public static bool communicateModbus(int comType, int slaveID, int addr, string value)
{
// 1 - Read coil | 2 - Write coil | 3 - Write Register
switch (comType)
{
case 1:
{
byte[] dest = new byte[1] {
0
};
WrapperModbus.lib_modbus_read_bits(slaveID, addr, 1, dest);
if (dest[0] == 1)
{
return(true);
}
else
{
return(false);
}
}
case 2:
{
byte[] dest = new byte[1] {
0
};
if (value == "true")
{
dest[0] = 1;
}
else
{
dest[0] = 0;
}
WrapperModbus.lib_modbus_write_bits(slaveID, addr, 1, dest);
return(true);
}
case 3:
{
ushort[] dest = new ushort[1] {
0
};
dest[0] = ushort.Parse(value);
WrapperModbus.lib_modbus_write_registers(slaveID, addr, 1, dest);
return(true);
}
default:
MessageBox.Show("Error : Modbus fonction miss-used");
return(false);
}
}
public static bool disconnectModbus(string IP, string Port)
{
int result;
result = WrapperModbus.lib_modbus_deconnect();
if (result == 0)
{
Global.modbusConnection_status = false;
MessageBox.Show("Modbus communication disconnected");
return(true);
}
else
{
MessageBox.Show("Failed to disconnect");
return(false);
}
}
// Modbus communication
public static bool connectModbus(string IP, string Port)
{
int result;
result = WrapperModbus.lib_modbus_connect(IP, Int16.Parse(Port));
if (result == 0)
{
Global.modbusConnection_status = true;
MessageBox.Show("Modbus communication with the runtime OK");
return(true);
}
else
{
MessageBox.Show("Modbus communication failed to connect");
return(false);
}
}