
Hardware
Tank Gate Interface
6
Installation and Operations Manual
Figure 2-2: The Tank Gate Interface Motherboard
Figure 2-3: Tank Gate Interface Functional Block Diagram
EARTH
NEUTRAL
LINE
SURGE GND
A/TXD
B/RXD
GND
RTS
CTS
TXD
RXD
GND
+15V
+5V
GND
-15V
+
-
VFIELD
COM1
COM 0
AUX POWER
VFIELD=48V
VFIELD=24V
RESET
RS232
RS485
COM1
HARDWARE HANDSHAKING
A
B
COM 0
RS-232
128 K
256 k
uP
Serial 0
Serial 1
PROM
Tank Gauge
Interface Circuitry
NOVRAM
Summary of Contents for 8300 series
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Page 6: ...Tank Gate Interface iv Installation and Operations Manual ...
Page 14: ...Overview Tank Gate Interface 4 Installation and Operations Manual ...
Page 50: ...Software Description Tank Gate Interface 40 Installation and Operations Manual ...
Page 52: ...Dual RS 485 MODBUS Software Blocks Tank Gate Interface 42 Installation and Operations Manual ...
Page 56: ...Tank Gate Interface 46 Installation and Operations Manual ...
Page 68: ...Tank Gate Interface 58 Installation and Operations Manual ...
Page 100: ...Tank Gate Interface 90 Installation and Operations Manual ...
Page 112: ...Tank Gate Interface 102 Installation and Operations Manual ...
Page 115: ...8303 Installation Varec Inc 105 s Figure 7 2 Tank Gate Interface Dimensions 197 204 125 ...
Page 148: ...Appendix Order Codes Tank Gate Interface 138 Installation and Operations Manual ...
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