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Alarms and events have incorrect timestamp

Created by: kimbul at: 9/6/2021 10:21 AM (5 Replies)

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9/6/2021 10:21 AM	Rate (0)
kimbul Bronze Member Joined: 8/1/2019 Last visit: 12/8/2025 Posts: 304 Rating: (3)	When an alarm or event is logged in the message system, the timestamp is incorrect? But the WinCC runtime displays the correct date and time at the top right corner.

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9/6/2021 10:33 AM	Rate (0)
bg2492 Posts: 7298 Rating: (2188)	Hello ashadako, are this binary messages, createt by WinCC themself, or maybe "chronological messaging", where the timestamp is send by the PLC ? see FAQ: "How do you implement chronological messaging with S7-400 CPUs and WinCC?" https://support.industry.siemens.com/cs/ww/en/view/23730697 In this case check the following FAQ: "Why are messages of the PLC in WinCC OS displayed with a time stamp that is incorrect by one or more hours?" https://support.industry.siemens.com/cs/ww/en/view/7604251 Regards Georg Berghof
bg2492 Posts: 7298 Rating: (2188)
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This contribution was helpful to 2 thankful Users kimbul evl_lev

9/6/2021 11:23 AM	Rate (0)
kimbul Bronze Member Joined: 8/1/2019 Last visit: 12/8/2025 Posts: 304 Rating: (3)	CPU time is correct. Messages come from CPU to WinCC. In a screenshot, you see a message generated when I created an error on one valve. Attachment Message timestamp issue.zip (246 Downloads)

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9/6/2021 11:40 AM	Rate (0)
bg2492 Posts: 7298 Rating: (2188)	Hello ashadako, WinCC awaits, that the time in the PLC is in UTC Timezone. If you have set the local time there, you have a diffrence of two hours in the timestamps for the message. see the following FAQ: "Why are messages of the PLC in WinCC OS displayed with a time stamp that is incorrect by one or more hours?" https://support.industry.siemens.com/cs/ww/en/view/7604251 Regards Georg Berghof
bg2492 Posts: 7298 Rating: (2188)
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This contribution was helpful to 1 thankful Users kimbul

9/6/2021 11:57 AM	Rate (0)
kimbul Bronze Member Joined: 8/1/2019 Last visit: 12/8/2025 Posts: 304 Rating: (3)	I checked that. It's UTC by default.

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9/6/2021 12:10 PM	Rate (1)
bg2492 Posts: 7298 Rating: (2188)	Hello ashadako, WinCC awaits, that the time in the PLC is in UTC Timezone, with this setting. That means, if it is 11:00 in the WinCC PC, it should be 09:00 in the PLC, and not 11:00 like in the WinCC PC. Regards Georg Berghof
bg2492 Posts: 7298 Rating: (2188)
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This contribution was helpful to 1 thankful Users kimbul

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