/// <summary>
///按位获取输入信号
/// </summary>
/// <param name="nIndex"></param>
/// <returns></returns>
public override bool ReadIoInBit(int nIndex)
{
if (!m_bOpen)
{
return(false);
}
int nAxisIndex = (nIndex & 0xff00) >> 8;
int nBitIndex = nIndex & 0x00ff;
byte slaveAddress = (byte)nAxisIndex;
ushort coilAddress = (ushort)(nBitIndex + 16);
bool brtn = false;
try
{
lock (_syncRoot)
{
brtn = _master.ReadCoils(slaveAddress, coilAddress, 1)[0];
}
return(brtn);
}
catch (Exception ex)
{
//if (_serialPort.IsOpen)
// _serialPort.Close();
//if (!_serialPort.IsOpen)
// _serialPort.Open();
//_master.Dispose();
//_master = ModbusSerialMaster.CreateRtu(_serialPort);
_logger.Warn(ex.Message);
return(false);
}
}
public void NModbusUsbRtuMaster_ReadTimeout()
{
using (FtdUsbPort port = ModbusMasterFixture.CreateAndOpenUsbPort(ModbusMasterFixture.DefaultMasterUsbPortId))
{
IModbusSerialMaster master = ModbusSerialMaster.CreateRtu(port);
master.ReadCoils(100, 1, 1);
}
}
public void NModbusAsciiMaster_ReadTimeout()
{
using (SerialPort port = ModbusMasterFixture.CreateAndOpenSerialPort(ModbusMasterFixture.DefaultMasterSerialPortName))
{
IModbusSerialMaster master = ModbusSerialMaster.CreateAscii(port);
master.ReadCoils(100, 1, 1);
}
}
public void NModbusAsciiMaster_ReadTimeout()
{
SerialPort port = ModbusMasterFixture.CreateAndOpenSerialPort(ModbusMasterFixture.DefaultMasterSerialPortName);
using IModbusSerialMaster master = ModbusSerialMaster.CreateAscii(port);
master.Transport.ReadTimeout = master.Transport.WriteTimeout = 1000;
Assert.Throws <TimeoutException>(() => master.ReadCoils(100, 1, 1));
}
public void NModbusAsciiMaster_ReadTimeout()
{
SerialPort port = ModbusMasterFixture.CreateAndOpenSerialPort(ModbusMasterFixture.DefaultMasterSerialPortName);
using (IModbusSerialMaster master = ModbusSerialMaster.CreateAscii(port))
{
master.Transport.ReadTimeout = master.Transport.WriteTimeout = 1000;
master.ReadCoils(100, 1, 1);
}
}
public bool[] ReadCoils(byte slaveAddress, ushort startAddress, ushort numberOfPoints)
{
Log.Debug("GET ReadCoils: SlaveAddress {0}, StartAddress {1}, NumberOfPoints {2}", slaveAddress, startAddress, numberOfPoints);
try
{
var response = _master.ReadCoils(slaveAddress, startAddress, numberOfPoints);
Log.Debug("RESPONSE ReadCoils: {0}", String.Join(",", response));
return(response);
}
catch (Exception ex)
{
Log.Error(ex, "ERROR: ReadCoils: SlaveAddress {0}, StartAddress {1}, NumberOfPoints {2} - MSG: {3}", slaveAddress, startAddress, numberOfPoints, ex.Message);
throw ex;
}
}
public void NModbusSerialRtuSlave_BonusCharacter_VerifyTimeout()
{
using (SerialPort masterPort = ModbusMasterFixture.CreateAndOpenSerialPort(ModbusMasterFixture.DefaultMasterSerialPortName))
using (SerialPort slavePort = ModbusMasterFixture.CreateAndOpenSerialPort(ModbusMasterFixture.DefaultSlaveSerialPortName))
{
IModbusSerialMaster master = ModbusSerialMaster.CreateRtu(masterPort);
ModbusSerialSlave slave = ModbusSerialSlave.CreateRtu(1, slavePort);
slave.DataStore = DataStoreFactory.CreateTestDataStore();
Thread slaveThread = new Thread(slave.Listen);
slaveThread.IsBackground = true;
slaveThread.Start();
// assert successful communication
Assert.AreEqual(new bool[] { false, true }, master.ReadCoils(1, 1, 2));
// write "bonus" character
masterPort.Write("*");
// assert successful communication
Assert.AreEqual(new bool[] { false, true }, master.ReadCoils(1, 1, 2));
}
}
/// <summary>
/// 根据从站ID和地址读线圈状态
/// </summary>
/// <param name="master"></param>
/// <param name="slaveid"></param>
/// <param name="addr"></param>
/// <returns></returns>
public static bool ReadValue(IModbusSerialMaster master, byte slaveid, ushort addr)
{
return(master.ReadCoils(slaveid, addr, 1)[0]);
}
