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6
not
aected
by
the
condition
that
caused
the
SRQ.
The
serial
poll
command
transfers
the
value
of
the
Status
Byte
register
to
a
variable
.
*CLS
Syntax
*CLS
Denition
The
*CLS
command
clears
the
following:
Standard
event
status
register
(ESR)
Status
byte
register
(STB)
The
Error
Queue
After
the
*CLS
command
the
instrument
is
left
waiting
for
the
next
command.
The
instrument
setting
is
unaltered
by
the
command,
though
*OPC /*OPC?
actions
are
canceled.
If
the
*CLS
command
occurs
directly
after
a
program
message
terminator
,
the
output
queue
and
MA
V
,
bit
4,
in
the
status
byte
register
are
cleared,
and
if
condition
bits
2-0
of
the
status
byte
register
are
zero
,
MSS,
bit
6
of
the
status
byte
register
is
also
zero
.
Example
OUTPUT
724;"*CLS"
*ESE
Syntax
*ESE
<wsp><value>
0
value
255
Denition
The
*ESE
command
sets
bits
in
the
standard
event
status
enable
register
(ESE)
that
enable
the
corresponding
bits
in
the
standard
event
status
register
(ESR).
The
register
is
cleared:
At
power-on
By
sending
a
value
of
zero
The
register
is
not
changed
by
the
*RST
and
*CLS
commands
.
Remote
Commands
6-7