Hello

The atached PLC 5/05 Program faults on a ASCII String Manipulation error when run through the RSLogix 500 EMU.

ASCII String Manipulation S:5/15
This bit is set (1) when an attempt is made to process a string using an ASCII instruction that exceeds 82 characters in length.

Any help in locating the offending String/ASCII instruction would be greatly appreciated.

Peter

Hi

For what it's worth, the Fault condition in the above program file attached (above) cannot be cleared ?

Peter

Figured it out to be the indirect pointer C5:3 that is used in some ASCII instructions.

When I set the .acc to 1, I am able to clear the fault.

Still have to figure out which rung 7:46-51

Weird that the Major Error locator does not indicate the offending rung.

Found some stuff in the instruction set manual that discusses the error bit S:5/15, but not really much help.

I think I am on the right track anyway, thanks to all who viewed the posting.


Peter

so I got one question...

I looked at your posted file and I see that your looking at a program with no descriptions, and no symbols...is that how you de-bug the program now? if you are...you're more of a man than me.

That maybe why your not getting much help, what I am trying to say it's diffcult to troubleshoot a program like this without some indication with descriptions what the orginal programmer was thinking.

Try Looking at ladder 11
The N220 words that are being moved to strings may be causing problems?