Thomas8607 Posted January 15, 2019 Report Share Posted January 15, 2019 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 PLCThanks! Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted January 15, 2019 MVP 2023 Report Share Posted January 15, 2019 Can you upload your program with what you've done so far? Then we can have a look. Joe T. Link to comment Share on other sites More sharing options...
Thomas8607 Posted January 15, 2019 Author Report Share Posted January 15, 2019 3 hours ago, Joe Tauser said: Can you upload your program with what you've done so far? Then we can have a look. Joe T. Dear Joe T. Thanks for the help! vacuum.vlp Link to comment Share on other sites More sharing options...
MVP 2023 Flex727 Posted January 17, 2019 MVP 2023 Report Share Posted January 17, 2019 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. Link to comment Share on other sites More sharing options...
Thomas8607 Posted January 18, 2019 Author Report Share Posted January 18, 2019 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! Link to comment Share on other sites More sharing options...
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