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Hi!
I would like to ask for help.
I have 2pcs of vacuum pumps, I want to switch to operating hours, which one to go. Switching should only take place in a stationary position.
I have written 2 hours of operation time counter.
There are two outputs MB0: M101 engine start, MB1: M102 engine start.
I have outputs for both operating hours. If set to <= current operating hours, MB2 and MB3 outputs are active (SET).
How can I do my logic simply?
V130 PLC
Thanks!
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  • MVP 2021

I'm not sure I understand exactly what you're trying to do, but if you want to alternate engines every 2 hours of operation, I would assign a coil to determine currently active engine (0=Engine 1, 1=Engine 2), then toggle the coil triggered by your accumulating register. Place the inverted contact for that coil in series with MB0 and direct contact in series with MB1.

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9 hours ago, Flex727 said:

I'm not sure I understand exactly what you're trying to do, but if you want to alternate engines every 2 hours of operation, I would assign a coil to determine currently active engine (0=Engine 1, 1=Engine 2), then toggle the coil triggered by your accumulating register. Place the inverted contact for that coil in series with MB0 and direct contact in series with MB1.

Thanks!

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