Allen-Bradley Micrologix 1000 input problem

Mr.Lemonnier

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Sep 2010

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Québec

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• Sep 16, 2010

• #1

Hello, input 0/0 and 0/2 toggle on simultaneously when I trigger one of the two. I've dropped a clear file and checked the force sheet. Was working good yesterday, maybe it just fried inside ?

Thanks for help !

 

Honga

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May 2010

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Aus

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• Sep 16, 2010

• #2

Zip and post your code, or cutepdf print it and repost.

 

Tharon

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Jan 2007

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• Sep 16, 2010

• #3

Check the wiring. There may be a short between I:0/0 and I:0/2. That would be an easy explanation as to why it was working before and now isn't.

(I know it's a pretty basic step, but you can never be to sure...)

 

Mr.Lemonnier

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Sep 2010

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Québec

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• Sep 16, 2010

• #4

Honga : What code are you talking about ?
Tharon : yeah I've tried with a direct source to each input.

 

Tharon

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• Sep 16, 2010

• #5

So with no wires on I:0/0 or I:0/2, you can put 24VDC on one, and the other turns on?

If that's the case, then something is wrong internally. I don't think the ML1000 has removable contact blocks like the 1200, 1400, and 1500. You'll have to pop a new ML1000 in there to fix it.