Keithley 2651A

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