4 – 48
Remote Operation
1
Unlock Ethernet
ULOC(?)
{
i
}
Set (query) the ethernet command lockout
{
to
i
}
.
Upon power-up, the LDC500 defaults to
ULOC
0
, which
locks out
all remote commanding over the ethernet port. To enable ethernet
control, send the command
ULOC
1
.
When first connecting to the ethernet command port (port 8888), the
user’s application program should begin by sending
ULOC
1
. The
ULOC
command is the only command that can be processed over
ethernet while
ULOC
0
.
ULOC 1
Example:
Save User Parameters
SPAR
{
z
}
Save user settings to record
z
=
(
USER0 0
,. . . ,
USER8 8
).
The
SPAR
command stores all user instrument settings
except
remote
interface settings (such as TCP
/
IP address or baud rate). There are 9
user records available for saving instrument setups, numbered 0–8.
Front panel:
Q "P
AP? Q#
.
SPAR USER3
Example:
Restore User Parameters
GPAR
{
z
}
Restore user settings from record
z
=
(
USER0 0
,. . . ,
USER8 8
,
DEFAULT
9
).
The
GPAR
command restores all user instrument settings
except
re-
mote interface settings (such as TCP
/
IP address or baud rate). There
are 9 user records available for saving instrument setups, numbered
0–8. Additionally, the default settings for the LDC500 can be restored
by
GPAR
DEFAULT
. See (
*RST
, 4 – 51 ) for instrument settings after
GPAR
DEFAULT
.
Note that
GPAR
will not operate if either the TEC or LD is on.
Front panel:
Q 3
3 Q#
.
GPAR 2
Example:
LDC500 Series Laser Diode Controllers
