Keithley 2000 User Manual

5-54 SCPI Command Reference
Questionable Event Register:
Bits B0 through B3 — Not used.
Bit B4, Temperature Summary (Temp) — Set bit indicates that an invalid
reference junction measurement has occurred for thermocouple temperature
measurements.
Bits B5, B6 and B7 — Not used.
Bit B8, Calibration Summary (Cal) — Set bit indicates that an invalid cal-
ibration constant was detected during the power-up sequence. The instru-
ment will instead use a default calibration constant. This error will clear after
successful calibration of the instrument.
Bits B9 through B13 — Not used.
Bit B14, Command Warning (Warn) — Set bit indicates that a Signal Ori-
ented Measurement Command parameter has been ignored.
NOTE Whenever a questionable event occurs, the ERR annunciator will
turn on. The annunciator will turn off when the questionable event
clears.
Cal
B13 - B9 B8B15 B14
(2 )
8
256
(2 )
14
16384
0/10/1
Warn
B7 - B5
0
Temp
B4
(2 )
4
16
0/1
B3 - B0
Bit Position
Event
Decimal Weighting
Value
Events : Warn = Command Warning
Cal = Calibration Summary
Temp = Temperature Summary
Value : 1 = Questionable Event Bit Set
0 = Questionable Event Bit Cleared
Figure 5-5
Questionable
event register

Keithley 2000 Specifications

General

Digits	6.5
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	100 Ω to 100 MΩ
Connectivity	IEEE-488 (GPIB)
Display Type	VFD