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OB86 in CFC

Created by: Miguel Allende at: 9/4/2008 12:17 PM (3 Replies)

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9/4/2008 12:17 PM	Rate (0)
Miguel Allende Posts: 35 Rating: (0)	Hi. I have programmed in of my two CPU's in CFC. I need to access to the OB86 data (ev_calss, flt_id, rackas_fltd) in order to check the profibus nodes. In CFC this OBs are automatically generated by the system and I can not access them to read this values. I am able to insert the block I have programmed in this OB, but not the data. How can I do it? Thanks.
Miguel Allende Posts: 35 Rating: (0)
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9/4/2008 2:12 PM	Rate (0)
Bilal Moolla Posts: 133 Rating: (9)	Hi Miguel I have programmed OB86 in the blocks option, but I have no idea how to program it using CFC. If you want to know how to program OB86 as a block I could send you an example. Cheers Attachment OB86 Rack Failure.pdf (558 Downloads)
Bilal Moolla Posts: 133 Rating: (9)
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9/4/2008 3:26 PM	Rate (0)
Miguel Allende Posts: 35 Rating: (0)	Thanks, but I have also programmed it in ladder in a non CFC CPU. It is easy to program but I can not access to the OB86 data in CFC beacause this blocks are automatizally generated by the system. It is different in CFC. Thanks.
Miguel Allende Posts: 35 Rating: (0)
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9/4/2008 5:25 PM	Rate (1)
Denilson Pegaia Platinum Member Joined: 9/23/2005 Last visit: 1/14/2025 Posts: 4392 Rating: (1463)	Hi, I have some "work arounds" to this case: 1 - Use SFC 6 "RD_SINFO"to read some of the OB data. 2 - Use Report System Error to show diagnostics alarms in HMI. 3 - Uses FB125 / FC 125 to read Profibus Diagnoses (do a search in this site) 4 - Uses SFC51 to read diagnostics information.
	Denilson Pegaia Siemens Industry Sector Technical Support
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