AFX SERIES® OPERATION MANUAL
SECTION 8:
Entire Contents Copyright
2018 by Pacific Power Source, Inc. (PPS)
• All Rights Reserved • No reproduction without written authorization from PPS.
AFX Series Power Source Operation Manual
Page 319 of 402
8.12.2
Status Event Register (ESR)
Events reported by the STANDARD EVENT STATUS register may be queried via the *ESR?
command. Reading the ESR register clears it. The EVENT STATUS summary bit in the STATUS
BYTE (STB) will be set when an unmasked EVENT STATUS bit goes true.
BIT
NAME
DEFINITION
7
PON
POWER ON indicates Input power was just applied
6
URQ
USER REQUEST indicates "LOCAL" key was just pressed
5
CME
COMMAND ERROR indicates invalid command or query received
4
EXE
EXECUTION ERROR indicates can't execute command with data received
3
DDE
DEVICE DEPENDANT ERROR indicates UPC not properly configured
2
QYE
QUERY ERROR indicates cannot respond with data
1
RQC
REQUEST CONTROL - not used
0
OPC
OPERATION COMPLETE indicates previous operation complete
Table 8-5: Status Event Register (ESR)
Setting an EVENT STATUS ENABLE (ESE) bit true unmasks the EVENT bit in the ESR. Also see
:SYSTem:ERRor? query for relevant information.
Figure 8-3: Standard Event Register (ESR) Model
