Keithley 708B Reference Manual page 429

Section 7: Command reference
Bit Value
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
status.MASTER_SUMMARY_STATUS
status.MSS
B7 status.OPERATION_SUMMARY
status.OSB
In addition to the above values, nodeEnableRegister can be set to the decimal equivalent of the bit to set. To
set more than one bit of the register, set nodeEnableRegister to the sum of their decimal weights. For
example, to set bits B0 and B7, set nodeEnableRegister to 129 (1 + 128).
Bit
Binary value
Decimal
Weights
Example 1
nodeEnableRegister = status.MSB + status.OSB
status.node_enable = nodeEnableRegister
Example 2
-- decimal 129 = binary 10000001
nodeEnableRegister = 129
status.node_enable = nodeEnableRegister
Also see
status.condition
status.system.*
Status byte and service request (SRQ)
7-176
B7 B6
0/1 0/1
128 64
7 6
(2 ) (2 )
(on page 7-173)
(on page 7-190)
(on page C-15)
Models 707B and 708B Switching Matrix Reference Manual
Description
Set summary bit indicates that an error or status message
is present in the Error Queue.
Bit 2 decimal value: 4
Set summary bit indicates that an enabled questionable
event has occurred.
Bit 3 decimal value: 8
Set summary bit indicates that a response message is
present in the Output Queue.
Bit 4 decimal value: 16
Set summary bit indicates that an enabled standard event
has occurred.
Bit 5 decimal value: 32
Set bit indicates that an enabled Master Summary Status
(MSS) bit of the Status Byte Register is set.
Bit 6 decimal value: 64
Set summary bit indicates that an enabled operation event
has occurred.
Bit 7 decimal value: 128
B5 B4 B3
0/1 0/1 0/1
32 16 8
5 4 3
(2 ) (2 ) (2 )
Sets the MSB and OSB bits of the status
node enable register using constants.
Sets the MSB and OSB bits of the status
node enable register using a decimal
value.
B2 B1 B0
0/1 0/1 0/1
4 2 1
2 1 0
(2 ) (2 ) (2 )
707B-901-01 Rev. A / August 2010