Keithley 2601B Reference Manual page 654

Section 7: TSP command reference
For information about .condition, .enable, .event, .ntr, and .ptr registers, refer to
page E-1) and
the following table.
Bit Value
B0 status.MEASUREMENT_SUMMARY_BIT
status.MSB
B1 status.SYSTEM_SUMMARY_BIT
status.SSB
B2 status.ERROR_AVAILABLE
status.EAV
B3 status.QUESTIONABLE_SUMMARY_BIT
status.QSB
B4
status.MESSAGE_AVAILABLE
status.MAV
B5
status.EVENT_SUMMARY_BIT
status.ESB
B6 Not used
B7 status.OPERATION_SUMMARY_BIT
status.OSB
As an example, to set bit B0 of the service request enable register, set status.request_enable =
status.MSB.
In addition to the above values, requestSRQEnableRegister can be set to the numeric equivalent of the bit
to set. To set more than one bit of the register, set requestSRQEnableRegister to the sum of their decimal
weights. For example, to set bits B0 and B7, set requestSRQEnableRegister to 129 (1 + 128).
Bit
Binary value
Decimal
Weights
Example 1
requestSRQEnableRegister = status.MSB +
status.OSB
status.request_enable = requestSRQEnableRegister
Example 2
-- decimal 129 = binary 10000001
requestSRQEnableRegister = 129
status.request_enable = requestSRQEnableRegister
Also see
Status byte and service request (SRQ)
status.condition
status.system.*
7-314
Enable and transition registers
B7 B6
0/1 0/1
128 64
7 6
(2 ) (2 )
(on page E-15)
(on page 7-254)
(on page 7-319)
Series 2600B System SourceMeter® Instrument Reference Manual
(on page E-19). The individual bits of this register are defined in
Description
Set summary bit indicates that an enabled event in the
Measurement Event Register has occurred.
Bit B0 decimal value: 1
This bit is only available on Models
2601B/2602B/2611B/2612B/2635B/2636B. Set summary
bit indicates that an enabled event in the System Summary
Register has occurred.
Bit B1 decimal value: 2
Set summary bit indicates that an error or status message
is present in the Error Queue.
Bit B2 decimal value: 4
Set summary bit indicates that an enabled event in the
Questionable Status Register has occurred.
Bit B3 decimal value: 8
Set summary bit indicates that a response message is
present in the Output Queue.
Bit B4 decimal value: 16
Set summary bit indicates that an enabled event in the
Standard Event Status Register has occurred.
Bit B5 decimal value: 32
Not applicable
Set summary bit indicates that an enabled event in the
Operation Status Register has occurred.
Bit B7 decimal value: 128
B5 B4 B3
0/1 0/1 0/1
32 16 8
5 4 3
(2 ) (2 ) (2 )
Uses constants to set the MSB and OSB
bits of the service request (SRQ) enable
register.
Uses a decimal value to set the MSB and
OSB bits of the service request (SRQ)
enable register.
Status register set contents
B2 B1 B0
0/1 0/1 0/1
4 2 1
2 1 0
(2 ) (2 ) (2 )
2600BS-901-01 Rev. B / May 2013
(on