The 88 and 89 rev counters are the parts to go for, as they are self-contained units. 88-93 all take a signal from the PGM-II/III, but for ease of use, I'd stick with an MC18 item.
The solenoids are "dumb" switches, and controlled by the PGM, so either open or closed.
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Andy.
NSR-WORLD.COM
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