Hello RaviS,

for your problem you must reduce the data space requirement of your local data. If you increase the amount of your local data of the priority class 27, you increase also the requirement of your data space.

You must decrease the amount of your local data by decreasing the data of your priority classes which you don't need or for which you don't need the full space.

Please look in following application example, where you find a walkthrough for decreasing the local data requirement:

https://support.industry.siemens.com/cs/ww/en/view/2718726

Dear nussbaum,

Thanks i changed it and it works.

Thanks :)

New question published by Dipu@76 is split to a separate thread with the subject CPU HARDWARE FAULT OB (OB84) ERROR MESSAGE .

Best regards
Jen_Moderator