Wrong timestamp in para

[nedzad]

Hello,

We have a problem with a timestamp in para in a redundant system. Every datapoint that is set externally (from driver or some protocol adapter) has wrong timestamp. In the attached image you can see a real time (top of the image) and the time that is set by a driver. When i try to set some datapoint from panel, it writes correct timestamp. Also, when i execute getCurrentTime() function, it returns correct time. And when we get values by polling, the miliseconds part changes instead of the seconds part (e.g. if the polling interval is 1000msec, the time changes in this way: 15:09:30:161, 15:09:30:162, 15:09:30:163 etc., and not 15:09:30, 15:09:31, 15:09:32...)



The system worked normally until today, when some unexpected restarts of the servers happened. Any ideas what could be the problem? The version of the used WinCC OA is 3.12.

Best Regards,
Nedžad https://www.winccoa.com/fileadmin/image ... roblem.jpg

[nedzad]

It works OK now, the problem was that after the restart the server had wrong time for a short period of time, until it synchronized with ntp server. In that period of time some datapoints were set with the timestamp that was ahead of real time and after that server could not write new datapoints with the time that is behind the time of the last written value.

Sorry