Hello, this is an embarrassingly silly question but I cannot figure out what I am supposed to put in the “Value” field of a math operation for processing an input before logging it.
I want to pass the input of a CT sensor through Absolute Value before logging it (the sensor is clipped the wrong way around and gives negative values and it’s awkward to flip it around so I am doing it in software).
When selecting the Absolute value operation, I am given a text field where I am supposed to enter something but I don’t have the faintest idea what that something is and the interface is not terribly helpful about what it expects me to enter. I have unsuccessfully tried various things like “emontx3cm15: P1” and similar as shown in the image below:
Can someone please tell me what I am supposed to enter in this value field?