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S7-1214C diagnostic

Created by: Beep-A at: 12/5/2012 11:40 AM (12 Replies)

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12/5/2012 11:40 AM	Rate (0)
Beep-A Posts: 90 Rating: (1)	Hello people! We have installed one S7-1214C PLC system. The PLC worked fine for 4 weeks, but then the client reported that the PLC is in stop mode. There is the possibility that the client sends us the PLC by mail. The shipping should least for 3 days. Could be possible to open the diagnostic on the PLC to check forthe problem when the PLC is 3 days without power supply? Thank you for your answers in advance. Kind regards Beep
Beep-A Posts: 90 Rating: (1)
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12/5/2012 12:31 PM	Rate (0)
Ganes10 Platinum Member Joined: 8/31/2010 Last visit: 11/6/2024 Posts: 1523 Rating: (229)	Beep-A Hello people! We have installed one S7-1214C PLC system. The PLC worked fine for 4 weeks, but then the client reported that the PLC is in stop mode. There is the possibility that the client sends us the PLC by mail. The shipping should least for 3 days. Could be possible to open the diagnostic on the PLC to check forthe problem when the PLC is 3 days without power supply? Thank you for your answers in advance. Kind regards Beep Hello Beep-A, Only the 10 most recent events in the diagnostic buffer are stored permanently. Hope you get the necessary information within the available 10 entries.
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12/11/2012 4:51 PM	Rate (0)
Jr_Jrsolutions_BR Posts: 38 Rating: (0)	hello you can make a print screen to diagnostic de buffer and send or post here , or send your project Thanks Nilton Junior
Jr_Jrsolutions_BR Posts: 38 Rating: (0)
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12/17/2012 10:09 AM	Rate (0)
Beep-A Posts: 90 Rating: (1)	Hello people! Finally, the client sent us the PLC. I've opened the diagnostic buffer and find the following: 9 of 50; Event ID: 16# 02:4000 CPU info: New startup information Pending startup inhibit(s): - System request for power cycle Current CPU operating mode: STOP Outgoing event 11/30/2012 11:25:31.836 AM 10 of 50; Event ID: 16# 02:4042 CPU error: Hardware configuration error :/nRemoval of hardware component not permitted CPU changes to STOP mode, new startup inhibit set: .. - System request for power cycle Incoming event 11/30/2012 11:25:31.735 AM 11 of 50; Event ID: 16# 02:4042 CPU error: Hardware configuration error :/nRemoval of hardware component not permitted CPU changes to STOP mode, new startup inhibit set: .. - System request for power cycle Incoming event 11/30/2012 11:25:31.735 AM 12 of 50; Event ID: 16# 02:4042 CPU error: Hardware configuration error :/nRemoval of hardware component not permitted CPU changes to STOP mode, new startup inhibit set: .. - System request for power cycle Incoming event 11/30/2012 11:25:31.733 AM 13 of 50; Event ID: 16# 02:39B4 CPU error: New I/O access error during process image update /n output 54 (4 Bytes) will temporarily not be updated as part of the updating of process image 0 Outgoing event 11/30/2012 11:25:31.631 AM 14 of 50; Event ID: 16# 02:39B4 CPU error: New I/O access error during process image update /n output 50 (4 Bytes) will temporarily not be updated as part of the updating of process image 0 Incoming event 11/30/2012 11:25:31.631 AM 15 of 50; Event ID: 16# 02:39B3 CPU error: New I/O access error during process image update /n input 50 (8 Bytes) will temporarily not be updated as part of the updating of process image 0 Incoming event 11/30/2012 11:25:31.631 AM 16 of 50; Event ID: 16# 02:39B4 CPU error: New I/O access error during process image update /n output 2 (2 Bytes) will temporarily not be updated as part of the updating of process image 0 Incoming event 11/30/2012 11:25:31.631 AM 17 of 50; Event ID: 16# 02:39B3 CPU error: New I/O access error during process image update /n input 2 (2 Bytes) will temporarily not be updated as part of the updating of process image 0 I've searched the forum for similar errors and found several answers but not the exact conclusion for cause of the error. The PLC is connected properly. There is no vibration and also the PLC is far away from frequency converters and other noisy equipment. Every 10 days this annoying error appears. I've found that the problem is resolved configuring OB82, but what is the real cause of the problem? Would you recommend changing the PLC with the new one? Thanks in advance for your answers. Kind regards Beep
Beep-A Posts: 90 Rating: (1)
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12/17/2012 10:47 AM	Rate (0)
Ganes10 Platinum Member Joined: 8/31/2010 Last visit: 11/6/2024 Posts: 1523 Rating: (229)	Hello Beep, It seems like the hardware connected to CPU is either removed automatically or manually. Employ stoppers at both the end of the S7-1200 system to minimize vibrations if any.
