I have a project that will involving 1 master PLC talking Modbus over spread spectrum to 4 remote sites, one of these remote sites has a momentum, that will poll on its other available port over VHF License Freq. to 5 other sites and one repeater that will talk with one last site. 1st of all is this application possible and if so what are the catches if any? 2nd, what 15-20 watt VHF radios have been tested and in service with the proworx software package and compact PLCs?

 

Take a look at the Unitronics OPLC line, good unit, low price and talks modbus.

Regards

Mickey Moore
[email protected]

 

I can help you with this in detail off message board.

Have several setups like this.