Today is...
Thursday, July 18, 2019
Welcome to, the global online
community of automation professionals.
Featured Video...
Featured Video
A demonstration of EtherCAT control of linear motors using the CTC EtherCAT master.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive
Valve Communication
Software needed for communication

I work in the valve automation and have mainly used Hart communications over the years. I have a few customers now that are using Modbus. What do I need to be able to communicate with stand alone Modbus installed devices?

1 out of 1 members thought this post was helpful...

I presume that you're really communicating with either an electric actuator or a positioner because the metal or plastic valve bodies don't talk digital protocols and only sound off when they cavitate.

For testing purposes, like, writing 'drive open', 'drive closed', or 'stop' commands, or reading 'position feedback; you can use a generic Windows Modbus Master like Modscan, Modpoll, or SimplyModbus (there are others, too) with a USB/RS-232 or USB/RS-485 modem, or use Ethernet if the unit has Modbus/TCP.

I saw one shop where they supported a number of actuators on a Modbus RTU network. They used an HMI panel with Modbus RTU as the master and programmed buttons for control testing and displays for feedback.