HART to Modbus RTU Module

Categories: Communications & Wireless Telemetry, Integrasense Communications and Telemetry

Description

Interfaces HART process control instruments, like

Flow Meters,
Transmitters (pressure, temperature, …),
Valve Positioners

with

Remote Terminal Units,
PLCs,
PCs,
DCS,
or SCADA systems.

Functions as a communication link (RS-485) to HART networks for commissioning, servicing, calibrating, or acquiring data from any HART instrument or transmitter.

Specifications

Supported Protocols:

HART: 1200 bd, odd parity
Serial (RS-485): For use with HART configuration and test software. Baud rate and data format are configurable.
Modbus RTU (RS-485): Baud rate, data format and Modbus device ID are configurable.

Selectable Modes:

HART Modem: Protocol modem with managed master timing. Functions as primary or secondary master. Automatic RTS control.
HART to Modbus RTU: Continuously polls up to 16 HART devices and stores device data in Modbus Holding Registers. HART device variables can be accessed as 16 bit integer or 32 bit floating point. Up to 4 variables per HART device are supported.

Inputs (removable terminal blocks):

Supply Voltage: 8VDC – 36VDC, 0.5A
HART: Requires external loop resistor (loop resistance: 230 to 600 Ohms, typical: 250 Ohms). HART input wiring is not polarity sensitive.

Outputs (removable terminal blocks):

2 x RS-485 serial port, connected in parallel for RS-485 in/out daisy chain. EOL resistor (120 Ohm) can be enabled/disabled via front accessible jumper.

Indicators

Green Power LED
Yellow HART Carrier Detect LED

Installation

DIN Rail

Downloads / Tech Support

HART to Modbus RTU

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