/// <summary>
/// Test modbus RTU master function on a slave RTU id = 5
/// </summary>
private static void Test_ModbusRTUMaster()
{
byte unit_id = 5;
// Create instance of modbus serial RTU (replace COMx with a free serial port - ex. COM5).
ModbusMasterSerial mm = new ModbusMasterSerial(ModbusSerialType.RTU, "COM20", 9600, 8, Parity.Even, StopBits.One, Handshake.None);
// Initialize the MODBUS connection.
mm.Connect();
// Read and write some registers on RTU n. 5.
Random rnd = new Random();
while (true)
{
// Print some nice formatting to the console.
Console.WriteLine("---------------------- READING ----------------------");
// Read from a register.
ushort inputReg1 = mm.ReadHoldingRegisters(unit_id, 0, 1).First();
// Print the result to the console.
Console.WriteLine("Holding register n.1 : " + inputReg1.ToString("D5"));
// Read from another register.
ushort inputReg41 = mm.ReadInputRegisters(unit_id, 40, 1).First();
// Print the result to the console.
Console.WriteLine("Input register n.41 : " + inputReg41.ToString("D5"));
// Read from a coil.
bool coil23 = mm.ReadCoils(unit_id, 22, 1).First();
// Print the results to the console.
Console.WriteLine("Coil register n 23 : " + coil23.ToString());
// Print some nice formatting to the console.
Console.WriteLine("---------------------- WRITING ----------------------");
// Write to a register.
mm.WriteSingleRegister(unit_id, 4, (ushort)rnd.Next(ushort.MinValue, ushort.MaxValue));
// ...then read it back.
ushort holdingReg4 = mm.ReadHoldingRegisters(unit_id, 4, 1).First();
// Print the result to the console.
Console.WriteLine("Holding register n.5 : " + holdingReg4.ToString("D5") + Environment.NewLine);
// Write to another register.
mm.WriteSingleCoil(unit_id, 2, Convert.ToBoolean(rnd.Next(0, 1)));
// ...then read it back.
bool holdingReg3 = mm.ReadCoils(unit_id, 2, 1).First();
// Print the result to the console.
Console.WriteLine("Coil register n.3 : " + holdingReg3.ToString() + Environment.NewLine);
// Repeat every 2 seconds.
Thread.Sleep(2000);
}
}
/// <summary>
/// Test modbus RTU master function on a slave RTU id = 5
/// </summary>
static void Test_ModbusRTUMaster()
{
byte unit_id = 5;
// Crete instance of modbus serial RTU (replace COMx with a free serial port - ex. COM5)
ModbusMasterSerial mm = new ModbusMasterSerial(ModbusSerialType.RTU, "COM1", 9600, 8, Parity.Even, StopBits.One, Handshake.None);
// Exec the connection
mm.Connect();
// Read and write some registers on RTU n. 5
Random rnd = new Random();
while (true)
{
Console.Write(
"---------------------- READING ----------------------" + Environment.NewLine +
"Holding register n.1 : " + mm.ReadHoldingRegisters(unit_id, 0, 1).First().ToString("D5") + Environment.NewLine +
"Input register n.41 : " + mm.ReadInputRegisters(unit_id, 40, 1).First().ToString("D5") + Environment.NewLine +
"Coil register n 23 : " + mm.ReadCoils(unit_id, 22, 1).First().ToString() + Environment.NewLine +
"---------------------- WRITING ----------------------" + Environment.NewLine);
mm.WriteSingleRegister(unit_id, 4, (ushort)rnd.Next(ushort.MinValue, ushort.MaxValue));
Console.WriteLine(
"Holding register n.5 : " + mm.ReadHoldingRegisters(unit_id, 4, 1).First().ToString("D5") + Environment.NewLine);
mm.WriteSingleCoil(unit_id, 2, Convert.ToBoolean(rnd.Next(0, 1)));
Console.WriteLine(
