Hello,

I have four Generators Sets that I will like to comunicate with my PLC Allen Bradley Micrologix 1100 using MODBUS RTU Protocol. (See Pciture Attached)

The problem is that 2 of them use RS-485 (Two Wires) and the other 2 use RS-422 (Four Wires) all MODBUS RTU.

There is any way that I can Incorporate all to my networks in the PLC?


Francisco.

Here, there might be a solution at this site.

http://www.rs485.com/pconverters.html

Note: I have not used this product but it looks like they might solve your problem

This site has a lot of user configurable gateway products for Modbus.

http://www.prolinxgateways.com/content/view/full/500