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Troubleshooting

TankGate Interface

98 

Installation and Operations Manual

by observing the RUN Indicator duty cycle. Under normal conditions, this indicator 

flashes once every second.

The Communications indicator provides communication line status. When it is toggling, 

the system is exchanging data. As the system receives a valid message from the Host, 

this indicator toggles. If the indicator is idle, the system is off-line.

When these LEDs are flashing, the system is exchanging data between the TankGate and 

any tank gauge.

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.

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 

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