Add Trend Tag to existing/previous trend view [Citect Scada 2018 SA]

Hi Rune,

Change the for loop in: "TrendPage_ShowForEquipment" as follows:

FOR iTrace = 0 TO nTraceCount - 1 DO
sItem = ArrayGetString(hTraces, iTrace, g_iTraceDataItem);
sTag = ArrayGetString(hTraces, iTrace, g_iTraceDataTag);
nTraceType = ArrayGetInt(hTraces, iTrace, g_iTraceDataTraceType);
nPenType = ArrayGetInt(hTraces, iTrace, g_iTraceDataPenType);
nAlarmType = ArrayGetInt(hTraces, iTrace, g_iTraceDataAlarmType);

sPenName = _TrendPage_GetPenName(sCluster, sEquipment, sItem);

sTraceKeyTest = _TrendPage_GetTraceKey(sPenName, nTraceType);

// Only add the trace if it does not already exist
IF (NOT MapKeyExists(sActiveTraceMap, sTraceKeyTest)) THEN
_TrendPage_AddTrendToPA(sPenName, nTraceType, sTag, nPenType, nAlarmType);

// Need to manually update active trace map as PenCreated is suppressed
sTraceKey = _TrendPage_GetTraceKey(sPenName, nTraceType);
MapValueSet(sActiveTraceMap, sTraceKey, 0);
ELSE
nSkippedTraces = nSkippedTraces + 1;
END
END

Next modify the _TrendPage_UpdateEquipmentTraceCount call after the for loop to:

// Need to manually update active equipment count as PenCreated is suppressed
_TrendPage_UpdateEquipmentTraceCount(hSelectedEquipment, nTraceCount - nSkippedTraces);

Lastly, make sure you create two local variables to the function:
INT nSkippedTraces = 0;
STRING sTraceKeyTest;

With the earlier changes to not clear the pens and the above, you will now be able to additively add pens.
Don't forget to add protection to this function to not exceed "l_nMaxActiveTraces". Add a msgbox to be nice to operator when that occurs. There are two situations to take care of:
1. You are already at max active traces and therefore no traces were added
2. current + new traces will yield only some of the traces are added.

cheers,

bradley

Hi Rune,

Change the for loop in: "TrendPage_ShowForEquipment" as follows:

FOR iTrace = 0 TO nTraceCount - 1 DO
sItem = ArrayGetString(hTraces, iTrace, g_iTraceDataItem);
sTag = ArrayGetString(hTraces, iTrace, g_iTraceDataTag);
nTraceType = ArrayGetInt(hTraces, iTrace, g_iTraceDataTraceType);
nPenType = ArrayGetInt(hTraces, iTrace, g_iTraceDataPenType);
nAlarmType = ArrayGetInt(hTraces, iTrace, g_iTraceDataAlarmType);

sPenName = _TrendPage_GetPenName(sCluster, sEquipment, sItem);

sTraceKeyTest = _TrendPage_GetTraceKey(sPenName, nTraceType);

// Only add the trace if it does not already exist
IF (NOT MapKeyExists(sActiveTraceMap, sTraceKeyTest)) THEN
_TrendPage_AddTrendToPA(sPenName, nTraceType, sTag, nPenType, nAlarmType);

// Need to manually update active trace map as PenCreated is suppressed
sTraceKey = _TrendPage_GetTraceKey(sPenName, nTraceType);
MapValueSet(sActiveTraceMap, sTraceKey, 0);
ELSE
nSkippedTraces = nSkippedTraces + 1;
END
END

Next modify the _TrendPage_UpdateEquipmentTraceCount call after the for loop to:

// Need to manually update active equipment count as PenCreated is suppressed
_TrendPage_UpdateEquipmentTraceCount(hSelectedEquipment, nTraceCount - nSkippedTraces);

Lastly, make sure you create two local variables to the function:
INT nSkippedTraces = 0;
STRING sTraceKeyTest;

With the earlier changes to not clear the pens and the above, you will now be able to additively add pens.
Don't forget to add protection to this function to not exceed "l_nMaxActiveTraces". Add a msgbox to be nice to operator when that occurs. There are two situations to take care of:
1. You are already at max active traces and therefore no traces were added
2. current + new traces will yield only some of the traces are added.

cheers,

bradley