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2600AS-901-01 Rev. B / September 2008
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19-195
Series 2600A System SourceMeter® Instruments Reference Manual
Section 19: Remote Commands
status.request_enable
Attribute
Service request enable register.
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage
Reads service request enable register:
servenabreg = status.request_enable
Writes to service request enable register:
status.request_enable = servenabreg
Set
servenabreg
to one of the following values:
0
Clears all bits.
status.MEASUREMENT_SUMMARY_BIT
Sets (enables) MSB bit (B0).
status.MSB
Sets (enables) MSB bit (B0).
status.SYSTEM_SUMMARY_BIT
Sets (enables) SSB bit (B1).
status.SSB
Sets (enables) SSB bit (B1).
status.ERROR_AVAILABLE
Sets (enables) EAV bit (B2).
status.EAV
Sets (enables) EAV bit (B2).
status.QUESTIONABLE_SUMMARY_BIT
Sets (enables) QSB bit (B3).
status.QSB
Sets (enables) QSB bit (B3).
status.MESSAGE_AVAILABLE
Sets (enables) MAV bit (B4).
status.MAV
Sets (enables) MAV bit (B4).
status.EVENT_SUMMARY_BIT
Sets (enables) ESB bit (B5).
status.ESB
Sets (enables) ESB bit (B5).
status.OPERATION_SUMMARY_BIT
Sets (enables) OSB bit (B7).
status.OSB
Sets (enables) OSB bit (B7).
servenabreg
can also be set to the decimal weight of the bit to be set. Examples:
To set bit B0 (MSB), set
servenabreg
to 1 (2
0
).
To set bit B2 (EAV), set
servenabreg
to 4 (2
2
).
To set bit B7 (OSB), set
servenabreg
to 128 (2
7
).
To set more than one bit of the register, set
servenabreg
to the sum of their decimal weights.
For example, to set bits B0 and B7, set
servenabreg
to 129 (1 + 128).
Remarks
• These attributes are used to read or write to the service request enable register.
• Reading the service request enable register returns a value. The binary equivalent of the
returned value indicates which register bits are set. The least significant bit of the binary number
is bit 0, and the most significant bit is bit 7.
• For example, assume value 129 is returned for the service request enable register. The binary
equivalent is 10000001. This value indicates that bit B0 (MSB) and bit B7 (OSB) are set.
• Assigning a value to this attribute enables one or more status events for service request. When
an enabled status event occurs, bit B6 of the status byte sets to generate an SRQ (service
request).
• The service request enable register uses most of the same summary events as the status byte.
Bit B6 (MSS) is not used by the enable register. For details, see
Details
Status byte and service request (SRQ)
Example
Sets the MSB bit of the service request enable register:
status.request_enable = status.MSB