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Stop caused by code length error

Created by: AA van wyk at: 3/5/2021 10:10 AM (5 Replies)

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3/5/2021 10:10 AM	Rate (0)
AA van wyk Posts: 3 Rating: (0)	Good day everyone. I hope someone has had a similar problem or that someone could shine some light on a current issue we are having on one of our Siemens S7400 PLC's. The processor is intermittently being stopped by a code length error that is caused by FC64. FC64 is a real divider and is being used in 44 places throughout the code. On each of these instances the divider is a fixed value which rules out any diving by zero. Any help will be appreciated. See attached screen of error message. Attachment 2021-03-05.jpg (268 Downloads)
AA van wyk Posts: 3 Rating: (0)	Last edited by: AA van wyk at: 03/05/2021 10:35:14
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3/5/2021 10:26 AM	Rate (0)
jacek d Platinum Expert Joined: 9/23/2005 Last visit: 1/14/2026 Posts: 5155 Rating: (772)	Never heard of a "code length error". Show exact diag buffer contents.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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3/5/2021 10:35 AM	Rate (0)
AA van wyk Posts: 3 Rating: (0)	jacek d Never heard of a "code length error". Show exact diag buffer contents. Updated original post with screenshot.
AA van wyk Posts: 3 Rating: (0)
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3/5/2021 11:06 AM	Rate (0)
jacek d Platinum Expert Joined: 9/23/2005 Last visit: 1/14/2026 Posts: 5155 Rating: (772)	That's something strange.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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3/5/2021 11:25 AM	Rate (0)
AA van wyk Posts: 3 Rating: (0)	jacek d That's something strange. I did see that post. It doesn't give an answer though. Also when clicking open block it will tel you that it can not be opened as its a locked function from siemens. The block is also used in 44 places like i said in the og post.
AA van wyk Posts: 3 Rating: (0)
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3/5/2021 11:55 AM	Rate (0)
jacek d Platinum Expert Joined: 9/23/2005 Last visit: 1/14/2026 Posts: 5155 Rating: (772)	If it is made by Siemens, maybe sending a Support Request is an option.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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