2/23/2021 3:50 PM | |
Joined: 9/27/2006 Last visit: 5/21/2024 Posts: 12257 Rating: (2668) |
Hello Jackcaress; Haïti and Duris-i have the best suggestion since you have a Siemens S7 CPU: examine the contents of the diagnostic buffer, all encountered faults are logged inside. You can also use the Save As.. button in the diagnostic buffer screen, this will generate a.txt file containing the diagnostic messages, including extra information that can be very useful. Post the txt file here if you need additional help. In the meantime, a description of LED statuses for the CP 342-5 can be found in ch. 2 of this manual: https://support.industry.siemens.com/cs/ww/en/view/8773570 Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 02/23/2021 15:51:44 |
|
This contribution was helpful to1 thankful Users |
2/25/2021 9:27 AM | |
Joined: 3/12/2015 Last visit: 5/16/2024 Posts: 533 Rating: (15) |
Good morning guys , im at the factory now and i have three machines that are linked via profibus one central machine and two identical cnc machines. on the central machine the busf led is flashing and on machine 2 i have the same problem (busf flashing), they told me that on the machine 2 they replaced the CP342.5 module and attached is the diagnostics from that module AttachmentDiagnose.txt (182 Downloads) |
2/26/2021 6:30 PM | |
Joined: 9/27/2006 Last visit: 5/21/2024 Posts: 12257 Rating: (2668) |
Hello Jackcaress; This is from memory, so forgive me if I am not a perfect answer. The Profibus address of the CP 342-5 is held by the CPU, through a hardware download, and not in the CP itself. The setting of the Profibus address on a CP 342-5 can be done through the hardware configuration, or through the user program (SFC 58 "WR_REC"). If you have access to the CPU over an MPI connection for example, you can open the hardware configuration, change the address of the CP, compile and download the modified configuration to the CPU. Your CP 342-5 will now respond to the new address. This commissioning manual for Profibus CPs has more information in chapter 3. https://support.industry.siemens.com/cs/ww/en/view/1158693 Hope this helps, Daniel Chartier |
2/28/2021 9:16 PM | |
Joined: 4/28/2015 Last visit: 2/7/2024 Posts: 10533 Rating: (819)
|
Hello, some statuses are monitored (Master, Slave is running, ...) for some 'general' DP error for specific CP to know (user defined alarm). Then specific only code to set signal to Dispatcher to imediately STOP probably, automatic/manual control is defined. I think signals can flash but if they set that general CP342 error, question is really why, due DP_DIAG parameters. That DP_DIAG block is somewhere executed. Sry, only my opinion, hope others maybe give better and clear info. Link to FAQ about DP_DIAG: DP_DIAG FAQ It's for TIA but can give some look about possibilities, in Step7 v5. Online help or manual Simatic NET can be also helpful. |
Last edited by: Duris_I at: 02/28/2021 21:26:57Last edited by: Duris_I at: 02/28/2021 21:28:16Last edited by: Duris_I at: 02/28/2021 21:34:53Last edited by: Jen_Moderator at: 03/01/2021 07:47:10Optimized link. With best regards... |
|
Follow us on