Keithley 2100 User Manual page 137

Model 2100 6 1/2-Digit Resolution Digital Multimeter User's Manual
Table B-2
Definition of the Standard Event Register
3. Device error
4. Execution error
5. Command error
6. Not used
7. Power on
The following conditions will clear the standard event register:
The following conditions will clear the standard event enable register:
NOTE
About the Questionable Data Register
The questionable data register reports the quality of the DMM's measurement results, as well
overload conditions and high/low limit test results. Through the enable register, all of the conditions
can be reported in the questionable data summary bit. At the moment, users have to write a
decimal value by using the STATus:QUESTionable:ENABle command to set the enable register
mask.
The following table shows the definitios for the Standard Event Register (see
Table B-3
Definition of the Standard Event Register
0. Voltage overload
1. Current overload
2. Not used
3. Not used
4. Not used
5. Not used
6. Not used
7. Not used
8. Not used
9. Ohms overload
10. Not used
11. Limit failed at LO
12. Limit failed at HI
13. Not used
14. Not used
15. Not used
2100-900-01 Rev. D / September 2011
8
16
32
64
128
• Users send a *CLS command.
• Users query the event register by using the *ESR? command.
• Users turn on the power, and have set the DMM previously by using the *PSC 1 command.
• Users execute a *ESE 0 command.
When the DMM is powered on, the standard event enable register will not be cleared if
users have set the DMM previously by using *PSC 0.
Decimal
Bit
Value
1
2
4
8
16
32
64
128
256
512
1024
2048
4096
8192
16384
32768
Return to
Error occurrence from a self-test, calibration, or reading over-
Error occurrence from an execution.
Error occurrence from a command's syntax.
Since the last time the event register was read or cleared,
power has been turned off and on.
Definition
Range overload on DC/AC volts, frequency, period, diode, or
ratio function.
Range overload on DC/AC current function.
Range overload on 2-/4-wired ohm function.
Reading is less than lower limit under limit test.
Reading is excess upper limit under limit test.
Section Topics
Appendix B: Remote Interface Reference
load.
Set to 0.
Table
Set to 0.
Set to 0.
Set to 0.
Set to 0.
Set to 0.
Set to 0.
Set to 0.
Set to 0.
Set to 0.
Set to 0.
Set to 0.
B-3).
B-25