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We are duplicating a machine. V1210 with V200-18-E3XB and EX-D16A3-TO16 just like the old one that works perfectly. Running into input problems. Input is on as it should and it does not change in live mode. Like I trip a breaker but it does not change status on plc. If I trigger another input that works.  What gives?

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Don't forget the tip on holding the snap-in in place a lot better by using some carefully cut and applied "gaffer" tape.

 

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As I've mentioned somewhere here before, I've taken to the habit of drilling holes in the corners of the snap-in modules (I've made a little drilling template that lays over the module), and securing with screws.

For a few years now, the creators have provided screw bosses on the PLC case, but they still don't put the holes in the modules?

this doesn't prevent someone from bending a pin, but it sure keeps the snap-in module from falling off due to machine vibration....

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John, what's wrong with tape?  Jeesh...even way in the future Sigourney still uses it to attach various gizmos onto her "kill all the aliens" weapon!  I always laughed at that.  👽

Yes...screws are good. 

cheers, Aus

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I don't know, even though I grew up around a farming community, I was never keen on baling wire and duct tape repairs 🥴

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