I agree. There is nothing wrong with the PLC referencing
its (built-in 24VDC) power supply to ground. I am talking about the PLC referencing
MY power supply to ground. I am referring to this part:
"For 1766-L32BXB and 1766-L32BXBA controllers, the VDC NEUT or common terminal of the power supply is also connected to chassis ground internally."
That's the terminal for the INCOMING power, supplied
TO the PLC (on 24VDC models), not the built-in supply for sensors.
I just find it odd that they would intentionally ground that terminal...
Not that big of a deal, but just wanted to point out the fact that this terminal is grounded. I discovered this in the manual after wondering why my floating supply was no longer floating.
-Eric