"Coil register n.3 : " + mm.ReadCoils(unit_id, 2, 1).First().ToString() + Environment.NewLine);
// Exec the cicle each 2 seconds
Thread.Sleep(2000);
}
}
private void button1_Click(object sender, EventArgs e)
{
byte unit_id = 1;
// Crete instance of modbus serial RTU (replace COMx with a free serial port - ex. COM5)
ModbusMasterSerial mm = new ModbusMasterSerial(ModbusSerialType.RTU, "COM1", 9600, 8, Parity.Even, StopBits.One, Handshake.None);
// Exec the connection
mm.Connect();
// Read and write some registers on RTU n. 5
Random rnd = new Random();
while (true)
{
textBox1.Text = "Holding register n.1 : " + mm.ReadHoldingRegisters(unit_id, 0, 1).First().ToString("D5") +
"Input register n.41 : " + mm.ReadInputRegisters(unit_id, 40, 1).First().ToString("D5") +
"Coil register n 23 : " + mm.ReadCoils(unit_id, 22, 1).First().ToString();
mm.WriteSingleRegister(unit_id, 4, (ushort)rnd.Next(ushort.MinValue, ushort.MaxValue));
textBox2.Text = "Holding register n.5 : " + mm.ReadHoldingRegisters(unit_id, 4, 1).First().ToString("D5");
mm.WriteSingleCoil(unit_id, 2, Convert.ToBoolean(rnd.Next(0, 1)));
textBox3.Text = "Coil register n.3 : " + mm.ReadCoils(unit_id, 2, 1).First().ToString();
// Exec the cicle each 2 seconds
Thread.Sleep(2000);
}
}
/// <summary>
/// Read Holding Registers.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ButtonHoldingRegisterRead_Click(object sender, EventArgs e)
{
try
{
// Get the selected device address.
byte slaveAddr = GetDeviceAddress();
// If the register address text box is empty...
if (string.IsNullOrWhiteSpace(textBoxHoldingRegisterAddressDecimal.Text))
{
// Convert from hex.
TextBoxHoldingRegisterAddressHex_Leave(null, null);
}
// Get the selected register address.
ushort regAddr = GetRegisterAddress(textBoxHoldingRegisterAddressDecimal.Text);
// Get the selected data format.
DataType dataType = GetDataFormat(comboBoxHoldingRegisterFormat);
// Calculate the number of registers to read.
ushort numRegs = 2;
if (dataType == DataType.String)
{
numRegs = GetNumRegisters(textBoxHoldingRegisterStringLength.Text);
}
// Read from the device.
ushort[] regValues = _mbMaster.ReadHoldingRegisters(slaveAddr, regAddr, numRegs);
// Format and display the data.
textBoxHoldingRegisterData.Text = RegistersToString(dataType, regValues);
// Update the status.
toolStripStatusLabel1.Text = "Holding Register Read Successfully";
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().Name.ToString());
}
}
private void readModbus()
{
try
{
ushort[] regs;
regs = mm.ReadHoldingRegisters(1, 0, MB_REGS);
commStatus.Text = "COMM OK";
if ((regs != null) && (regs.Length == MB_REGS))
{
switch (regs[MB_CAM_SELECT])
{
case CAM1:
selectCam1.Checked = true;
break;
case CAM2:
selectCam2.Checked = true;
break;
case CAM3:
selectCam3.Checked = true;
break;
}
switch (regs[MB_CAM1_SWITCH])
{
case SWITCH_OFF:
cam1Off.Checked = true;
break;
case SWITCH_ON:
cam1On.Checked = true;
break;
case SWITCH_AUTO:
cam1Auto.Checked = true;
break;
}
switch (regs[MB_CAM2_SWITCH])
{
case SWITCH_OFF:
cam2Off.Checked = true;
break;
case SWITCH_ON:
cam2On.Checked = true;
break;
case SWITCH_AUTO:
cam2Auto.Checked = true;
break;
}
switch (regs[MB_CAM3_SWITCH])
{
case SWITCH_OFF:
cam3Off.Checked = true;
break;
case SWITCH_ON:
cam3On.Checked = true;
break;
case SWITCH_AUTO:
cam3Auto.Checked = true;
break;
}
