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If you get no report from a sensor even after unplugging and plugging it back, the first thing to do is to determine if it is the port that is dead or the sensor.
For that, swap a working sensor with the Non-working one, then check if the problem follows the sensor or stays with the port. And I mean actually unclamp a working sensor from its circuit and clamp it on the circuit of the bad sensor, and vice versa. The Circuits must stay connected to the same port on the Vue, just the sensor being used need to be swapped.
The Vue calibration references the port, not the sensor, so no issue swapping sensors around, as long as the circuit being connected to the port does not change
If the problem follows the sensor, then the sensor is bad (I had one died on me once), if the problem stays with the port, then there may be a problem with the port of the Vue…
The CTs on the main leads are bi directional, so in the data file, energy exported to the grid is negative, and energy imported from the grid is positive.
Using a tool like excel, you can separate the positive values from the negative values.
The Total Energy Imported from the grid is the sum of all the positive values
The Total Energy Exported to the grid is the sum of all the negative values
If you were monitoring the sub panel with CTs on the lines going to it, but now will actually install CTS on everything inside that sub panel to monitor all the lines in it, then you should remove the CTs on the lines feeding the Sub panel, or you would be reporting the consumption twice.
There is also no need to keep them there, as you are getting the Sub panel consumption with the sum of all its loads.
