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DIAGNOSTIC REPEATER TIME SYNC

Created by: RPZC at: 12/3/2012 3:06 PM (4 Replies)

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12/3/2012 3:06 PM	Rate (0)
RPZC Posts: 2 Rating: (0)	We are using diagnostic repeaters 6ES7 972-0AB01-0XA0. The problem is we are unable to adjust timeon the diagnostic repeatersto sync with the CPU. What can we do to fix the problem.
RPZC Posts: 2 Rating: (0)
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12/4/2012 2:42 AM	Rate (0)
billwest Posts: 510 Rating: (117)	I reviewed the System Manual and the TISOFT programming manuals and there is no time function for synchronizing time with devices on the profibus network. The TimeSet instruction is just for setting the real time clock. It does not set other devices. Nor is there the ability to utilize an NTP server. I don't have any work arounds either. billwest
billwest Posts: 510 Rating: (117)
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12/4/2012 7:37 AM	Rate (0)
RPZC Posts: 2 Rating: (0)	Thank you Bill. Is there anything that we can do to atleast get the date right? Our problem is not the real time but the date as it is locked in the diagnostic repeaters
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12/5/2012 4:43 AM	Rate (0)
fritz Diamond Member Joined: 10/7/2005 Last visit: 10/11/2024 Posts: 3024 Rating: (1054)	Hello Skorpionzinc Date and time are set together on the Diagnostic repeater (and revert back to midnight 1st January 1994 after every power off) , so you'll either get both set or none at all. In order to do so you need to use DP-V1 related acyclic communication functions and write Data record 60 to the Diagnostic repeater. While this sounds scary, it is no big deal if for example an S7 PLC is used and the SIMATIC Diagnostic Repeater for PROFIBUS-DP manual has all the details on how to do so in chapter 2.5. I fear though that your TI PLC DP master is either not DP-V1 capable and/or the CPU does NOT have the appropriate functions in it that allow usage of this (sorry, perhaps billwest can confirm this as TI is not my strongest side). One alternative I could offer though is to replace the good old Diagnostic repeater with aCOMbricks based repeater. This- in my humble oponion - will give you far superior network Diagnostic as well as removing the problem with the date and time (I do work for a PROCENTEC Gold Distributor just to get the Disclaimer out of the way with this advice). I hope this helps
	Last edited by: fritz at: 12/5/2012 4:45 AM typos Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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12/8/2012 12:53 PM	Rate (0)
billwest Posts: 510 Rating: (117)	When Profibus was added to the TI controllers a Profibus diagnostic read function was added, DPS I think. However, the write function was not added. This prevents you from writing the date and time to the Diagnostic repeater. billwest
billwest Posts: 510 Rating: (117)
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This contribution was helpful to 1 thankful Users fritz

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