Hello to all!
Today I found one misterious problem with alert handling power config.
When I check hysteresis in masterDP, and then transfered this config to all DP, basic alert_hld parameters synchronise. Everything but hysteresys.
Can anyone try the same. Maybe I do something wrong...
Tried on 3.14 P005 and 3.13 P006.
Hysteresis problem in masterDP
- Gertjan van Schijndel
- Posts:634
- Joined: Mon Aug 02, 2010 10:37 am
Re: Hysteresis problem in masterDP
Which powerconfig are you using? Or did you create your own powerconfig for this?
- v_tsolis@akatt.gr
- Posts:3
- Joined: Mon Apr 18, 2016 12:50 pm
Re: Hysteresis problem in masterDP
Hello.
I have the same problem.
I am trying to write Hysteresis values to a datapoint that i created from a MasterDP and it doesn't work. The Power config that I used is “Alert handling 5 ranges” and I am changing “_alert_hdl..u_hyst_limit.” When I am testing with datapoint that is not generated from a MasterDP it works correctly.
I have the same problem.
I am trying to write Hysteresis values to a datapoint that i created from a MasterDP and it doesn't work. The Power config that I used is “Alert handling 5 ranges” and I am changing “_alert_hdl..u_hyst_limit.” When I am testing with datapoint that is not generated from a MasterDP it works correctly.
- NFedorenko
- Posts:45
- Joined: Wed Jun 15, 2016 5:41 pm
Re: Hysteresis problem in masterDP
I've tried to do the same with ETM official trainer in Russia, and we faced the same problem.
Hysteresis doesn't work in powerconfigs.

Hysteresis doesn't work in powerconfigs.
- mkerk
- Posts:75
- Joined: Wed Oct 20, 2010 12:25 pm
Re: Hysteresis problem in masterDP
Hello,
Hysteresis is not implemented in the WinCC OA Standard alarmhandling-Powerconfigs.
If you want to use Hysteresis with MasterDP, than you have to create your own PowerConfig or extend an existing one and set the alarm handling attribute "_alert_hdl.._hyst_type", "_alert_hdl.._l_hyst_limit" and "_alert_hdl.._u_hyst_limit" in this config.
BR,
Mousser
Hysteresis is not implemented in the WinCC OA Standard alarmhandling-Powerconfigs.
If you want to use Hysteresis with MasterDP, than you have to create your own PowerConfig or extend an existing one and set the alarm handling attribute "_alert_hdl.._hyst_type", "_alert_hdl.._l_hyst_limit" and "_alert_hdl.._u_hyst_limit" in this config.
BR,
Mousser
- v_tsolis@akatt.gr
- Posts:3
- Joined: Mon Apr 18, 2016 12:50 pm
Re: Hysteresis problem in masterDP
Thank you