Alicat Brings Mass Flow Control to Industrial Modbus Networks

Mass flow meters and controllers now available with Modbus-RTU communications protocol
Tucson, Arizona (March 27, 2014) – Alicat Scientific, Inc. now offers Modbus-RTU communications protocol as an option on all of its mass flow meters, mass flow controllers and pressure controllers. Modbus-RTU is an enduring industrial networking standard that allows communication among hundreds of devices on a single network.

Alicat’s new Modbus implementation brings the company’s signature laminar differential pressure-based measurement and 50-ms proportional control speeds to existing industrial Modbus-RTU networks. The Modbus protocol outputs all of the mass flow or pressure controller’s data, including: mass flow, volumetric flow, pressure, temperature, selected gas calibration, setpoint and totalized flow. Users may send commanded setpoints, gas selections and register changes to the Alicat meter or controller using a Modbus-enabled computer or PLC.

This Modbus offering may be paired with either Alicat’s standard multi-drop RS-232 connectivity or the optional RS-485 for greater data integrity over longer distances. Physical connector choices include 8-pin mini-DIN, 9-pin D-sub and 15-pin D-sub, which are available in a variety of pinout configurations for easy drop-in replacement of older industrial units. All Alicat instruments are backed by NIST-traceable calibration, comprehensive technical support and a lifetime warranty.