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Operation
3–12 TM-XR9B-01XN
IMAX <current> Sets an upper soft limit on the supply’s programmed output current. If the soft limit
is exceeded, or if the soft limit value is lower than the present output current
setting, the supply will ignore the command, turn on the ERR LED, and set the
ERR bit in the bit registers.
Range: 0 to model maximum output current (IMAX)
Initial value: model IMAX
IMAX? Asks for the supply’s soft current limit setting.
Response: IMAX <current>
IOUT? Measures the supply’s actual current output using the built-in current readback
circuitry.
Response: IOUT <current>
IRDAT
<Ilo>,<Ihi>
Calculates and records the slope and offset for readback voltage using IRLO and
IRHI data. Set CMODE ON before using this command. See also the calibration
procedures in Chapter 4.
<Ilo> and <Ihi> are in <current> format.
IRHI The power supply outputs a current value to an external device connected as part of
the calibration procedure and records a current readback value internally. These
values are at the high end of the programmed current range. Refer to the output
value as IRHI and record it to use as input with the IRDAT command. Set
CMODE ON before using this command. See also the calibration procedures in
Chapter 4.
IRLO The power supply outputs a current value to an external device connected as part of
the calibration procedure and records a current readback value internally. These
values are at the low end of the programmed current range. Refer to the output
value as IRLO and record it to use as input with the IRDAT command. Set
CMODE ON before using this command. See also the calibration procedures in
Chapter 4.
ISET <current> Sets the power supply’s output current in amps (default) or in milliamps. This
programmed current is the actual output in CC mode or the current limit in CV
mode.
Range: 0 to model maximum output current (IMAX)
Initial value: 0 amps
ISET? Asks for the supply’s present output current setting. Does not apply to current
settings which are being held. See HOLD command.
Response: ISET <current>
Table 3-7
Command Reference
TM-XR9B-01XN.book Page 12 Monday, April 19, 2004 9:00 AM