private void ExecuteReadCommand(byte function)
{
_lastReadCommand = function;
try
{
var command = new ModbusCommand(function)
{
Offset = StartAddress, Count = DataLength, TransId = _transactionId++
};
var result = _driver.ExecuteGeneric(_portClient, command);
if (result.Status == CommResponse.Ack)
{
command.Data.CopyTo(_registerData, StartAddress);
UpdateDataTable();
AppendLog(String.Format("Read succeeded: Function code:{0}.", function));
}
else
{
AppendLog(String.Format("Failed to execute Read: Error code:{0}", result.Status));
}
}
catch (Exception ex)
{
AppendLog(ex.Message);
}
}
public CommResponse ExecuteReadCommand(byte function, ushort StartAddress, ushort DataLength)
{
CommResponse result = null;
try
{
var command = new ModbusCommand(function)
{
Offset = StartAddress,
Count = DataLength,
TransId = _transactionId++
};
result = _driver.ExecuteGeneric(_portClient, command);
if (result.Status == CommResponse.Ack)
{
//UInt16[] Data = new ushort[command.Data.Length];
//command.Data.CopyTo(Data, StartAddress);
//foreach (var item in Data)
//{
// Console.WriteLine(item);
//}
Console.WriteLine($"Read succeeded: Function code:{function} {_transactionId}");
}
else
{
Console.WriteLine(String.Format("Failed to execute Read: Error code:{0}", result.Status));
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return(result);
}
public override bool ExecuteWrite(int offset)
{
FuncWriteMultipleRegisters.Offset = offset;
FuncWriteMultipleRegisters.Count = GetCountRegsByTagOffset(offset);
FuncWriteMultipleRegisters.Data = new ushort[FuncWriteMultipleRegisters.Count];
adapter.Write(FuncWriteMultipleRegisters, ref RegistersData);
CommResponse Response = driver.ExecuteGeneric(medium, FuncWriteMultipleRegisters);
return(Response.Status == CommResponse.Ack);
}
private ushort[] GetTagsValueMax(ValueType aValueType, int aStartAddress, int aTagCount)
{
byte function;
int ModbusCount = 0;
if (aValueType.Equals(ValueType.Bool))
{
function = ModbusCommand.FuncReadCoils;
ModbusCount = aTagCount;
}
else
{
function = ModbusCommand.FuncReadMultipleRegisters;
ModbusCount = aTagCount * 2;
}
var data = new ushort[ModbusCount];
var command = new ModbusCommand(function)
{
Offset = aStartAddress, Count = ModbusCount, TransId = _transactionId++
};
var result = _driver.ExecuteGeneric(_portClient, command);
if (result.Status == CommResponse.Ack)
{
command.Data.CopyTo(_registerData, aStartAddress);
for (int i = 0; i < ModbusCount; i++)
{
var index = aStartAddress + i;
if (index >= _registerData.Length)
{
break;
}
data[i] = _registerData[index];
}
Console.WriteLine(String.Format("Read succeeded: Function code:{0}.", function));
}
else
{
Console.WriteLine(String.Format("Failed to execute Read: Error code:{0}", result.Status));
}
return(data);
}
public static void Main()
{
#if MASTER_TCP || MASTER_UDP || SLAVE_TCP || SLAVE_UDP
//setup the board IP
NetworkInterface.GetAllNetworkInterfaces()[0]
.EnableStaticIP("192.168.0.99", "255.255.255.0", "192.168.0.1");
string localip = NetworkInterface.GetAllNetworkInterfaces()[0]
.IPAddress;
Debug.Print("The local IP address of your Netduino Plus is " + localip);
//define coils, inputs, and analogs
_inputs = new InputPort[8];
_coils = new OutputPort[6];
_analogs = new AnalogInput[6];
_inputs[0] = new InputPort(Pins.GPIO_PIN_D0, true, Port.ResistorMode.PullUp);
_inputs[1] = new InputPort(Pins.GPIO_PIN_D1, true, Port.ResistorMode.PullUp);
_inputs[2] = new InputPort(Pins.GPIO_PIN_D2, true, Port.ResistorMode.PullUp);
_inputs[3] = new InputPort(Pins.GPIO_PIN_D3, true, Port.ResistorMode.PullUp);
_inputs[4] = new InputPort(Pins.GPIO_PIN_D4, true, Port.ResistorMode.PullUp);
_inputs[5] = new InputPort(Pins.GPIO_PIN_D5, true, Port.ResistorMode.PullUp);
_inputs[6] = new InputPort(Pins.GPIO_PIN_D6, true, Port.ResistorMode.PullUp);
_inputs[7] = new InputPort(Pins.GPIO_PIN_D7, true, Port.ResistorMode.PullUp);
_coils[0] = new OutputPort(Pins.GPIO_PIN_D8, false);
_coils[1] = new OutputPort(Pins.GPIO_PIN_D9, false);
_coils[2] = new OutputPort(Pins.GPIO_PIN_D10, false);
_coils[3] = new OutputPort(Pins.GPIO_PIN_D11, false);
_coils[4] = new OutputPort(Pins.GPIO_PIN_D12, false);
_coils[5] = new OutputPort(Pins.GPIO_PIN_D13, false);
_analogs[0] = new AnalogInput(Pins.GPIO_PIN_A0);
