M9B-HFS OPERATION
M9B-HFS INTERFACE
3-4
Release 1.0 (97/10)
Table 3.2-2 Query Commands
Command
Description
AUXA?
Asks for the state of the set value for the AUXA command.
AUXB?
Asks for the state of the set value for the AUXB command.
CMODE?
Asks for the power supply’s calibration mode status.
DLY?
Asks for the programmable time delay setting before the supply reports fault
conditions.
ERR?
Asks for the most recent remote programming error which occurred in the supply
since the last time the error query command (ERR?) was used.
FOLD?
Asks for the supply’s present foldback setting.
HOLD?
Asks for the present hold mode setting.
ID?
Asks for the power supply’s model name
and master EPROM version.
IMAX?
Asks for the supply’s soft current limit setting.
IOUT?
Measures the actual current output for the supply.
ISET?
Asks for the supply’s present output current setting.
OUT?
Asks for the present enabled/disabled status of the supply’s output.
OVSET?
Asks for the supply’s present over voltage protection limit.
REN?
Asks for the state of the remote enable control.
ROM?
Asks for the version number of the master and slave EPROMs on the interface
PCB.
VMAX?
Asks for the supply’s soft voltage limit setting.
VOUT?
Measures the supply’s actual voltage output.
VSET?
Asks for the supply’s present output voltage setting.
Table 3.2-3 Calibration Commands
Command
Description
CMODE
Places the supply into calibration mode.
IDATA
Calculates the slope and intercept for current programming.
IHI
Sets the current output to the high calibration point.
ILO
Sets the current output to the low calibration point.
IRDAT
Calculates the slope and intercept for current readback.
IRHI
Sets the current output to the high readback point.
IRLO
Sets the current output to the low readback point.
OVCAL
Calibrates the over voltage protection (OVP).
VDATA
Calculates the slope and intercept for voltage programming.
VHI
Sets the voltage output to the high calibration point.
VLO
Sets the voltage output to the low calibration point.
VRDAT
Calculates the slope and intercept for voltage readback.
VRHI
Sets the voltage output to the high readback point.
VRLO
Sets the voltage output to the low readback point.
Table 3.2-4 Status Commands
Command
Description
ASTS?
Asks for the supply’s accumulated status register.
FAULT?
Asks for the supply’s fault register for the status of preset operating conditions.
MASK
Disables the supply's previously unmasked operating conditions from setting bits
in the fault register.
STS?
Asks for the supply’s present status register.
UNMASK
Enables you to select those supply's operating conditions that you are most
interested in monitoring for fault occurrence.
UNMASK?
Asks for the supply's fault conditions which are currently enabled (unmasked).
