Example: server

Examples - server

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ModbusTCP Server

// create an empty modbus client
var ModbusRTU = require("modbus-serial");
var vector = {
  getInputRegister: function(addr, unitID) { return addr; },
  getHoldingRegister: function(addr, unitID) { return addr + 8000; },
  getCoil: function(addr, unitID) { return (addr % 2) === 0; },
  setRegister: function(addr, value, unitID) { console.log('set register', addr, value, unitID); return; },
  setCoil: function(addr, value, unitID) { console.log('set coil', addr, value, unitID); return; }
};

// set the server to answer for modbus requests
console.log('ModbusTCP listening on modbus://0.0.0.0:502');
var serverTCP = new ModbusRTU.ServerTCP(vector, {host: '0.0.0.0'});