I'm talking to a GS3 and the GSREGRD list is missing Power factor angle. (P21.10)
I am guessing that the Do-more is mis-configured. Check the Do-more I/O Configuration.
In System Configuration, dialog, in the tree, get to
I/O Configuration
Ethernet I/O Master
Your GS-EDRV100
You should see a GS3 like below, but I am guessing that it is currently configured as GS1.
To change the drive type, right click on the drive and the context menu should let you Select Drive Type (pick DURApulse GS3).
The GSREGRD instruction's register selection dialog should also show the Drive type. The picture below shows the GSREGRD Read GS3 Register dialog box (note the title bar and the P21.10 entry). A configured GS1 drive will NOT have the P21.10 entry in its dialog.