Varec 8300 series, Installation And Operation Manual, Page: 12 / 150

Overview Tank Gate Interface
2 Installation and Operations Manual
1.3 Applications
The 8300 series Tank Gate Interface is ideally suited for Tank Farm, Terminal, Pipeline and
Refinery applications. It is an effective solution used in SCADA applications.
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Level, temperature, pressure, flow, local indication, and alarms
1.4 Specifications
1.4.1 System Design
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16-bit processor with optional intelligent communication modules
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Intelligent field device communications
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128K bytes Non-Volatile Database Memory
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Serial RS-232
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Visual indication - 4 LEDs on main board indicate power and status
1.4.2 Software Functionality
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Tank gauge scanning - Data acquisition of measured values from connected tank gauges/
transmitters
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Service & diagnostics*
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Gauge diagnostics
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Read level, temperature and status data from gauge/transmitter
1.4.3 Host Communication
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Host comm. ports - 2
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Comm. type:
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COM 0: RS-232C
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COM 1: RS-232C or RS485
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Baud Rate - selectable baud rate depending on equipment parameters
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Protocol - Modbus™ RTU protocol
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Mode - RTU mode, master and slave
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Media access - Master/Slave
1.4.4 Modbus Functionality
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Modbus™ commands - 3, 4, 5, 6, 15, 16
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Modbus™ mapping - Configurable
1.4.5 Power Supply
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Supply 100...240 Vac, 50/60 Hz
1.4.6 Power consumption
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50 VA max (500 mA)