rslogix 500 msg word bits info

Hi guys
Just a thought I'm using an a msg which is alredy being used, I have looked at the the usage and the bit that I'm going to use is not being used in the usage is the only place to check thanks stu

You could also right click on the address, and click find all. Sometimes if you accidentally put in an address in your program, then change it, it saves that address as used. Just a thought to maybe what happened...

I recommend performing a cross-reference on the MGx:y element itself, rather than relying on the Usage display.

Do not intentionally use the same Message Control (MGx:y) data element in more than one MSG instruction: the messages will not work correctly.

Have to admit that I don't really understand the question.