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8 – Language Dictionary
Status Commands
Status commands program the dc source status registers. The dc source has three groups of status
registers; Operation, Questionable, and Standard Event. The Standard Event group is programmed with
Common commands as described later in this section. The Operation and Questionable status groups
each consist of the Condition, Enable, and Event registers and the NTR and PTR filters. Chapter 7
explains how to read specific register bits and use the information they return.
STATus:PRESet
This command sets all defined bits in the Status Subsystem PTR registers and clears all bits in the
subsytem NTR and Enable registers.
Command Syntax STATus:PRESet
Parameters None
Examples STAT:PRES STATUS:PRESET
Table 8-4. Bit Configuration of Operation Status Registers
Bit Position
15–12
Bit Name
not
used
Bit Weight
CAL = The dc source is computing new calibration constants.
WTG = The dc source is waiting for a trigger.
CV = The dc source is operating in constant voltage mode.
CC+ = The dc source is operating in constant current mode.
CC = The dc source is operating in negative constant current mode.
STATus:OPERation?
This query returns the value of the Operation Event register. The Event register is a read-only register,
which holds (latches) all events that are passed by the Operation NTR and/or PTR filter. Reading the
Operation Event register clears it.
Query Syntax STATus:OPERtion[:EVENt]?
Parameters None
Returned Parameters <NR1>(Register Value)
Examples STAT:OPER?
Related Commands *CLS
STATus:OPERation:CONDition?
This query returns the value of the Operation Condition register. That is a read-only register, which holds
the real-time (unlatched) operational status of the dc source.
Query Syntax STATus:OPERation:CONDition?
Parameters None
Examples STAT:OPER:COND? STATUS:OPERATION:CONDITION?
Returned Parameters <NR1> (register value)
100
11
10
9
CC-
CC+
not
used
2048
1024
STAT:OPER:NTR
8
7-6
5
CV
not
WTG
used
256
32
STATUS:OPERATIONAL:EVENT?
STAT:OPER:PTR
4-1
0
not
CAL
used
1
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