PVSS00event - PARAM/SEVERE - DP functions: infinite loop found

Enclosed you'll find the explanation for a log-message which can occur during runtime. The log-message is written to the PVSS_II.log-file.

PVSS00event (0), 2010.06.17 10:27:46.908, PARAM,SEVERE, 92, DP functions: infinite loop found, DP: System1:Pump1.status.counter:_dp_fct, EvDpManager::, handleDpFuncHL #1, check dp function


Log-message with symbolic names:

PVSS00event (0), <TIMESTAMP>, PARAM,SEVERE, 92, DP functions: infinite
loop found, DP: <DP-Name>:_dp_fct, EvDpManager::, handleDpFuncHL #1, check
dp function


This log-message can have 2 reasons:
1) an infinite loop is configured, e.g. dp-function at datapoint-element A reacts on changes at datapoint-element B, at dp-element B a dp-function is configured which refers to dp-element A

2) the dp-function was called with the same time-stamp at the
input-variables more than 25 times
In this case please check the configuration of the dp-elements which are used as input-variables.

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