Series 2600 System SourceMeters Reference Manual
Instrument Control Library 12-105
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2600S-901-01 Rev. A / May 2006
status.node_enable
Attribute
Status node enable register.
Usage
Reads status node enable register:
nodeenabreg = status.node_enable
Writes to system enable register:
status.node_enable = nodeenabreg
Set
nodeenabreg
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.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.MASTER_SUMMARY_STATUS
Sets (enables) MSS bit (B6).
status.MSS
Sets (enables) MSS bit (B6).
status.OPERATION_SUMMARY_BIT
Sets (enables) OSB bit (B7).
status.OSB
Sets (enables) OSB bit (B7).
nodeenabreg
can also be set to the decimal weight of the bit to be set. Examples:
To set bit B0 (MSB), set
nodeenabreg
to 1 (2
0
).
To set bit B2 (EAV), set
nodeenabreg
to 4 (2
2
).
To set bit B7 (OSB), set
nodeenabreg
to 128 (2
7
).
To set more than one bit of the register, set
nodeenabreg
to the sum of their decimal
weights. For example, to set bits B0 and B7, set
nodeenabreg
to 129 (1 + 128).
Remarks
• This attribute is used to read or write to the status node enable register.
• Reading the node enable status 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 node 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 enabled
system nodes. When an enabled status event occurs, it will set one or more enabled
system node bits of the system registers (see “
” registers).
• The status node enable register uses most of the same summary events as the
status byte. Bit B1(MSB) is not used, and bit B6 is used as Master Summary Status
(MSS). For details, see “
” register.
Details
See “
Status byte and service request (SRQ)
Example
Sets the MSB bit of the status node enable register:
status.node_enable = status.MSB
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