Hello!
How can i find out the reason of signal bad quality from driver OPC DA client? The user bits of signal are 4th and 5th but Matricon OPC says that the signal has 192 (good) quality signal.
In Para signal original attributes such as the Invalid are true: Default value, Online value, Offline value. Invalid due to: all are true.
WCCOA 3.15 P027.
OPC DA bad quality
- leoknipp
- Posts:2928
- Joined: Tue Aug 24, 2010 7:28 pm
Re: OPC DA bad quality
If you want to get detailed information which status bits are set you can read the attribute _online.._status or _online.._status64.
In the WinCC OA Documentation you can find the information which bits reflects which information in Reference tables --> Data point configs --> _original.
The user bits do not have an effect on the quality.
Best Regards
Leopold Knipp
Senior Support Specialist
In the WinCC OA Documentation you can find the information which bits reflects which information in Reference tables --> Data point configs --> _original.
The user bits do not have an effect on the quality.
Best Regards
Leopold Knipp
Senior Support Specialist