PLC Omron Motor Sequence Help

I am currently taking PLC training and have come across a circuit that I can not figure out how to complete. Any help would be greatly appreciated.

Send me a message and I can explain circuit.

Thanks

Post it here, or send me a PM; I'll try to help.

Design a program to control the following circuit for the use with an Omron PLC.

-3 motors, each controlled by their own stop/start.
-Motor A must be running before B or C can be started.
-if only Motors A and B are running, Motor A can be stopped without stopping Motor B.
-if only Motors A and C are running, Motor A can be stopped without stopping Motor C.

*-If all 3 Motors are running, stopping any one of the 3 motors will de-energize the remaining two motors.


I have the circuit complete till the last step where: If all 3 Motors are running, stopping any one of the 3 motors will de-energize the remaining two motors.

I can not seem to figure a way out. Any guidelines will help.
Thanks

Show us what you have actually done so that we may help you, just giving us the problem and saying you have got it working up to a point does not help us help you.

http://tinypic.com?ref=jsp0qp

http://i62.tinypic.com/jsp0qp.png

Unfortunately I cannot access those files from work.
So hopefully someone else has access and can help you.

Alan

I don't have any experience with Omron but this seems to meet all the requirements in Rslogix 500.

With the schematic you posted when all three are running; can you press any of the stops and the whole circuit shuts down.

oh sorry. i see now!!! Thanks a lot. Greatly appreciated