Tektronix Keithley SourceMeter 2470 Reference Manual

Appendix
B: Status model 2470 High Voltage SourceMeter Instrument Referen
ce Manual
B-12 2470-901-01 Rev. A / May 2019
The bits in the Status Byte Register are described in the following table.
Bit
Decimal
value
Bit name
When set, indicates the following
has occurred:
0
1
Measurement summary Bit (MSB)
An enabled questionable event
1
2
Not used
Not applicable
2
4
Error available (EAV)
An error is present in the error queue
(warning and information messages do
not affect this bit)
3
8
Questionable summary bit (QSB)
An enabled questionable event
4 16 Message available (MAV)
A response message is present in the
output queue
5
32
Event summary bit (ESB)
An enabled standard event
6
64
Request for service (RQS)/Master summary
status (MSS)
An enabled summary bit of the Status
Byte Register is set; depending on
how it is used, this is either the
Request for Service (RQS) bit or the
Master Summary Status (MSS) bit
7
128
Operation summary bit (OSB)
An enabled operation event
Service Request Enable Register
This register is programmed by the user and is used to enable or disable the setting of bit B6
(RQS/MSS) by the Status Summary Message bits (B0, B1, B2, B3, B4, B5, and B7) of the Status
Byte Register. As shown in the Status Byte Register (on page B-10
) topic, a logical AND operation is
performed on the summary bits (&) with the corresponding enable bits of the Service Request Enable
Register. When a logical AND operation is performed with a set summary bit (1) and with an enabled
bit (1) of the enable register, the logic “1” output is applied to the input of the logical OR gate and,
therefore, sets the MSS/RQS bit in the Status Byte Register.
You can set or clear the individual bits of the Service Request Enable Register by using the *SRE
common command or status.request_enable. To read the Service Request Enable Register,
use the *SRE? query or print(status.request_enable). The Service Request Enable Register
clears when power is cycled or a parameter value of 0 is sent with a status request enable command
(for example, a *SRE 0 or status.request_enable = 0 is sent). You can program and read the
S
RQ Enable Register using the following commands.
Description SCPI command TSP command
Read the Status Request Enable
Register
*SRE (on page A-7)
status.request_enable (on page
14-188)
Enable bits in the Status Request
Enable Register
*SRE (on page A-7)
status.request_enable (on page
14-188)

Tektronix Keithley SourceMeter 2470 Specifications

General

Brand	Tektronix
Model	Keithley SourceMeter 2470
Category	Measuring Instruments
Language	English