DP to TrendRulerPanel.pnl

[Kirvesmies]

Hi,
I'm sure this has been asked before, but I cannot find solution via search.

How can I get the DP-name also to the trendruler. As default is shows only DP's description, value and unit. I tried to look at the code in TrendRulerPanel.pnl but if I modify that, I'm afraid it will not work after upgrading WinCC versions without maintaining this code.

[gschijndel]

I would expect the TrendRulerPanel to use the name of the curves, so setting the DP name to the curve should do the trick.

[leoknipp]

The TrendRulerPanel uses the curve names to get the information which curves are displayed. It does not read the information for the DP elements assigned to a curve. You can also fill a trend without assigning a DP element.

Best Regards
Leopold Knipp
Senior Support Specialist

[Kirvesmies]

Hi,
Yes thanks.
I added the third row to my code for adding curves to trend. Without it it defaults to naming the curve according to description only.

Code: Select all

  TREND1.addCurve( 0, "#1_1" );
  TREND1.connectDirectly( "#1_1", sDP );
  TREND1.curveLegendName( "#1_1", dpSubStr(sDP, DPSUB_DP) +", "+dpGetDescription(sDP));