9/13/2023 6:45 PM | |
Joined: 3/21/2022 Last visit: 12/21/2023 Posts: 3 Rating: (0) |
Hello Everyone. The machine I am working on today has 3 NCU's. HMI/NCK is Address 10 NCU 1 MPI address 2 with DP address 3 NCU 2 MPI address 4 with DP address 5 NCU 3 MPI address 6 with DP address 7 We experienced a communication failure on NCU 3 and opted to replace it. Via MPI, I connected to it directly and using the net config software, I loaded our project file the downloaded that into the new NCU which set the MPI and DP addresses. Once this was done I could see that PROFIBUS communication was restored to the downstream drives. In the HMI, I can check the active nodes and 6/7 appear just fine. NCU 3 has the fault 120202 "NCU3: Wait for connection to NC/PLC". We have a backup of the PLC files (from years 2003, 2007, 2008, 2011, 2012, 2015, 2018, and 2022), with Simatic Manager I tried to load that back in, but end up with the PLC in a STOP state due to OB121 missing. I checked NCU 1 and NCU 2, neither have an OB121 file, and they are working perfectly fine. I cleared the config in the NCU, reset addresses 6/7 and proceeded to try on the HMI. On the HMI, I am not able to select NCU3 to retore the NC or PLC from archives. I am completely stuck. Ive heard there is software that will allow me to restore an *.arc file from my laptop though I cant seem to find the name of this software. Is there a trick to load the NC archive from a laptop? Is there any other "trick" method to restore from an *.arc when the HMI cannot select it? Ive tried selecting NCU2, then changing the addresses on the new NCU to 4/5 (disconnecting NCU2 from the machine) and then trying to load the archives. This didn't work, still claims it cant talk to this NCU. When I piggyback on x102, I can browse active nodes, I can see all of them (2,3,4,5,6,7,10). Pictures of what I am talking about [snip] The link above will expire Oct 31, 2023 AttachmentFiles.zip (254 Downloads) |
Last edited by: MrBM at: 09/13/2023 18:53:46Last edited by: Jen_Moderator at: 09/14/2023 08:44:02Link removed and files added as .zip file. |
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