Plc component advice

[Raptor]

Hi all just a quick question I'm looking for advice to add on to an existing relay logic system. Basically I want to tie into a relay logic control panel that has 40 connection points and then runs to a group of solenoids and a rpm pick up. I would like to eliminate the 40 wire cable and have just a power,common, and communication. If any one has some input on this it would be great. Also it's a 24v setup. The reviving unit needs to be quite durable due to vibration and possible elemental exposure. Thanks again I know it's a tall order but any input it appriciated.

 

[Lancie1]

The revised unit needs to be quite durable due to vibration and possible elemental exposure.

Then what is wrong with the old relay control panel? You already have the 40-wire cable installed and paid for, so why replace that with a communications cable that only works if your devices on each end are able to send and receive messages in spite of vibration, rain, sleet, whatever?

 

[Raptor]

The problem with it is that the cable needs to be replaced often so from a financial standpoint it's more economical in the long run.

 

[Lancie1]

You could replace the relay panel with a new watertight box with a PLC inside, and mount it on shock absorbers.