9.4 Message Reference
143
99
Messages specific to the RS-232C or GP-IB interface are identified by their corre-
sponding symbols.
9.4.1 Common Command
Clearing of Status Byte Register and Related Queues (Except Output Queue)
Syntax
(Command)
∗CLS
This clears event register compatible to the respective bytes of the
status byte register. Status byte registered is also cleared.
Error
If the data parameters are set after this command, a command error occurs.
Note
The output queue is not affected.
The output queue, the various enable registers and MAV bit 4 of the
Status Byte Register are unaffected.
Read and Clear the Standard Event Status Register (SESR)
Syntax
(Query)
∗ESR?
Returns the contents of the SESR as an NR1 value from 0 to 255,
then clears register contents.
(Response)
<0 to 255 (NR1)>
Example
(Query)
∗ESR?
(Response)
32
Bit 5 of the SESR was set to 1.
Note
A header is not added to the response message.
128643216 8 4 2 1
bit 7bit 6bit 5bit 4bit 3bit 2bit 1bit 0
PON unused CME EXE DDE QYE unused unused
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