Varec 8315 Series manual LED Displays under Abnormal Conditions, Using the TankGate Push-buttons

Troubleshooting TankGate Interface

by observing the RUN Indicator duty cycle. Under normal conditions, this indicator flashes once every second.

7.2.1.2Communications indicator

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.

7.2.1.3TXD/RXD LEDs

When these LEDs are flashing, the system is exchanging data between the TankGate and any tank gauge.

7.2.2LED 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.

Indicator	Condition	Cause	Solution
Run	Does not flash	Bad database	Perform Hard Reset then reload
	(even after hard	Bad main circuit	database
	reset)	board	Replace main circuit board
	Steady ON/OFF	system failure
Communication	Steady state	DIP switch	Check unit ID DIP switch
		setting	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	Check for bad communication
		communications	line, modem board or main
			circuit board
		wrong jumper	Check SW1 & SW2 for proper
		settings	settings

7.2.3Using the TankGate Push-buttons

7.2.3.1Reinitializing 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

98 Installation and Operations Manual