Varec 8315 Series manual Switches and Indicators, Reset push-button SW3, Hard Reset

Hardware TankGate Interface

there is 230 mA of field power available. At +48VDC, there is 230 mA of field power available.

Figure 2-8: Selection Jumper W3
	EARTH
A B	NEUTRAL
	LINE
	SURGE GND
RS232	+	VFIELD	J7
COM1	-
	A/TXD
RS485	B/RXD		VFIELD=48V
	GND	COM1
	RTS
	CTS
	TXD		VFIELD=24V
	RXD	COM
		0
	GND		W3
	+15V	AUX
	+5V	POWER
	GND
	-15V
			J8

2.2.2Switches and Indicators

2.2.2.1Reset push-button (SW3)

The RESET Switch is used to re-initialize the system hardware by causing it to go to a known starting state. This switch may be pressed at any time; however, it will do the following:

•Re initialize System Hardware

•Clear Scratch Memory

•Verify Database and Re initialize if Invalid

•Reset All Timers

•Enable Communications

Figure 2-9: Switches SW3 on the TankGate motherboard

		EARTH
A	B	NEUTRAL
		LINE
		SURGE GND
	RS232	+	VFIELD	RESET
		-
	COM1
		A/TXD
	RS485	B/RXD
		GND	COM1
		RTS
		CTS
		TXD
		RXD	COM 0 AUX	SW3
		GND
		+15V
		+5V	POWER
		GND
		-15V

Hard Reset

A special form of Reset is available for occasions when the battery backed-up data base must be re initialized. This type of reset, the Hard Reset, can be performed before a database is downloaded from a host PC.

Caution! The Hard Reset should be used as a last resort if the TankGate is not functioning. A

Hard reset clears the installed database. For the Hard Reset procedure, refer to the

Troubleshooting and Maintenance chapter.

10 Installation and Operations Manual