Keithley 3706A Reference Manual

Series 3700A System Switch/Multimeter Reference Manual Appendix C: Status model
3700AS-901-01 Rev. D/June 2018 C-9
Questionable summary bit (Questionable event register)
The summary bit of the questionable event register provides enabled summary information to Bit B3
(QSB) of the status byte.
Figure 183: Questionable event register
As shown above, there is only one register set associated with the questionable status. Attributes are
summarized in status.questionable.* (on page 11-385). Keep in mind that bits can also be set by
using numeric parameter values. For details, see Programming enable and transition registers (on
page C-14).
For example, any of the following statements will set the thermal aspect enable bit of a card in slot 1:
status.questionable.enable = status.questionable.S1THR
status.questionable.enable = status.questionable.SLOT1_THERMAL
status.questionable.enable = 512
The following command will request the questionable enable register value in numeric form:
print(status.questionable.enable)
The bits used in this register set are described as follows:
• SxTHR: Set bit indicates the thermal aspect of the card in slot x is in question, where x = 1 to 6.

Keithley 3706A Specifications

General

Model	3706A
Category	System Switch/Multimeter
Voltage Range	100 nV to 300 V
Basic DC Voltage Accuracy	0.0035%
Basic Resistance Accuracy	0.01%
Maximum Channels	576
Maximum Voltage	300 V
Connectivity	LAN, USB, GPIB
Interface	LAN, USB, GPIB
Switching Matrix	Yes
Channels	576 (6-slot mainframe)
Maximum Current	3 A