KEPCO EL Series Electronic Load Operator Manual P/N 243-1295 Firmware Version 3.63 through 3.86 - Manual (Page 62)

A-4
SERIES EL 070312
A.11 *SRE? — SERVICE REQUEST ENABLE QUERY
*SRE?
Syntax: *SRE? Response: = value from 0 - 255 per Table A-3.
Description: Reads the Service Enable Register. Used to determine which events of the Status Byte Register are
programmed to cause the power supply to generate a service request (1 = set = function enabled, 0 =
reset = function disabled). Related Commands: *SRE, *STB?
A.12 *STB? — STATUS BYTE REGISTER QUERY
*STB?
Syntax: *STB? Response: value from 0 to 255 per Table A-3.
Description: Reads Status Byte Register without clearing it. This Query reads the Status Byte Register (bit 6 =
MSS) without clearing it (1 = set = function enabled, 0 = reset = function disabled). The register is
cleared only when subsequent action clears all set bits. MSS is set when the power supply has one or
more reasons for requesting service. (A serial poll also reads the Status Byte Register, except that bit
6 = RQS, not MSS; and RQS will be reset.)
A.13 *WAI — WAIT COMMAND
*WAI
Syntax: *WAI
Description: Causes the load to wait until all previously issued commands and queries are complete before execut-
ing subsequent commands or queries. This command can be used to guarantee sequential execution
of commands and queries. When all pending operations are complete (all previous commands have
been executed, the WAI command is completed and execution of subsequent commands can con-
tinue.