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