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7 - Programming the DC Source
86
Table 7-1. Bit Configurations of Status Registers
Bit Signal Meaning
0
5
8
9
10
11
12
CAL
WTG
CV
CV2
CC+
CC-
CC2
Operation Status Group
The dc source is computing new calibration constants
The dc source is waiting for a trigger
The dc source is in constant voltage mode
Output 2 is operating in constant voltage mode
The dc source is in constant current mode
The dc source is in negative constant current mode
Output 2 is operating in constant current mode
0
1
3
4
5
8
9
10
12
14
OV
OCP
FP
OT
OS
UNR2
RI
UNR
OC2
MeasOvld
Questionable Status Group
The overvoltage protection has tripped
The overcurrent protection has tripped
A front panel key has been depressed while in local mode
The overtemperature protection has tripped
An open sense lead has been detected
Output 2 is unregulated
The remote inhibit state is active
The output is unregulated
Output 2 overcurrent protection has tripped
Current measurement exceeded capability of low range
0
2
3
4
5
7
OPC
QYE
DDE
EXE
CME
PON
Standard Event Status Group
Operation complete
Query error
Device-dependent error
Execution error
Command error
Power-on
3
4
5
6
7
QUES
MAV
ESB
MSS
RQS
OPER
Status Byte and Service Request Enable Registers
Questionable status summary bit
Message Available summary bit
Event Status Summary bit
Master Status Summary bit
Request Service bit
Operation status summary bit
Operation Status Group
The Operation Status registers record signals that occur during normal operation. As shown below, the
group consists of a Condition, PTR/NTR, Event, and Enable register. The outputs of the Operation Status
register group are logically-ORed into the OPERation summary bit (7) of the Status Byte register.
Register Command Description
Condition
STAT:OPER:COND?
A register that holds real-time status of the circuits being monitored. It is a
read-only register.
PTR Filter
STAT:OPER:PTR <n>
A positive transition filter that functions as described under
STAT:OPER:NTR|PTR commands in chapter 8. It is a read/write register.
NTR Filter
STAT:OPER:NTR <n>
A negative transition filter that functions as described under
STAT:OPER:NTR|PTR commands in chapter 8. It is a read/write register.
Event
STAT:OPER:EVEN?
A register that latches any condition that is passed through the PTR or NTR
filters. It is a read-only register that is cleared when read.
Enable
STAT:OPER:ENAB <n>
A register that functions as a mask for enabling specific bits from the Event
register. It is a read/write register.