public bool Equals(Address other)
{
return
this.area == other.area &&
this.dataBlock == other.dataBlock &&
this.startAddress == other.startAddress &&
this.transportType == other.transportType &&
this.length == other.length;
}
private byte[] ReadWriteMessage(Action action, Address address)
{
return ReadWriteMessage(action, address.area, address.dataBlock, address.startAddress, address.byteLength, address.transportType);
}
private byte[] ReadBytesRaw(string address, uint bytes)
{
var s7address = new Address(address);
s7address.byteLength = (ushort)bytes;
return ReadBytesRaw(s7address);
}
protected virtual void WriteBytesRaw(Address address, byte[] data)
{
var bytes = address.byteLength;
if (bytes > 65535) throw new IndexOutOfRangeException("max bytes = 65535");
if (bytes < 1) throw new IndexOutOfRangeException("min bytes = 1");
if (bytes != data.Length) throw new ArgumentException("data size does not match address");
// send read request message
var message = ReadWriteMessage(Action.Write, address);
DebugWrite("ReadWriteMessage", message);
message = EncodeTPDU(TPKT, message, data);
DebugWrite("TPDU", message);
var response = socket.Write(message);
DebugWrite("response", response);
}
protected void WriteBytesRaw(string address, byte[] data)
{
var s7address = new Address(address);
s7address.byteLength = (ushort)data.Length;
WriteBytesRaw(s7address, data);
}
protected virtual byte[] ReadBytesRaw(Address address)
{
var bytes = address.byteLength;
if (bytes > 65535) throw new IndexOutOfRangeException("max bytes = 65535");
if (bytes < 1) throw new IndexOutOfRangeException("min bytes = 1");
var message = new byte[] {};
var tpdu = new byte[] {};
var response = new byte[] {};
var data = new byte[] {};
// maximum page size = 220 bytes
if (bytes <= MAX_BYTES_PER_PAGE)
{
try
{
// send read request message
message = ReadWriteMessage(Action.Read, address);
DebugWrite("ReadWriteMessage", message);
tpdu = EncodeTPDU(TPKT, message);
DebugWrite("TPDU", tpdu);
response = socket.Write(tpdu);
DebugWrite("response", response);
data = ExtractTPDU(response);
DebugWrite("data", data);
if (data.Length != bytes) throw new ApplicationException("responce data size does not match requested size");
}
catch (SocketException ex)
{
sar.Base.Program.Log("s7Adaptor ERROR");
sar.Base.Program.Log(" >> " + this.ipAddress);
sar.Base.Program.Log(" >> " + address.ToString());
// auto-reconnect
this.Reconnect();
throw ex;
}
catch (Exception ex)
{
sar.Base.Program.Log("s7Adaptor ERROR");
sar.Base.Program.Log(" >> " + this.ipAddress);
sar.Base.Program.Log(" >> " + address.ToString());
sar.Base.Program.Log(StringHelper.ArrayToString("ReadWriteMessage", message));
sar.Base.Program.Log(StringHelper.ArrayToString("TPDU", tpdu));
sar.Base.Program.Log(StringHelper.ArrayToString("response", response));
sar.Base.Program.Log(StringHelper.ArrayToString("data", data));
throw ex;
}
return data;
}
else
{
data = new byte[bytes];
address.byteLength = MAX_BYTES_PER_PAGE;
Array.Copy(ReadBytesRaw(address), 0, data, bytes-MAX_BYTES_PER_PAGE, MAX_BYTES_PER_PAGE);
address.byteAdddress += MAX_BYTES_PER_PAGE;
address.startAddress += (MAX_BYTES_PER_PAGE * 8);
address.byteLength = (ushort)(bytes - MAX_BYTES_PER_PAGE);
Array.Copy(ReadBytesRaw(address), 0, data, 0, address.byteLength);
return data;
}
}
