Jump to content

Recommended Posts

Hello, I am new to this forum. I was looking to see if anyone had any info on what I'm trying to do, and I haven't found any, so here is what I am trying to do:


I would have 4 PLC's connected to cellular modems at different sites. I would need the PLC's to communicate (transmit and receive) data to each other, but also they need to be gable to communicate back to a station that sites in the middle. That middle station can send and receive to the PLC's as well.


The first thing I would ask is is this possible, without having it attached to a SCADA system, and if so, where would I start?



Link to comment
Share on other sites



Are you trying to have the PLCs remotely communicate to eachother via the cellular modem?


If you, once you connect the modem to the GPRS network (assuming you are using a GSM modem) you may communicate with the Modbus protocol.  I have added the program here: http://forum.unitronics.com/index.php?/files/file/46-modbus-client-and-server-over-gprs/


Hope this helps.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Important Information

This site uses cookies. By clicking I accept, you agree to their use.