Convert HART signal to serial Modbus

HCS HART Concentrator System by Moore Industries-International Inc.

Staff -- Control Engineering, 1/1/2006

Converting a HART digital signal to a serial (RS-485) Modbus RTU communication protocol permits up to 15, smart HART-capable transmitters and valves to interface with Modbus-based monitoring and control systems, using Moore Industries' HART Concentrator System (HCS).

HCS interfaces all HART parameters to Modbus, including ability to monitor primary and non-primary (second, third, and fourth) process variables from smart, multivariable mass-flow, pressure, pH, and temperature transmitters; Coriolis, magnetic, ultrasonic, and vortex flowmeters; radar and hydrostatic level transmitters; valve positioners; and damper operators.

HCS also allows monitoring, by a Modbus system, of HART instrument diagnostics using the Field Device Status Byte data that is available in HART's digital information. This includes: smart device configuration changed; primary and non-primary variable out-of-limits; primary variable analog output-fixed; cold start; field device malfunction; and more HART status data available.

HCS is programmed in minutes using Moore Industries' Windows-PC configuration software. It is housed in a metal- and RFI-protected housing that snaps onto standard DIN-style rails.

www.miinet.com/hart

• Converts HART signal to serial Modbus RTU
• Interfaces all HART parameters
• Allows monitoring by Modbus
• Can be programmed in minutes