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Error 288:47 Fail to online monitor s7 400 CPU

12/13/2023 1:57 AM	Rate (0)
Ew Chee Yean Regular Member Joined: 10/16/2017 Last visit: 9/26/2025 Posts: 42 Rating: (0)	This is not the first time we online upload and monitor PLC program from S7400 CPU. After we upload the program from the CPU, we are unable to online monitor. May I ask what problem could it be? I had tried the settings at PG/PC interface, but the error 288:47 still coming in. Attachment fail to monitor 1.jpeg (506 Downloads)

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12/13/2023 1:58 AM	Rate (0)
Ew Chee Yean Regular Member Joined: 10/16/2017 Last visit: 9/26/2025 Posts: 42 Rating: (0)	I had tried all the transmission speed 19.2kbps, 187.5kbps and 1.5Mbps. But still unable to online monitor the CPU program. Attachment PG PC interface setting.PNG (536 Downloads)

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12/13/2023 2:00 AM	Rate (0)
Ew Chee Yean Regular Member Joined: 10/16/2017 Last visit: 9/26/2025 Posts: 42 Rating: (0)	Here is the PLC architecture. Attachment PLC achitecture.PNG (556 Downloads)

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12/13/2023 10:32 AM	Rate (0)
Duris_I Diamond Member Joined: 4/28/2015 Last visit: 11/27/2025 Posts: 10970 Rating: (843)	Hello, look to your first post what exactly protocol you've set for access and now look at your last post screenshot. Do you see that difference? So set correct Access driver - Profibus with correct speed/profile and then try connecto to your CPU.
	With best regards... Ivan Duris Flight: OMICO
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12/14/2023 1:58 AM	Rate (0)
Ew Chee Yean Regular Member Joined: 10/16/2017 Last visit: 9/26/2025 Posts: 42 Rating: (0)	This one? Attachment Profibus driver.PNG (518 Downloads)

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12/20/2023 6:30 AM	Rate (0)
Transponder Snail Posts: 158 Rating: (21)	Hello, maybe following is helpful for you: https://support.industry.siemens.com/cs/ww/en/view/8686578
Transponder Snail Posts: 158 Rating: (21)
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