_analogs[1] = new AnalogInput(Pins.GPIO_PIN_A1);
_analogs[2] = new AnalogInput(Pins.GPIO_PIN_A2);
_analogs[3] = new AnalogInput(Pins.GPIO_PIN_A3);
_analogs[4] = new AnalogInput(Pins.GPIO_PIN_A4);
_analogs[5] = new AnalogInput(Pins.GPIO_PIN_A5);
#else
//define coils, inputs, and analogs
_inputs = new InputPort[4];
_coils = new OutputPort[6];
_analogs = new AnalogInput[6];
_inputs[0] = new InputPort(Pins.GPIO_PIN_D4, true, Port.ResistorMode.PullUp);
_inputs[1] = new InputPort(Pins.GPIO_PIN_D5, true, Port.ResistorMode.PullUp);
_inputs[2] = new InputPort(Pins.GPIO_PIN_D6, true, Port.ResistorMode.PullUp);
_inputs[3] = new InputPort(Pins.GPIO_PIN_D7, true, Port.ResistorMode.PullUp);
_coils[0] = new OutputPort(Pins.GPIO_PIN_D8, false);
_coils[1] = new OutputPort(Pins.GPIO_PIN_D9, false);
_coils[2] = new OutputPort(Pins.GPIO_PIN_D10, false);
_coils[3] = new OutputPort(Pins.GPIO_PIN_D11, false);
_coils[4] = new OutputPort(Pins.GPIO_PIN_D12, false);
_coils[5] = new OutputPort(Pins.GPIO_PIN_D13, false);
_analogs[0] = new AnalogInput(Pins.GPIO_PIN_A0);
_analogs[1] = new AnalogInput(Pins.GPIO_PIN_A1);
_analogs[2] = new AnalogInput(Pins.GPIO_PIN_A2);
_analogs[3] = new AnalogInput(Pins.GPIO_PIN_A3);
_analogs[4] = new AnalogInput(Pins.GPIO_PIN_A4);
_analogs[5] = new AnalogInput(Pins.GPIO_PIN_A5);
#endif
#if MASTER_TCP
//create a TCP socket
using (var socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
{
//refine the socket settings
socket.SetSocketOption(
SocketOptionLevel.Tcp,
SocketOptionName.NoDelay,
true
);
socket.SendTimeout = 2000;
socket.ReceiveTimeout = 2000;
//try the connection against the remote device
var remoteip = new byte[4] {
192, 168, 0, 60
};
var ipaddr = new IPAddress(remoteip);
var ept = new IPEndPoint(ipaddr, 502);
socket.Connect(ept);
//create a wrapper around the socket
ICommClient portClient = socket.GetClient();
//create a client driver
var driver = new ModbusClient(new ModbusTcpCodec());
driver.Address = 1;
while (true)
{
//compose the Modbus command to be submitted
var command = new ModbusCommand(ModbusCommand.FuncWriteMultipleRegisters);
command.Offset = 49;
command.Count = 4;
//attach the Netduino's input values as data
command.Data = new ushort[4];
for (int i = 0; i < 4; i++)
{
command.Data[i] = (ushort)(_inputs[i].Read() ? 0 : 1);
}
//execute the command synchronously
CommResponse result = driver
.ExecuteGeneric(portClient, command);
if (result.Status == CommResponse.Ack)
{
//command successfully
}
else
{
//some error
Debug.Print("Error=" + command.ExceptionCode);
}
//just a small delay
Thread.Sleep(1000);
}
}
#endif
#if MASTER_UDP
//create a UDP socket
using (var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
{
//try the connection against the remote device
var remoteip = new byte[4] {
192, 168, 0, 60
};
var ipaddr = new IPAddress(remoteip);
var ept = new IPEndPoint(ipaddr, 502);
socket.Connect(ept);
//create a wrapper around the socket
ICommClient portClient = socket.GetClient();
//create a client driver
var driver = new ModbusClient(new ModbusTcpCodec());
driver.Address = 1;
while (true)
{
//compose the Modbus command to be submitted
var command = new ModbusCommand(ModbusCommand.FuncReadMultipleRegisters);
command.Offset = 0;
command.Count = 16;
//execute the command synchronously
CommResponse result = driver
.ExecuteGeneric(portClient, command);
if (result.Status == CommResponse.Ack)
{
//command successfully
Debug.Print("Success!");
for (int i = 0; i < command.Count; i++)
{
Debug.Print("Reg#" + i + "=" + command.Data[i]);
}
}
else
{
//some error
Debug.Print("Error=" + command.ExceptionCode);
}
//just a small delay
Thread.Sleep(1000);
}
}
#endif
#if MASTER_RTU
//create an UART port
using (var uart = new SerialPort("COM2", 38400, Parity.Even, 8))
{
//open the serial port
uart.Open();
var prm = new SerialPortParams("38400,E,8,1");
//create a wrapper around the uart
ICommClient portClient = uart
.GetClient(prm);
//create a client driver
var driver = new ModbusClient(new ModbusRtuCodec());
driver.Address = 1;
while (true)
{
//compose the Modbus command to be submitted
var command = new ModbusCommand(ModbusCommand.FuncWriteMultipleRegisters);
command.Offset = 49;
command.Count = 4;
//attach the Netduino's input values as data
