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How to monitor/ read internal temperature of S7-400 CPU

2/16/2024 12:22 PM	Rate (0)
rama_tata Joined: 3/4/2023 Last visit: 11/17/2024 Posts: 1 Rating: (0)	S7-400 CPU getting heated and causing the CPU to STOP at site. Therefore for analysis of the cause, I need to monitor its internal temperature . So, kindly suggest me how to read plc temperature at program level or is there any diagnostic tool, event logs or information available for it so that I can reach to the core of solution.

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2/16/2024 12:30 PM	Rate (0)
serendipity0 Advanced Member Joined: 2/3/2022 Last visit: 4/23/2024 Posts: 304 Rating: (27)	Hi! The CPU does not have an internal temperature log. What you should do is to measure the temperature around the CPU or monitor it for a few days and see if it is within the range that an S7-400 can handle: https://support.industry.siemens.com/cs/ww/en/view/1117740/12135405963 Br!
	Last edited by: The Helping Hand at: 02/19/2024 08:37:12 Link optimized
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