par_CheckAsBSendCompletion(Partner, ref opResult)==JobComplete;
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_WaitAsBSendCompletion(IntPtr Partner, Int32 Timeout);
public int WaitAsBSendCompletion(int Timeout)
{
return Par_WaitAsBSendCompletion(Partner, Timeout);
}
public delegate void S7ParSendCompletion(IntPtr usrPtr, int opResult);
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_SetSendCallback(IntPtr Partner, S7ParSendCompletion Completion, IntPtr usrPtr);
public int SetSendCallBack(S7ParSendCompletion Completion, IntPtr usrPtr)
{
return Par_SetSendCallback(Partner, Completion, usrPtr);
}
#endregion
#region [Data I/O functions : BRecv]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_BRecv(IntPtr Partner, ref UInt32 R_ID, byte[] Buffer, ref Int32 Size, UInt32 Timeout);
public int BRecv(ref UInt32 R_ID, byte[] Buffer, ref Int32 Size, UInt32 Timeout)
{
return Par_BRecv(Partner, ref R_ID, Buffer, ref Size, Timeout);
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_CheckAsBRecvCompletion(IntPtr Partner, ref Int32 opResult, ref UInt32 R_ID, byte[] Buffer, ref Int32 Size);
public bool CheckAsBRecvCompletion(ref Int32 opResult, ref UInt32 R_ID, byte[] Buffer, ref Int32 Size)
{
Par_CheckAsBRecvCompletion(Partner, ref opResult, ref R_ID, Buffer, ref Size);
return opResult == JobComplete;
}
public delegate void S7ParRecvCallback(IntPtr usrPtr, int opResult, uint R_ID, IntPtr pData, int Size);
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_SetRecvCallback(IntPtr Partner, S7ParRecvCallback Callback, IntPtr usrPtr);
public int SetRecvCallback(S7ParRecvCallback Callback, IntPtr usrPtr)
{
return Par_SetRecvCallback(Partner, Callback, usrPtr);
}
#endregion
#region [Info functions]
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_GetLastError(IntPtr Partner, ref Int32 LastError);
public int LastError(ref Int32 LastError)
{
Int32 PartnerLastError = new Int32();
if (Par_GetLastError(Partner, ref PartnerLastError) == 0)
return (int)PartnerLastError;
else
return -1;
}
[DllImport(S7Consts.Snap7LibName, CharSet = CharSet.Ansi)]
protected static extern int Par_ErrorText(int Error, StringBuilder ErrMsg, int TextSize);
public string ErrorText(int Error)
{
StringBuilder Message = new StringBuilder(MsgTextLen);
Par_ErrorText(Error, Message, MsgTextLen);
return Message.ToString();
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_GetStats(IntPtr Partner, ref Int32 BytesSent, ref Int32 BytesRecv,
ref Int32 SendErrors, ref Int32 RecvErrors);
private void GetStatistics()
{
if (Par_GetStats(Partner, ref parBytesSent, ref parBytesRecv, ref parSendErrors, ref parRecvErrors) != 0)
{
parBytesSent = -1;
parBytesRecv = -1;
parSendErrors = -1;
parRecvErrors = -1;
}
}
public int BytesSent
{
get
{
GetStatistics();
return parBytesSent;
}
}
public int BytesRecv
{
get
{
GetStatistics();
return parBytesRecv;
}
}
public int SendErrors
{
get
{
GetStatistics();
return parSendErrors;
}
}
public int RecvErrors
{
get
{
GetStatistics();
return parRecvErrors;
}
}
[DllImport(S7Consts.Snap7LibName)]
protected static extern int Par_GetStatus(IntPtr Partner, ref Int32 Status);
public int Status
{
get
{
int ParStatus = new int();
if (Par_GetStatus(Partner, ref ParStatus) != 0)
return -1;
else
return ParStatus;
}
}
// simply useful
public bool Linked
{
get
{
return Status == par_linked;
}
}
#endregion
}
}