Keithley 2651A Reference Manual page 786

Appendix E: Status model
Master node service request: The following command enables the service request for the
measurement event:
status.request_enable = 1
The affected status register for the above command is indicated by label E (see following figure).
TSP-Link system (status model)
E-28
Model 2651A High Power System SourceMeter® Instrument Reference Manual
Figure 140: TSP-Link status model configuration example
A current limit event at Node 15 will set the RQS bit of the Status Byte of the Master Node.
Node 15 (Model 2651A) status registers
Measurement Event
Current Limit Summary
Current
Limit
SMUA
Event
A) Bit B1 enabled
Measurement Summary Bit (MSB)
Shared system summary registers (available to all TSP-Link nodes)
System Summary
Register 2
Node 15 B1
D) Bit B1 enabled
Master Node (Model 2651A) Status Byte and Service Request (SRQ)
Measurement Summary Bit (MSB)
Request for Service (RQS)
+
B1 Current Limit
(ILMT)
Status Byte
B0
System Summary
Register
Extension Bit
E) Bit B0 enabled
Status Byte
B0
B6
Measurement Event
Register
B1
B) Bit B1 enabled
Status Node
Enable
B0
&
C) Bit B0 enabled
B0
Service Request
Enable
B0
&
F) Bit B0 enabled
2651A-901-01 Rev. A / March 2011