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| 9/20/2006 2:39 PM | |
Joined: 1/30/2006 Last visit: 9/11/2024 Posts: 104 Rating:
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Almost irrelevant? Hmmm... I guess I was attempting to figure out how to minimize the operator's need to update the clock. The machine of which this system is partis involved in shift work. I know well that I can sync one to the other, but whether I sync the HMI to the PLC or vice versa really depends on which is more accurate. Thanks, Captive Engineer |
| 9/20/2006 2:51 PM | |
Joined: 9/5/2007 Last visit: 3/7/2023 Posts: 317 Rating:
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My guess is that info is only available from siemens tech support. In my experience plcs are more accurate and almost always used as the master. |
| 9/24/2006 8:51 AM | |
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Posts: 1 Rating:
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If your PLC has an ethernet card and can reach a NTP server; then you can sync the clock in the PLC with that server and then sync the clock in the panel with the PLC. Otherwise I think the PLC clock is more accurate. For more information: https://support.automation.siemens.com/WW/llisapi.dll/17990844?func=ll&objId=22680399 |
| 9/26/2006 7:01 AM | |
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Posts: 2348 Rating:
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Not with S7-200. Do you have some SCADA/Sync device (like GPS syncro station) or something else, that could provide time syncronization? Guess MP370 has better time accuracy than 7 minutes/month. |
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