Varec 8315 Series manual 20 L&J Scanner Ljscan, Command currently being sent to the gauge

8315 L&J Tankway Software Description TankGate Interface

4.20 L&J Scanner (LJSCAN)

The L&J Scanner point is used in conjunction with L&J Tank (LJ1000, LJ1500 and LJ2000) gauge points. This point provides dynamic and statistical data for the Model 8315 tank gauge interface module and L&J tank transmitters.

4.20.1Parameters

The database parameters used by the LJSCAN point are listed and described below:

Configuration	Function
Parameters
Module	Model 8215 module address
MaxRetry	Value between 1-10 indicating the number of times the scanner will
	attempt to poll a tank transmitter that has not responded. Default is 2.
Timeout	Value between 0-30000 indicating the number of milliseconds the
	scanner will wait for a response from a tank transmitter. Default is
	2000.
ScanDelay	Value between 0-30000 indicating the number of milliseconds the
	scanner will delay between each poll. Default is 500.
LevelConvert	Determines the units in which the level data will be displayed. F: feet, M:
	Meters m: Millimeters.
TempConvert	Determines the units in which the temperature data will be displayed. F:
	Fahrenheit, C: Celsius.
LevelFilter	Value used by LJ1000, LJ1500 and L2000 points for filtering level
	changes
TempFilter	Value used by LJ1000, LJ1500 and LJ2000 points for filtering
	temperature changes
HoldOff	Gauge down holdoff count. The HoldOff is used to reduce the number
	of scan requests issued to a gauge that is not responding.
ScanTimeout	Time value used to set an alarm bit in the PntStatus parameter of
	LJ1000, LJ1500 and LJ2000 points for gauges that are not responding or
	responding with errors.

Dynamic Parameters	Function
ID	Address of gauge currently being scanned
Cmd	Command currently being sent to the gauge
Pnt	Point currently being executed
NumRequests	Number of gauge polls since last reset
NumComErrors	Number of gauge polls which resulted in an error.

62 Installation and Operations Manual