Overview

TankGate Interface

 

 

1.4Specifications

1.4.1System Design

16-bit processor with optional intelligent communication modules

Intelligent field device communications

128K bytes Non-Volatile Database Memory

Serial RS-232 or RS-485

Visual indication - 4 LEDs on main board indicate power and status

1.4.2Software Functionality

Tank gauge scanning - Data acquisition of measured values from connected tank gauges/transmitters

Service & diagnostics*

Gauge diagnostics

Read level, temperature and status data from gauge/transmitter

1.4.3Host Communication

Host comm. ports - 1

Comm. type - Com #0: RS-232C

Baud Rate 9600 baud

Protocol - Modbus™ RTU protocol

Mode - RTU mode, master and slave

Media access - Master/Slave

RS-232 or RS-485 communications

RS-485 Maximum Cable Length (24 AWG), 4000 Feet

RS-485 Maximum Multi-dropped Units, 32

1.4.4Modbus Functionality

Modbus™ commands - 3, 4, 5, 6, 15, 16

Modbus™ mapping - Configurable

1.4.5Power Supply

Supply 100...240 Vac, 50/60 Hz

1.4.6Power consumption

50 VA max (500 mA)

1.4.7Surge protection

Gas Discharge Tubes (GDTs) and clamping diodes on all field inputs, power supply inputs and communications channels

1.4.8Operating temperature

-40...+185 °F (-40...+85 °C)

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Installation and Operations Manual

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Varec 8315 Series manual Specifications System Design, Software Functionality, Host Communication, Modbus Functionality