Fan Speed Monitoring - Keysight U2781A User Manual

Fan Speed Monitoring

The U2781A USB modular instrument chassis is also integrated with a fan speed
control circuit. It is used to monitor the fan status and speed. The control circuit
communicates with backplane USB device via I
To query the fan status, send the SCPI command below:
To query the fan speed in revolutions per minute (rpm), send the SCPI command
below:
Keysight U2781A User's Guide
SYSTem:FSTATus? {1|2}
SYSTem:FSPeed? {1|2}
Features and Functions
2
C interface. Refer to
2
Figure 2-8.
39