private void WriteOperations(ref List <ReadWriteRequest> values, string parentID, bool suppressEthernetHeader)
{
PComA pcomA = new PComA();
if (this.BreakFlag)
{
throw new ComDriveExceptions("Request aborted by user",
ComDriveExceptions.ComDriveException.AbortedByUser);
}
foreach (WriteOperands wo in values)
{
pcomA.BuildAsciiCommand(UnitId,
Utils.ASCIIOperandTypes[Enum.GetName(typeof(OperandTypes), wo.OperandType)].CommandCodeForWrite,
(wo as WriteOperands).StartAddress, wo.NumberOfOperands, (wo as WriteOperands).Values,
(wo as WriteOperands).TimerValueFormat);
string readMessage = pcomA.MessageToPLC as string;
if (this.BreakFlag)
{
throw new ComDriveExceptions("Request aborted by user",
ComDriveExceptions.ComDriveException.AbortedByUser);
}
GuidClass guid = new GuidClass();
lock (guid)
{
Channel.Send(readMessage, ReceiveString, guid, parentID, "ASCII Protocol - Write Operands", PlcGuid,
suppressEthernetHeader);
Monitor.Wait(guid);
}
if (this.BreakFlag)
{
throw new ComDriveExceptions("Request aborted by user",
ComDriveExceptions.ComDriveException.AbortedByUser);
}
PlcResponseMessage plcResponseMessage;
lock (_lockObj)
{
plcResponseMessage = m_responseMessageQueue[guid];
m_responseMessageQueue.Remove(guid);
}
if (plcResponseMessage.comException == CommunicationException.Timeout)
{
throw new ComDriveExceptions("Cannot communicate with the PLC with the specified UnitID!",
ComDriveExceptions.ComDriveException.CommunicationTimeout);
}
pcomA.DisAssembleAsciiResult(plcResponseMessage.responseStringMessage, UnitId,
Utils.ASCIIOperandTypes[Enum.GetName(typeof(OperandTypes), wo.OperandType)].CommandCodeForWrite,
wo.StartAddress, wo.NumberOfOperands, null, wo.TimerValueFormat);
}
}
internal override void PerformReadWrite(ref ReadWriteRequest[] values, string parentID,
bool suppressEthernetHeader)
{
if (pcomA == null)
{
pcomA = new PComA();
}
ReadWriteOperandsCommand(ref values, parentID, suppressEthernetHeader);
}
