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Data accesed with OB57

11/20/2010 7:29 AM	Rate (0)
lidumazie Posts: 14 Rating: (0)	Hello waht kind of data provided in vendor interrupt OB57.Any sample which helps to undrestand it.does siemens provide same function and data in slaves.Is it for new slaves? Thanks
lidumazie Posts: 14 Rating: (0)
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11/20/2010 8:35 PM	Rate (0)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 8/31/2025 Posts: 6874 Rating: (1368)	Hello [quote ] Note You can obtain the full additional information on the interrupt from the DP frame by calling SFB54 "RALRM" in OB57. check attachment for extracted from here(System Software for S7-300/400 System and Standard Functions).Check section 8.3 and this link (How do you receive an alarm with the SFB 54 "RALRM" in compliance with DPV1?) for an example on using SFB54. Regards Attachment OB57.pdf (297 Downloads)
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