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12/17/2012 11:08 AM	Rate (0)
Beep-A Posts: 90 Rating: (1)	Hello Ganes Thanks for your suggestion, but the PLC connections have been already checked. There is absolutely no vibration and the wiring is also checked - there is no poor connection. Any other ideas? Thanks in advance. Beep
Beep-A Posts: 90 Rating: (1)
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12/17/2012 11:29 AM	Rate (0)
Ganes10 Platinum Member Joined: 8/31/2010 Last visit: 11/6/2024 Posts: 1523 Rating: (229)	Did someone tryto plug out the modules when the CPU is operating??
	Last edited by: Ganes10 at: 12/17/2012 11:30 AM Like it? Rate it!
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12/17/2012 1:10 PM	Rate (0)
Beep-A Posts: 90 Rating: (1)	Hi Ganes There is no hardware issue in this error. I know that the description of the error indicates the unplugingof the modules.We are 100% sure that no oneunpluged the modules. Thevery similar problem is discussed in: /tf/WW/en/Posts/75571 and /tf/WW/en/Posts/69975 but, in the answers no one indicated the real cause of the problem. Kind regards,
Beep-A Posts: 90 Rating: (1)
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12/17/2012 4:33 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 11/6/2024 Posts: 15385 Rating: (2443)	Beep-A Hi Ganes There is no hardware issue in this error. I know that the description of the error indicates the unplugingof the modules.We are 100% sure that no oneunpluged the modules. Thevery similar problem is discussed in: /tf/WW/en/Posts/75571 and /tf/WW/en/Posts/69975 but, in the answers no one indicated the real cause of the problem. Kind regards, There is a possible firmware problem with one or more modules in your system. Send your project to Siemens via Support Request to see if there are new firmwares available to address mystery module removal/reinsertion as your system seems to have. It is also possible the sliding connector is not properly seating or has a damaged pin. I had one where the electrician wiring and installing it forced the slider, pushing a pin in. Needlenose pliers pulling the pin flush with the other pins corrected that problem. I had a problem with a TC module reporting weird (wildly incorrect) values or being removed even though none of that happened. Updating the TC module firmware corrected both issues. When looking at the odd problems like this, having that OB82 is essential to allow you to detect how long the problem exists and let your plc logic determine the proper course of action. For example, if the problem persists for just one scan, you can typically tolerate that and handle it within the user logic by retaining prior values and only updating when the module is actually online. It takes more time/effort, but your programming will be more robust and handle a lot more abuse until you discover the root cause. You can also just "throw parts at the problem" by buying replacements with the latest firmware/hardware and see if the problem goes away. There are sometimes problems with a specific firmwawe level between modules that can cause all kinds of odd problems. I have seen communications issues with one firmware revision good for RS485 but bad for TCP/IP, and another FW rev bad for RS485 and good for TCP/IP. Updating firmware on RS485 module corrected problem, but we basically bought a replacement 485 module and the problem went away. It was only when we went online and saw the FW was different that we realized there was a difference. Knowing is half the battle
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12/18/2012 8:19 AM	Rate (0)
Beep-A Posts: 90 Rating: (1)	Hi Huggy Thank you for the extensive and helpful reply. There should be something in the firmware/driver of the components for this configuration. On the same plant we have another identical configuration with S7-1200 which is working fine (the configuration is installed in the same period as the problematic one). I've sent the problem to the Siemens Support. Would be nice to have an official reply from Siemens since this problem raised in several cases (to different integrators). Kind regards, Beep
Beep-A Posts: 90 Rating: (1)
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