S7-200 224 - control 5 dc motors

Istantch

When you say that you want to control 5 DC motors using the PLC, I assume that you will use the PLC to switch outputs to switch an interface relay or contactor or similar.

Your only limit to what the PLC can control will be the amount of I/O you have available.

You mention changing variables via a screen, are you planning on using a drive of some description for the motors? You will not be able to run the motors straight off the PLC outputs you will need some sort of interface (drive, contactor...ETC).

Give us some more information on what you would like to do, what motors you will be using and stuff like that. We can then help you further.

instantch said:

I read about Your Personal PLC Tutor - A Guide to Understanding PLCs, but not sure if this is for me

Click to expand...

This information is generic, so it would be a help to you if you are new to PLC's.

Paul

Thank you PLucas for your replay,
Yes , I have a PCB with 5 relays for start/stop motors and two relays to change polarity for forward and backwards movement.
[size=+0]There are two photocells - one at the end of each cycle common for the 5 motors, only one motor spins at a time.[/size]
[size=+0]I will post more and even the PCB.[/size]
[size=+0][/size]
[size=+0]BTW , I like the definition of "...10 types of people.." )[/size]