User`s guide

Chapter 2 Front Panel Operations RIGOL
M300 User’s Guide
2-71
Channel Information
Press
at the front panel again and the instrument enters the channel
information display interface.
Figure 2-36 Relay Cycle/Alarm Info/Error Info
1 Relay Cycle
M300 measures relay cycles and stores the result in the non-volatile memory of
the corresponding module. When starting up and detecting the modules
currently insterted, M300 reads the cycle of each relay. Via this interface, you
can view the statistical results to ensure proper maintenance of the relay. For
more information, please refer to the schematic diagrams of the modules in
“Module Control”.
2 Alarm Information
Read and clear the first 100 alarm messages (generated on 4 alarm channels) of
the last scan, including the alarm reading, the time, channel and mode of the
alarm as well as the alarm channel.
3 Error Information
Read and clear the first 20 error messages in the error queue.
When remote command grammar error or hardware error is detected, the
system displays “Error” in the user interface and stores the first 20 error
messages in the error queue of the instrument. If error is still generated, the last
error message in the error queue will be replaced by “Error queue overflow”. At
this point, the instrument will not store the new error messages unless error
messages in the error queue are removed. Turning off the instrument (or using
the remote command *CLS) can clear the error queue.