Hello, i'm doing a PLC industrial project assignment using RSLOGIX500. Basically, there are 6 cylinders and we have to move the blocks in a sequence. I've used SQC and SQO. The catch is my professor said no timers are allowed to allow the sequence to continuously run. Here is where i'm in a hole; I do not know how to make my plc rung to run without adding a timer. I'm open for any suggestions. I tried adding a counter, but I always have to manually toggle the counter bit in order for my cylinder outputs to advance/retract.