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CP343-1 showing BF contineously

Created by: john Enthu at: 9/12/2008 10:15 AM (5 Replies)

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9/12/2008 10:15 AM	Rate (0)
john Enthu Posts: 69 Rating: (0)	Dear sir, i found some problem with CPU315-2 pn/dp. i have connected PN port to ethernet switch and then i connected it into CP1613. i am getting the data over my CP1613 station. i can also ping the CPU profinet port. just the problem is: my BF2 LED on CPU is contineously ON with red indication. please, note that this is not happeningwith every system. because i am havingsuch 30 systems. among them, i am getting it for 3 to 4 systems. my purpose is solved but why that LED is coming, that i am not able to understand. My each system consists of CPU, 1-DI, 1-DO, 3-AI, 1-CP341 and 1-CP343-1. no ET-station. nothing configured on MPI/Profibus DP port except my OP77B which is by default MPI-1 address.OP77B communicating with PLC very fine. Please, suggest me the solution if any body experiences the same...... regards john.....
john Enthu Posts: 69 Rating: (0)
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9/12/2008 11:27 AM	Rate (0)
UMENCHO Diamond Expert Joined: 3/21/2006 Last visit: 11/14/2023 Posts: 10222 Rating: (1177)	Hi Did you check diagnostic buffer on CPU for more details about this BF? One more think - in a thread title you wrote " CP343-1 showing BF contineously" after that was CPU. regards

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9/12/2008 3:31 PM	Rate (0)
john Enthu Posts: 69 Rating: (0)	Dear Sir, i m sorry to say. its typing mistake. it is CPU only. My thread subject should be "BF2 contineously glowing on CPU". Also, i dont have diagnostic buffer print out. so, please, guide me if possible. regards, John
john Enthu Posts: 69 Rating: (0)
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9/12/2008 5:17 PM	Rate (0)
Hulzhex Gold Member Joined: 8/25/2005 Last visit: 11/30/2023 Posts: 1161 Rating: (110)	Hello John, maybe the information published within an FAQ will answer your question: Why does the LED BF2 light with PROFINET CPUs S7-315/317-2PN/DP V2.3 even though no bus fault can be determined? Best regards Sabine

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9/13/2008 6:46 AM	Rate (0)
john Enthu Posts: 69 Rating: (0)	Thanks a lot...... it will help me while solving out the problem....... thanks once again, regards, John......
john Enthu Posts: 69 Rating: (0)
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9/13/2008 11:20 PM	Rate (0)
J_Bell Posts: 5822 Rating: (411)	Dear John, maybe just one more idea, would you please check also the Firmware versions of the CPUs you use? Especially for those which show the BF with those who do not. Iexpect you will see a difference, maybe. Best regards J_Bell
J_Bell Posts: 5822 Rating: (411)
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