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Problem between static area in a FB and relative addressing

Created by: hlapak at: 11/29/2011 12:50 PM (2 Replies)

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11/29/2011 12:50 PM	Rate (0)
hlapak Regular Member Joined: 11/25/2011 Last visit: 6/11/2022 Posts: 16 Rating: (1)	Dear friends, I would like to ask if anyone could help me with a problem that I have encountered at my current project. The problem actually is maybe trivial and easy but I can not understand why it happens. I have a FB with instant DB which has a certain structure defined by a UDT. In the FB I put in the static memory area the UDT which I use in the DB. Whenever I use direct addressing everything is normal and working. However when I use relative addressing even though I see in the DB1 and DB2 in the online status the correct DB - I do not see the correct state of the variables in the DB, which must be the same as these in the static memory area. Could anyone try a suggestion what I am doing wrong. I do not know whether I managed to explain the problem clear enough therefore I enclose a screenshot of the online status of the FB where I have put at the same time 3 different addressings to one single bit. Thank you in advance. All suggestions are very welcome. respectfully, izi Attachment S7_FB_issue.jpg (122 Downloads)

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11/29/2011 3:58 PM	Rate (0)
Cicero Gold Member Joined: 10/10/2005 Last visit: 1/29/2025 Posts: 1940 Rating: (138)	Hello, regarding to your inquiry there is a FAQ in the internet. Perhaps it is possible, that this FAQ is mainful for you. http://support.automation.siemens.com/WW/view/de/24519821 With best regards Cicero

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11/30/2011 10:46 AM	Rate (0)
hlapak Regular Member Joined: 11/25/2011 Last visit: 6/11/2022 Posts: 16 Rating: (1)	Thank you very much :-))) It is rather helpful :-)

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