How to reset 5221, 5222 and 5223 parameters (G54)?

Todd Zuercher wrote: Let's say that your machine is located at the machine coordinate position (G53) X5.32 Y3.45 Z-2.34 and the G54 system is active. Issuing G10L20P1X0Y0Z0 will make the DRO show X0 Y0 Z0 at that point. Issuing G10L2P1X0Y0Z0 will make the DRO show X5.32 Y3.45 Z-2.34 .

Interesting. I still have to understand how DRO works without encoders but this is another matter. :laugh:
Many thanks and happy new year.

The DRO works pretty much the same without encoders as they do with, so long as the stepmotors don't loose position.