I am trying to improve the program in a pressure tester where an edrum sequencer is being used. Currently the preset step is 1. This machine starts loading the parts at step 1 and starts the test on step 6. If the tester fails a part, the drum stays on step 10 until you reset it and then it goes to step 1 again. When this happens, the operator has to manually unload the parts and carry them up to the load position. This would not happen if I could change the preset to step 6, when an failure occurs and the machine would start the test again. The parts rarely do have a leak, so when you retest them, they usually pass. I have a programming manual that says the preset can be changed in the program but does not say how to do it. Anyone help would be appreciated. It is a DL350 plc and I am using Direct Soft 32.

I got the issue resolved by using an addition drum, dividing the steps between them, and having the test start at step 1 of second drum. Thanks