CODESYS - the IEC 61131-3 automation software

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 Post subject: GPIO Default state
PostPosted: Sun Feb 19, 2017 11:36 pm 
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Joined: Thu Feb 16, 2017 1:46 am
Posts: 14
Hi,

After developping a code for my raspberry PI, I found a problem with the default state of pins. When a Pin is energized (high) into codesys, the state is unergized in the reality. Same for the Pins that are supposed to be unergized are energized so It did a big problems to me. It must be a way to fix it, from Linux code or from Codesys modification.

In fact, if my programs had been connected to all the valves and pumps, I shall had big mess here.

Someone know a fix for it? except use negative coil because this is not a real fix.


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