2 led displays under abnormal conditions, 3 using the tank gate interface push-buttons – Varec TankGate Interface 8315 Series User Manual

Page 102

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Troubleshooting

Tank Gate Interface

92

Installation and Operations Manual

8.2.2

LED Displays under Abnormal Conditions

The table below lists the abnormal conditions of the four indicator lights. From this table the

user should be able to pinpoint the cause and derive a solution to the problem.

8.2.3

Using the Tank Gate Interface Push-buttons

Reinitializing System Hardware

To reinitialize the system hardware

Press the RESET Switch.

This action causes it to go to a known starting state. This switch may be pressed at any time;

however, the following will also occur:

Reinitialize System Hardware

Clear Working Memory

Reinitialize Data Base

Reset All Timers

Disable Outputs

Enable Communications

Present Sign-on Message to Diagnostic Terminal

Indicator

Condition

Cause

Solution

Run

Does not flash

(even after hard

reset)

Bad database
Bad main circuit

board

Perform Hard Reset then reload

database
Replace main circuit board

Steady ON/OFF

system failure

Communication

Steady state

DIP switch

setting

Check unit ID DIP switch

setting: set ID number and reset

system

COM point

Check COM point with

diagnostics terminal or ViewRTU

COM parameters

Verify time-out, baud, and

protocol parameters have the

correct values set

bad

communications

Check for bad communication

line, modem board or main

circuit board

wrong jumper

settings

Check SW1 & SW2 for proper

settings

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