public static Message CreatePresetMultipleRegistersCommand(SlaveAddress slaveAddress, HoldingRegisterAddress firstRegister, ushort[] desiredValues)
{
if (desiredValues == null)
{
throw new ArgumentNullException();
}
if (desiredValues.Length == 0)
{
throw new ArgumentException("Must write at least one register.");
}
if (desiredValues.Length > MaxUShortArrayLength)
{
throw new ArgumentException("Too many registers.");
}
var data = new List <byte>();
WriteSlaveAddress(data, slaveAddress);
WriteFunctionCode(data, FunctionCode.PresetMultipleRegisters);
WriteHoldingRegisterAddress(data, firstRegister);
WriteBigEndianUInt16(data, (ushort)desiredValues.Length);
WriteLengthPrefixedUShortArray(data, desiredValues);
return(CreateFromRaw(data));
}
public static Message CreateForceMultipleCoilsCommand(SlaveAddress slaveAddress, CoilAddress firstCoil, bool[] desiredStates)
{
if (desiredStates == null)
{
throw new ArgumentNullException();
}
if (desiredStates.Length == 0)
{
throw new ArgumentException("Must write at least one coil.");
}
if (desiredStates.Length > MaxBooleanArrayLength)
{
throw new ArgumentException("Too many coils.");
}
var data = new List <byte>();
WriteSlaveAddress(data, slaveAddress);
WriteFunctionCode(data, FunctionCode.ForceSingleCoil);
WriteCoilAddress(data, firstCoil);
WriteBigEndianUInt16(data, (ushort)desiredStates.Length);
WriteLengthPrefixedPackedBooleanArray(data, desiredStates);
return(CreateFromRaw(data));
}
internal ModbusControllerConnection(NModbus.Device.IModbusMaster master, SlaveAddress slave)
{
_master = master;
_slave = slave;
_slaveRaw = slave.WireValue;
_declarationSpace = new DeclarationSpace(this);
}
public ModbusControllerConnectionFactory(ModbusSerialProtocol protocol, SlaveAddress slave, string portName, int baudRate, Parity parity, int dataBits, StopBits stopBits)
{
_protocol = protocol;
_slave = slave;
_portName = portName;
_baudRate = baudRate;
_parity = parity;
_dataBits = dataBits;
_stopBits = stopBits;
}
public static Message CreatePresetSingleRegisterCommand(SlaveAddress slaveAddress, HoldingRegisterAddress register, ushort desiredValue)
{
var data = new List <byte>();
WriteSlaveAddress(data, slaveAddress);
WriteFunctionCode(data, FunctionCode.PresetSingleRegister);
WriteHoldingRegisterAddress(data, register);
WriteBigEndianUInt16(data, desiredValue);
return(CreateFromRaw(data));
}
public static Message CreateReadInputRegistersCommand(SlaveAddress slaveAddress, InputRegisterAddress firstRegister, ushort numberOfRegisters)
{
var data = new List <byte>();
WriteSlaveAddress(data, slaveAddress);
WriteFunctionCode(data, FunctionCode.ReadInputRegisters);
WriteInputRegisterAddress(data, firstRegister);
WriteBigEndianUInt16(data, numberOfRegisters);
return(CreateFromRaw(data));
}
public static Message CreateReadCoilStatusCommand(SlaveAddress slaveAddress, CoilAddress firstCoil, ushort numberOfCoils)
{
var data = new List <byte>();
WriteSlaveAddress(data, slaveAddress);
WriteFunctionCode(data, FunctionCode.ReadCoilStatus);
WriteCoilAddress(data, firstCoil);
WriteBigEndianUInt16(data, numberOfCoils);
return(CreateFromRaw(data));
}
public static Message CreateForceSingleCoilCommand(SlaveAddress slaveAddress, CoilAddress coil, bool desiredState)
{
var data = new List <byte>();
WriteSlaveAddress(data, slaveAddress);
WriteFunctionCode(data, FunctionCode.ForceSingleCoil);
WriteCoilAddress(data, coil);
const byte On = 0xff;
const byte Off = 0x00;
data.Add(desiredState ? On : Off);
data.Add(0x00);
return(CreateFromRaw(data));
}
private static void WriteSlaveAddress(List <byte> buffer, SlaveAddress address)
{
buffer.Add(address.WireValue);
}