Is this a valid address

Aww. He figured out the indirect address himself...

Yes.

Whenever I have to ask a question like this, I always "ask the software". It's 'smarter' than the manuals. If it says you can do something, then you can, even if the manual says No. Likewise, if it says you can't, then you can't, reguardless of the manual.

Just be sure you're careful of the ranges of N7:0 (0 to 15), otherwise bad things could happen.
 
Just be sure you're careful of the ranges of N7:0 (0 to 15), otherwise bad things could happen
If there is any doubt that an indirect could take a final address reference out of range (thus causing a processor fault) I put a LIM instruction in the ladder and if the refering number is out of range, then force it to some "safe" value.
 

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