bgottenmusic

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? Thank