RIGOL DM3058 - Manual (Page 155)

RIGOL
Programming Guide for DM3058/DM3058E 5-6
Explanations:
VAC - Enables the AC voltage measurement function of main display.
VAC2 - Enables the AC voltage measurement function of vice display.
10. VDC
Command Format:
VDC
VDC2
Function:
The command enables the DC voltage measurement of both main and vice
display.
Explanations:
VDC - Enables the DC voltage measurement function of main display.
VDC2 - Enables the DC voltage measurement function of vice display.