6/8/2007 8:50 AM | |
Posts: 75 Rating: (0) |
Whether probably to diagnose a condition the power supply PS407 10A CPU414-4H in user program? |
6/9/2007 4:16 PM | |
Joined: 1/7/2006 Last visit: 11/17/2023 Posts: 2705 Rating: (318)
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Hi Dimbas, See the source in STL to compile directly. You can read out with OB81 that there are power-failures and detect for example that the batteries are empty. This block will work for 4A power supplys also. AttachmentCheckPS.zip (408 Downloads) |
I hope that the answer will help, if you have still questions, don't hesitate to ask me. |
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6/24/2007 12:58 PM | |
Joined: 1/7/2006 Last visit: 11/17/2023 Posts: 2705 Rating: (318)
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Hi Aret, You may make the amount of diagnostic messages bigger in the hardware, by placing also OB85 to "only for incoming and outgoing messages" and throw OB121/122 out of the program you may see which message is transfered to the diagnostic buffer. There is also a SFC where you can read out the diagnostic buffer from the program. See System Software for S7-300/400 System and Standard Functions to read out the diagnostic buffer. In the chapter 33.30 SSL-ID W#16#xyA0 - Diagnostic Buffer you can read-out more information how to do that. In STEP7is the structure of the diagnostic data explained. Keep me posted... |
Last edited by: Late at: 24.06.2007 13:04errors in text I hope that the answer will help, if you have still questions, don't hesitate to ask me. |
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