if (regs[MB_RAIN_RLTYPE] == NORMALLY_OPEN)
{
noRainToolStripMenuItem.Checked = true;
ncRainToolStripMenuItem.Checked = false;
}
else
{
noRainToolStripMenuItem.Checked = false;
ncRainToolStripMenuItem.Checked = true;
}
if (regs[MB_NIGHT_RLTYPE] == NORMALLY_OPEN)
{
noNightToolStripMenuItem.Checked = true;
ncNightToolStripMenuItem.Checked = false;
}
else
{
noNightToolStripMenuItem.Checked = false;
ncNightToolStripMenuItem.Checked = true;
}
if (regs[MB_CAM1_STATUS] == 1)
{
cam1Status.Text = "on";
cam1Status.BackColor = COLOR_ON;
}
else
{
cam1Status.Text = "off";
cam1Status.BackColor = COLOR_OFF;
}
if (regs[MB_CAM2_STATUS] == 1)
{
cam2Status.Text = "on";
cam2Status.BackColor = COLOR_ON;
}
else
{
cam2Status.Text = "off";
cam2Status.BackColor = COLOR_OFF;
}
if (regs[MB_CAM3_STATUS] == 1)
{
cam3Status.Text = "on";
cam3Status.BackColor = COLOR_ON;
}
else
{
cam3Status.Text = "off";
cam3Status.BackColor = COLOR_OFF;
}
if (regs[MB_NIGHT_SENSOR] == 1)
{
sensorNight.Text = "Nighttime";
}
else
{
sensorNight.Text = "Daytime";
}
if (regs[MB_RAIN_SENSOR] == 1)
{
sensorRain.Text = "Not Raining";
}
else
{
sensorRain.Text = "Raining";
}
}
}
catch (Exception) { }
{
commStatus.Text = "COMM ERR";
reconnect();
}
}
public void ModbusRTUMaster_ReadRegister(byte unit_id)
{
//problem
//1.ReadHoldingRegisters after ReadInputRegisters,then the receive data will change
//===================//
//==Read Input resister
//===================//
//ushort[] InputReg_array = mm.ReadInputRegisters(unit_id, REG_INPUT_START, REG_INPUT_NREGS);
//if (InputReg_array == null)
//{
// Err_State = (UInt16)eErrorSate.RECEIVE_NULL;
// return;
//}
//else if (InputReg_array.Length != REG_INPUT_NREGS)//stanley
//{
// Err_State = (UInt16)eErrorSate.RECEIVE_LENGTH;
// return;
//}
//int i = 0;
//for (i = 0; i < DEF_MAX_AXIS; i++)
//{
// PosVal[i] = InputReg_array[i];
// VelValue[i] = InputReg_array[i + DEF_MAX_AXIS];
//}
//Err_State = InputReg_array[7 + 7];
//TargetPosX = Convert.ToInt16(num_array[7 + 7 + 1]);
//TargetPosY = Convert.ToInt16(num_array[7 + 7 + 2]);
//TargetPosZ = Convert.ToInt16(num_array[7 + 7 + 3]);
//OPMode = Convert.ToInt16(num_array[7 + 7 + 4]);
//SpeedRatio = Convert.ToInt16(num_array[7 + 7 + 5]);
//Console.Write("addr999=0x" + num_array[0].ToString("x") + " " +
// "addr1000=0x" + num_array[1].ToString("x") + " " +
// "addr1001=0x" + num_array[2].ToString("x") + " " +
// "addr1002=0x" + num_array[3].ToString("x") + Environment.NewLine);
//Thread.Sleep(100);
//========================//
//==Read Holding resister=//
//========================//
ushort[] HoldReg_array = mm.ReadHoldingRegisters(unit_id, REG_HOLDING_START, REG_HOLDING_NREGS); //ReadInputRegisters 執行完直接再Read會出錯
if (HoldReg_array == null)
{
Err_State = (UInt16)eErrorSate.RECEIVE_NULL;
return;
}
else if (HoldReg_array.Length != REG_HOLDING_NREGS) //stanley
{
Err_State = (UInt16)eErrorSate.RECEIVE_LENGTH;
return;
}
TargetPosX = Convert.ToInt16(HoldReg_array[0]);
TargetPosY = Convert.ToInt16(HoldReg_array[1]);
TargetPosZ = Convert.ToInt16(HoldReg_array[2]);
OPMode = Convert.ToInt16(HoldReg_array[3]);
SpeedRatio = TwoUshortToFloat(HoldReg_array[4], HoldReg_array[5]);
for (byte i = 0; i < DEF_MAX_AXIS; i++)
{
//TarPos[i] = HoldReg_array[6 + i];
PosVal[i] = HoldReg_array[Convert.ToUInt16(eMbData.DEF_INX_POSVAL1 + i)];
}
Err_State = HoldReg_array[27];
}