EasyModbusTCP/UDP/RTU .java Wiki
Modbus TCP, Modbus UDP and Modbus RTU client/server Java library
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package run;
import de.re.easymodbus.server.*;
public class run {
public static void main(String[] args)
{
ModbusServer modbusServer = new ModbusServer();
modbusServer.setPort(1522);//Note that Standard Port for Modbus TCP communication is 502
modbusServer.coils[1] = true;
modbusServer.holdingRegisters[1] = 1234;
try
{
modbusServer.Listen();
}
catch (java.io.IOException | Exceptions.ModbusException e)
{
}
}
}