4.4
Commands
4 – 19
Local lockout
LOCL(?)
{
z
}
Set (query) the local lockout
{
to
z
=
(
LOCAL 0
,
REMOTE 1
,
LOCKOUT 2
)
}
.
The
LOCL
command provides control over user access to front-panel
control of the SR124. When
LOCL
REMOTE
or
LOCK
LOCKOUT
, the
REM
indicator will be lit; in this state, the user cannot control any
instrument functions from the front panel.
When in
LOCL
REMOTE
, the [Recall
/
Local] button acts as the “local”
function, bringing the SR124 back to the
LOCL
LOCAL
state with full
front-panel control. Note, however, that in
LOCL
LOCKOUT
, even the
[Recall
/
Local] button is disabled: only a remote command returning
the instrument to
LOCL
LOCAL
, or a power cycle, will restore front-
panel control.
Note that receipt of aa remote command terminator character places
the instrument into the
LOCL
REMOTE
state.
LOCL LOCKOUT
Example:
Reset
*RST
Reset the SR124 to its default configuration.
The following commands are internally excecuted upon receipt of
the
*RST
command:
•
PHAS
0.0
•
FMOD
•
FREQ
1000.0
•
SLVL
0.100
•
FRNG
FRNG 20
•
BION
OFF
•
BIAS
0.0
•
FORM
SINE
•
ISRC
A
•
IGND
GROUND
•
ICPL
DC
•
TYPF
FLAT
•
QFCT
Q1
•
IFFR
1000.0
•
IFTR
0
•
NCHD
0
•
SENS
S500MV
•
RMOD
LOWNOISE
•
OFLT
TC100MS
SR124
Analog Lock-In Amplifier
