G100 Programing Response Question

[54Oval]

I'm using my own code to send commands and receive responses to my G-Rex. Periodically I get a strange response which I'm finding confusing.

Here’s the scenario:

I send motion command say x+100y+10000z+1000

Instead of returning the master axis "x" it returns a something like “px0y0z0a0b0c0”

If I read the next line It contains "x"

What exactly is that string?

-Dan