So, for current symbol ER2 (default in NT) I removed mapping for OpenTick and created new symbol ER2OPEN which I mapped only with OpenTick.
It looks like datafeeds are the same, except problems with more (and duplicate ticks in OpenTick). In OpenTick chart there are all ticks like in eSignal, but for every timestamp there is also their count. But it looks that it is only problem of NT and not OpenTick
eSignal:
20080416 000004;697.1;5
20080416 000309;697.1;1
20080416 000326;696.9;1
20080416 000326;696.9;4
OpenTick:
20080416 000004;697.1;5
20080416 000004;697.1;5
20080416 000309;697.1;1
20080416 000309;697.1;1
20080416 000326;696.9;1
20080416 000326;696.9;4
20080416 000326;696.9;5
So for timestamp 20080416 000309 there is one tick (volume = 1) in eSignal. But in OpenTick there are two ticks. Also for timestamp 20080416 000326 there are two real ticks (with volumes 1 and 4), but in OpenTick there is also third tick with count volume value (so there is volume 1 + 4 + 5).
As you can see on attached screenshot (Range 10 Chart), there are doubled volumes from OpenTick. Source data directly from OpenTick (without using NT) do not have these counted values...
Thank you for your help...
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