private void button1_Click(object sender, EventArgs e)
{
byte unit_id = 1;
// Created datastore for unit ID 1
Datastore ds = new Datastore(unit_id);
// Crete instance of modbus serial RTU (replace COMx with a free serial port - ex. COM5)
ModbusSlaveSerial ms = new ModbusSlaveSerial(new Datastore[] { ds }, ModbusSerialType.RTU, "COM1", 9600, 8, Parity.Even, StopBits.One, Handshake.None);
// Start listen
ms.StartListen();
// Print and write some registers...
Random rnd = new Random();
while (true)
{
textBox1.Text = "Holding register n.1 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).HoldingRegisters[0].ToString("D5") +
"Holding register n.60 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).HoldingRegisters[59].ToString("D5") +
"Coil register n.32 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).Coils[31].ToString();
ms.ModbusDB.Single(x => x.UnitID == unit_id).HoldingRegisters[1] = (ushort)rnd.Next(ushort.MinValue, ushort.MaxValue);
textBox2.Text = "Holding register n.2 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).HoldingRegisters[1].ToString("D5");
ms.ModbusDB.Single(x => x.UnitID == unit_id).Coils[15] = Convert.ToBoolean(rnd.Next(0, 1));
textBox3.Text = "Coil register n.16 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).Coils[15].ToString();
// Exec the cicle each 2 seconds
delayTime(2);
}
}
/// <summary>
/// Test a modbus RTU slave
/// </summary>
static void Test_ModbusRTUSlave()
{
byte unit_id = 1;
// Created datastore for unit ID 1
Datastore ds = new Datastore(unit_id);
// Crete instance of modbus serial RTU (replace COMx with a free serial port - ex. COM5)
ModbusSlaveSerial ms = new ModbusSlaveSerial(new Datastore[] { ds }, ModbusSerialType.RTU, "COM1", 9600, 8, Parity.Even, StopBits.One, Handshake.None);
// Start listen
ms.StartListen();
// Print and write some registers...
Random rnd = new Random();
while (true)
{
Console.Write(
"---------------------- READING ----------------------" + Environment.NewLine +
"Holding register n.1 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).HoldingRegisters[0].ToString("D5") + Environment.NewLine +
"Holding register n.60 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).HoldingRegisters[59].ToString("D5") + Environment.NewLine +
"Coil register n.32 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).Coils[31].ToString() + Environment.NewLine +
"---------------------- WRITING ----------------------" + Environment.NewLine);
ms.ModbusDB.Single(x => x.UnitID == unit_id).HoldingRegisters[1] = (ushort)rnd.Next(ushort.MinValue, ushort.MaxValue);
Console.WriteLine(
"Holding register n.2 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).HoldingRegisters[1].ToString("D5"));
ms.ModbusDB.Single(x => x.UnitID == unit_id).Coils[15] = Convert.ToBoolean(rnd.Next(0, 1));
Console.WriteLine(
"Coil register n.16 : " + ms.ModbusDB.Single(x => x.UnitID == unit_id).Coils[15].ToString());
// Exec the cicle each 2 seconds
Thread.Sleep(2000);
}
}
/// <summary>
/// Test a modbus RTU slave
/// </summary>
static void Test_ModbusRTUSlave()
{
byte unit_id = 1; // MODBUS address of the slave
// Created datastore for unit ID 1.
// This "datastore" will be a MODBUS slave device with address 1.
Datastore ds = new Datastore(unit_id);
// Crete instance of modbus serial RTU (replace COMx with a valid serial port - ex. COM5).
ModbusSlaveSerial ms = new ModbusSlaveSerial(new Datastore[] { ds }, ModbusSerialType.RTU, "COM1", 9600, 8, Parity.Even, StopBits.One, Handshake.None);
// Start listening.
ms.StartListening();
// Generate a random number (used in the test).
Random rnd = new Random();
// Print and write some registers...
while (true)
{
// Print some nice formatting to the console.
Console.WriteLine("---------------------- READING ----------------------");
// Create MODBUS holding register 1.
ushort holdingReg1 = ms.ModbusDatabase.Single(x => x.UnitID == unit_id).HoldingRegisters[0];
// Print the output to the console.
Console.WriteLine("Holding register n.1 : " + holdingReg1.ToString("D5"));
// Create MODBUS holding register 60.
ushort holdingReg60 = ms.ModbusDatabase.Single(x => x.UnitID == unit_id).HoldingRegisters[59];
// Print the output to the console.
Console.WriteLine("Holding register n.60 : " + holdingReg60.ToString("D5"));
// Create MODBUS coil 32.
bool coil32 = ms.ModbusDatabase.Single(x => x.UnitID == unit_id).Coils[31];
// Print the output to the console.
Console.WriteLine("Coil register n.32 : " + coil32.ToString());
// Print some nice formatting to the console.
Console.WriteLine("---------------------- WRITING ----------------------");
// Do something (what?) to holding register 2.
ms.ModbusDatabase.Single(x => x.UnitID == unit_id).HoldingRegisters[1] = (ushort)rnd.Next(ushort.MinValue, ushort.MaxValue);
// Do something (what?) to holding register 2.
ushort holdingReg2 = ms.ModbusDatabase.Single(x => x.UnitID == unit_id).HoldingRegisters[1];
// Print the output to the console.
Console.WriteLine("Holding register n.2 : " + holdingReg2.ToString("D5"));
// Do something (what?) to coil 15.
ms.ModbusDatabase.Single(x => x.UnitID == unit_id).Coils[15] = Convert.ToBoolean(rnd.Next(0, 1));
// Do something (what?) to coil 15.
bool coil15 = ms.ModbusDatabase.Single(x => x.UnitID == unit_id).Coils[15];
// Print the output to the console.
Console.WriteLine("Coil register n.16 : " + coil15.ToString());
// Repeat every 2 seconds.
Thread.Sleep(2000);
}
}
