public void Disconnect()
{
if (protocol == null)
{
System.Diagnostics.Debug.WriteLine("Disconnect - protocol = null");
return;
}
protocol.closeProtocol();
protocol = null;
}
public bool Connect(ProtocolTypeEnum protocolType, BaseCommConfig commCfg, out string errorStr)
{
errorStr = "";
TCPCommConfig ipCfg = commCfg as TCPCommConfig;
if (protocol != null)
{
if (slaveIP == ipCfg.addressMajor)
{
return(true);
}
else
{
errorStr = "Connected to a different device";
return(false);
}
}
try {
if (protocolType == ProtocolTypeEnum.TCP)
{
protocol = new MbusTcpMasterProtocol();
}
else
{
protocol = new MbusUdpMasterProtocol();
}
} catch (OutOfMemoryException ex) {
return(false);
}
slaveAddr = ipCfg.devId;
protocol.timeout = ipCfg.timeout;
protocol.retryCnt = ipCfg.retryCnt;
protocol.pollDelay = ipCfg.pollDelay;
protocol.setPort((short)ipCfg.addressMinor);
int res = protocol.openProtocol(ipCfg.addressMajor);
if ((res == BusProtocolErrors.FTALK_SUCCESS))
{
slaveIP = ipCfg.addressMajor;
errorStr = string.Format("Modbus/TCP Device: {0} Port: {1} opened successfully", ipCfg.addressMajor, ipCfg.addressMinor);
return(true);
}
else
{
errorStr = ("Could not open protocol, error was: " + BusProtocolErrors.getBusProtocolErrorText(res));
protocol = null;
return(false);
}
}
