The behaviour of the single value channels when storing with Multi file option is different depending on how you want to read the data.
In the examples below, we will use setup with three single value channels, MIN, MAX and AVE of the time channel and the synchronous channel "Signal" which is actually a formula multiplied with a single value channel. You can find the basic descriptions of channel types in this solution. The files used in the examples are set to start a new file every 5 seconds.
Example No.1 - all the channels are calculated online during measurement. We open the fourth consecutive file.
When only one single multi file is opened, the data from the beginning of the acquisition until the end of the file is taken into account for the calculation of single value channel. To calculate the channels only from the data of the opened file, you need to do an offline recalculation. In the next step another calculation of the channel “Signal” needs to be performed if you want the calculation to take only one value of the single value channel and not the current values during the calculation.
Example No.2 - all the channels are recalculated online during measurement. We open all multi files at once (
(this example applies when you open two or more multi files at once)
When all multi files are opened at once, all the single value channels are automatically set to offline. In the next step another calculation of the channel “Signal” needs to be performed if you want the calculation to take only one value of the single value channel and not the current values during the calculation.
When the channel “Signal” is recalculated and changes are saved, this affects all individual files.
When a single multi file is opened after the change all the single value channels are set to "Offline" and the amplitude of the channel “Signal” is the same in all files (the same amplitude as when you open all multifiles)
