ILX Lightwave LDC-3916338 User Manual page 86

¨ Front Panel
n Remote
The LAS:TOLerance command sets the selected module's laser control tolerance parameters.
SYNTAX DIAGRAM
:
LAS
Two <nrf values>; the first represents the measurement window, in mA, µA, or mW, depending
PARAMETERS
on the laser control mode. The second parameter represents the time window, in seconds.
POINTS OF
INTEREST The range of the first parameter, the tolerance window, is 0.01 to 500.0. The units of this
parameter depend on the control mode. In current mode, the units are mA, in IPD mode the
units are µA. If the mode is constant power (P), the first parameter is in mW. The range of the
second parameter, the time window, is 0.1 to 50.0.
The LDC-3916338 Laser Diode Current Source defaults to a tolerance of 100 mA, µA, or mW, for
5 seconds, unless changed by the LAS:TOLerance command.
WARNING: If the tolerance is set too tight, the output may never reach tolerance.
EXAMPLES "LAS:LDI 750;LAS:TOL 0.5,1;LAS:OUT ON" -action: the laser current will be in tolerance
when it is within 0.5 mA of 750.00 mA for a period of 1.0 second, at which point the In Tolerance
bit in the Laser Condition Status register will be set.
¨ Front Panel
n Remote
The LAS:TOLerance? query returns the selected module's laser control tolerance parameters.
SYNTAX DIAGRAM
PARAMETERS None. The response is two <nrf values> representing the tolerance parameters. The first
represents the tolerance window, in mA, µA, or mW, (depending on the mode). The second
represents the tolerance duration, in seconds.
POINTS OF
INTEREST The laser tolerance specification is also used in the laser status event and condition registers,
and may be tested by using the appropiate query.
EXAMPLES "LAS:TOL?" -response: "0.2,1.0", means the selected module has a laser tolerance window of
0.2 mA, 0.2 µA, or 0.2 mW (depending on the mode) with a duration of 1.0 seconds.
COMMAND REFERENCE
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:
TOL
:
:
LAS
PAGE 41
LAS:TOLerance
<white <nrf
,
space> value>
LAS:TOLerance?
?
TOL
<nrf
value>
CHPT 4