Promax FA-405 Manual page 74

SB-
Function: To decrease one unit from the present setting of +%.
Syntax: SB-<cr> HEX = 53 42 2D 0D
Explain: When the message of SD-<cr> is sent to the power supply from
computer, the power supply will decrease one unit from the present
setting of +% immediately
Example: The present +% value is at 105, after the command is sent from
computer, the +% value is at 104.
SD+
Function: To add one unit to the present setting of -%.
Syntax: SD+<cr>
When the message of SD+<cr> is sent to the power supply from
Explain:
computer, the power supply will add one unit to the present setting of -%
immediately
Example: The present -% value is at 90, after the command is sent from computer,
the -% value is at 91.
SD-
Function: To decrease one unit from the present setting of -%.
SD-<cr>
Syntax:
Explain: When the message of SD-<cr> is sent to the power supply from
computer, the power supply will decrease one unit from the present
setting of -% immediately
Example: The present -% value is at 90, after the command is sent from computer,
the -% value is at 89.
SV
Function: Set the output voltage value.
Syntax: SV xx.xx
x is a number between 0 and 9.
Page 30
HEX = 53 44 2B 0D
HEX = 53 44 2D 0D
USER'S MANUAL. FA-405
12/2003