index.js

var Logger = require('./utils/logger');
var configurator = require('devjs-configurator');

var FunctionCode = require('./src/l4-functionCode');
var ModbusRTU = require('./src/modbusRTU');
var Scheduler = require('./src/scheduler');

var logger = new Logger( {moduleName: 'Driver', color: 'bgGreen'} );

//---------------------------------------------------------------------
configurator.configure("ModbusRTU",__dirname).then(function(data) {
	var options = data;

	var scheduler;
	var modbus;
	var functionCode;
	//Set loglevel
	global.GLOBAL.ModbusLogLevel = options.logLevel || 2;

	logger.info('Starting with options ' + JSON.stringify(options));

	options.serialInterfaceOptions.onPortClose = function() {
		modbus._state = false;
		if(scheduler) {
			scheduler.stop();
		}
	};

	options.serialInterfaceOptions.onPortReconstruct = function() {
		modbus._state = true;
		if(scheduler) {
			scheduler.start(modbus, functionCode);
		}
	};

	function startModbus() {
		functionCode = new FunctionCode();
		functionCode.start(options).then(function() {

			modbus = new ModbusRTU(options.modbusResourceId || "ModbusDriver");
			scheduler = new Scheduler(options);

			scheduler.start(modbus, functionCode);
			modbus.start({
				fc: functionCode,
				resourceTypesDirectory: options.supportedResourceTypesDirectory || "controllers/supportedResourceTypes",
				runtimeDirectory: options.runtimeResourceTypesDirectory || "controllers/runtimeResourceTypes",
				scheduler: scheduler,
				siodev: options.serialInterfaceOptions.siodev,
				relayId: options.relayId
			}).then(function() {
				logger.info('Modbus RTU controller started successfully with ID ' + options.modbusResourceId);
				//Instantiate available resource types
				modbus.commands.startAll().then(function() {
					logger.info('Started device controller on all supported resource types');
					modbus._state = true;
				}, function(err) {
					logger.error('Failed to start device controllers ' + JSON.stringify(err) + err);
				});
			}, function(err) {
				logger.error('Could not start modbus controller ' + (err.stack || JSON.stringify(err)));
				if(err.status == 500) {
					logger.error('Check the modbusResourceId in config.json, we already have one controller running with the specified id. Change the id and try again!');
				}
			});
		});
	}

	startModbus();
}, function(err) {
    logger.error('Unable to load ModbusRTU config.json, ' + err);
    return;
});