You denied they could've found a code. Well the code is there sorry.
As I suspected it's quite a bit more complex than just a square wave and they're 3 cell directional.
These sensors actually imbed some data in their output. They effectively modulate the current (2 wire sensor) to form various pulses during each step on the target. It's a lot of information for a little 2 wire sensor.
https://www.newtis.info/tisv2/a/en/e...c-unit/26K6m4k
Still looking into why that coding option even exists. That's all I'm curious about and you're getting mad.