command.Data = new ushort[4];
for (int i = 0; i < 4; i++)
{
command.Data[i] = (ushort)(_inputs[i].Read() ? 0 : 1);
}
//execute the command synchronously
CommResponse result = driver
.ExecuteGeneric(portClient, command);
if (result.Status == CommResponse.Ack)
{
//command successfully
}
else
{
//some error
Debug.Print("Error=" + command.ExceptionCode);
}
//just a small delay
Thread.Sleep(1000);
}
}
#endif
#if SLAVE_RTU
//create an UART port
using (var uart = new SerialPort("COM2", 38400, Parity.Even, 8))
{
//open the serial port
uart.Open();
var prm = new SerialPortParams("38400,E,8,1");
//create a server driver
var server = new ModbusServer(new ModbusRtuCodec());
server.Address = 1;
//listen for an incoming request
var listener = uart.GetListener(server);
listener.ServeCommand += new ServeCommandHandler(listener_ServeCommand);
listener.Start();
Thread.Sleep(Timeout.Infinite);
}
#endif
#if SLAVE_TCP
//create a TCP socket
using (var socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
{
//place it as listener on the port 502 (standard Modbus)
var ept = new IPEndPoint(IPAddress.Any, 502);
socket.Bind(ept);
socket.Listen(10);
//create a server driver
var server = new ModbusServer(new ModbusTcpCodec());
server.Address = 1;
while (true)
{
//wait for an incoming connection
var listener = socket.GetTcpListener(server);
listener.ServeCommand += new ServeCommandHandler(listener_ServeCommand);
listener.Start();
Thread.Sleep(1);
}
}
#endif
#if SLAVE_UDP
//create a UDP socket
using (var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
{
//bind it to the port 502 (standard Modbus)
var ept = new IPEndPoint(IPAddress.Any, 502);
socket.Bind(ept);
//create a server driver
var server = new ModbusServer(new ModbusTcpCodec());
server.Address = 1;
//listen for an incoming request
var listener = socket.GetUdpListener(server);
listener.ServeCommand += new ServeCommandHandler(listener_ServeCommand);
listener.Start();
Thread.Sleep(Timeout.Infinite);
}
#endif
}
protected void RunCore(
ICommClient medium,
ModbusClient driver,
CancellationToken token)
{
Action <bool> setPollingActivity = act => HardwareModel.Instance.IsPollingEnabled = act;
int stage = 0;
while (token.IsCancellationRequested == false)
{
//turn the polling activity on
App.Current.Dispatcher.BeginInvoke(
setPollingActivity,
true);
if (stage == 0)
{
//compose the Modbus command to be submitted
var command = new ModbusCommand(ModbusCommand.FuncReadInputDiscretes);
command.Offset = 0;
command.Count = 8;
//execute the command synchronously
CommResponse result = driver
.ExecuteGeneric(medium, command);
if (result.Status == CommResponse.Ack)
{
//command successfully
for (int i = 0; i < command.Count; i++)
{
HardwareModel.Instance.Coils[i].Write(command.Data[i] != 0);
}
stage = 1;
}
else
{
//some error
Console.WriteLine("Status={0}; Error={1}", result.Status, command.ExceptionCode);
}
}
else if (stage == 1)
{
//compose the Modbus command to be submitted
var command = new ModbusCommand(ModbusCommand.FuncReadInputRegisters);
command.Offset = 0;
command.Count = 6;
//execute the command synchronously
CommResponse result = driver
.ExecuteGeneric(medium, command);
if (result.Status == CommResponse.Ack)
{
//command successfully
for (int i = 0; i < command.Count; i++)
{
HardwareModel.Instance.Analogs[i].Value = command.Data[i] / 1023.0;
}
stage = 2;
}
else
{
//some error
Console.WriteLine("Status={0}; Error={1}", result.Status, command.ExceptionCode);
}
}
else if (stage == 2)
{
//compose the Modbus command to be submitted
var command = new ModbusCommand(ModbusCommand.FuncForceMultipleCoils);
command.Offset = 0;
command.Count = 6;
//attach the Netduino's input values as data
command.Data = new ushort[command.Count];
for (int i = 0; i < command.Count; i++)
{
command.Data[i] = (ushort)(HardwareModel.Instance.Discretes[i].Read() ? 1 : 0);
}
//execute the command synchronously
CommResponse result = driver
.ExecuteGeneric(medium, command);
if (result.Status == CommResponse.Ack)
{
//command successfully
stage = 0;
}
else
{
//some error
Console.WriteLine("Status={0}; Error={1}", result.Status, command.ExceptionCode);
}
}
//turn the polling activity off
App.Current.Dispatcher.Invoke(
setPollingActivity,
false);
//just a small delay
Thread.Sleep(100);
}
}