LectroCount® LCR®600

You should connect to LCR600 with RS-232. Won't work with Serial TTL Voltage level

List of event names:

• data emitted when received data from LCR 600 is succesfully parsed
• failed emitted when received data from LCR 600 cant be parsed, only contains LCR return code to troubleshoot
• switch emitted when LCR 600 switch position is changed
• field name emitted when value from number data type is changed. example of field names: GrossQty_NE, NetQty_NE, etc

Installation

npm install lcr600

Usage

const lcr600 = require('lcr600');
const LCR600 = new lcr600({
		hostAddress: 0xff,
		LCRNodeAddress: 0x01,
		port: "/dev/ttyUSB0",
		baud: 19200,
		debug: true
	});

Configuration

|Field||Default|Description| |---|---|---|---| |hostAddress|Optional|0xff|Host address| |LCRNodeAddress|Optional|0x00|LCR Node Address| |port|Mandatory|-|Port used to communicate with LCR600| |baud|Optional|19200|LCR600 Baud Rate| |debug|Optional|false|Debugging Serial Communication|

Example

const config = {
	hostAddress: 0xff, // if this field is left empty, would be default to 0xff
	LCRNodeAddress: 0x01, // LCR address device used
	port: "/dev/ttyUSB0", // COM port where device is connected
	baud: 19200, // default baud rate for LCR 600
	debug: true // optional. Default to false
};

const lcr600 = require('lcr600');
const LCR600 = new lcr600(config, config.debug);

// listener for each summary
LCR600.on('GrossCount_NE', received => {
	const data = {
			...received,
			attributes: {
				unitId: LCR600.getAttribute('UnitID_UL'),
				meterId: LCR600.getAttribute('MeterID_WM'),
				qtyUnit: LCR600.getAttribute('QtyUnits_WM'),
			},
		};

	console.dir(data, {depth:4});
	console.log('---------------------------------------');
});

// successfully parsing data
LCR600.on('data', (received) => {
	console.log('data:', received);
	console.log('---------------------------------------');
});

// failed when parsing data, only contains code for debugging purpose
LCR600.on('failed', received => {
	console.error('failed:', received);
	console.log('---------------------------------------');
});

// switch pos changed
LCR600.on('switch', received => {
	console.log('switch:', received);
	console.log('---------------------------------------');
});

(async() => {
	const interval = config.interval || 100;

	// connect to Serialport
	await LCR600.connect();

	// get Product Id and Set synchronization
	await LCR600.getProductID(true);

	// Set attributes data from LCR600
	await LCR600.requestAttribute('QtyUnits_WM');
	await LCR600.requestAttribute('UnitID_UL');
	await LCR600.requestAttribute('MeterID_WM');

	console.log('List set attributes:', LCR600.getAttribute());
	console.log('---------------------------------------');

	// use setTimeout instead of setInterval due to async
	const __loop = async () => {
		await LCR600.getData('GrossCount_NE');
		setTimeout(__loop, interval);
	};

	// start infinite loop
	__loop();

})();

FIELDS

|Field Name|Field Number|Type| |---|---|---| |ProductNumber_DL|0|LIST+0| |ProductCode_DL|1|TEXT| |GrossQty_NE|2|VOLUME| |NetQty_NE|3|VOLUME| |FlowRate_NE|4|VOLUME| |ProductDescriptor_DL|11|TEXT| |ShiftGross_NE|13|VOLUME| |ShiftNet_NE|14|VOLUME| |GrossTotal_WM|17|VOLUME| |NetTotal_WM|18|VOLUME| |UnitID_UL|24|TEXT| |Temp_WM|33|SFLOAT| |TempOffset_WM|34|SFLOAT| |TempScale_WM|35|LIST+10| |MeterID_WM|36|TEXT| |QtyUnits_WM|38|LIST+4| |Decimals_WM|39|LIST+14| |FlowDirection_WM|40|LIST+21| |TimeUnit_WM|41|LIST+11| |CalibrationEvent_NE|42|LONG| |ConfigurationEvent_NE|43|LONG| |GrossCount_NE|44|VOLUME| |NetCount_NE|45|VOLUME| |AvgFlowRate|126|VOLUME| |CompFlowRate|127|VOLUME|

LIST TYPES

LIST+4

|Number|Description| |---|---| |1|LITRE| |2|CUBIC METER| |3|POUND| |4|KILOGRAM| |5|BARREL| |6|(empty)|

LIST+10

|Number|Description| |---|---| |0|°C| |1|°F|

LIST+11

|Number|Description| |---|---| |0|PER SECOND| |1|PER MINUTE| |2|PER HOUR|

LIST+14

|Number|Description| |---|---| |0|2 Digits| |1|1 Digit| |2|0 Digit|

LIST+21

|Number|Description| |---|---| |0|RIGHT| |1|LEFT|