Varec TankGate Interface 8315 Series User Manual

Page 54

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Tank Gate Interface

44

Installation and Operations Manual

Maxtime

Specifies the maximum time (in secs) between automatic Change of

State data being sent to the Host in response to a Change of State

Request. Report must be set to either Low or High for the Value

parameter to be sent in response to a Change of State Request. A value

of 0 disables this option. Non-zero values cause responses to be sent

even if the value has not changed since the last message. The

maximum is 255 seconds. The default is 240.

Watchdog

Enables the watchdog task on the Motherboard. The watchdog task

monitors the LJ1000 point on the Model 8215 and verifies it is

scanning for gauges. If the Model 8215 fails, the 0x4000 and the

0x0010 bits of the PntStatus will be set to indicate the failure.

Dynamic Parameters

Function

Level

Floating point value representing the tank level (in feet).

Temp

Floating point value representing the tank temperature (in Fahrenheit).

PntStatus

Integer HEX value indicating status of point. Values are:
0x0001: Dual Band Error
0x0002: Scan Timeout
0x0004: Internal Module Error
0x0008: Missing Comm Board
0x0010: Gauge Not Responding
0x0020: Blown Transmit Fuse
0x0040: Parity Error
0x0080: Tankway Error
0x4000: Failure of the Model 8215. This bit is set if the Watchdog task

on the Motherboard determines that the Model 8215 has stopped

updating.

GaugeStatus

Byte value indicating status of the gauge. Values are:
0x01: Dual Band Error
0x02: Temperature value is positive
0x04: Transmitter Error
0x08: Missing Comm Board

AlarmTime

Time that alarm first occurred. The point is in alarm when the

PntStatus is non zero.

Elapse

Time of the last scan.

ScanTime

Time of the last good reading. A reading is considered good if it has no

parity or time-out error, and has passed the filter criteria.

Raw1

Raw data from gauge. Value reported as hexadecimal value.

Raw2

Raw data from gauge. Value reported as hexadecimal value.

Configuration Parameters

Function

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