COMMAND REFERENCE
LDC-3900 Device-Dependent Commands
10_15 LDC-3900 Series 75
CHAPTER 4

Table 4.2 on page 75 lists all of the LDC-3900's device-dependent commands,
with the full path shown for each command and a brief explanation of its usage.
For more information, see LDC-3900 Device-Dependent Commands on page 75.
LDC-3900 Device-Dependent Commands on page 75 presents a more detailed
look at the LDC-3900 device-dependent commands, including syntax diagrams,
and example usage.
Common Commands
Another type of command is the common command. These commands are
common to instruments which support the ANSI-IEEE-488.2 standard and are not
necessarily reflected by front panel operations. Some of the common commands
are useful for advanced programming techniques, such as generating service
requests. However, common commands are not necessary for remote operation,
and the beginning programmer may chose to ignore them entirely. The common
commands for the LDC-3900 are documented in Chapter 3.
Two common commands which are reflected by front panel operations are *SAV
and *RCL. These commands remotely perform the same operations as when the
Save and Recall parameters are changed during Local (front panel) operation.
LDC-3900 Device-Dependent Commands
This section contains all of the device-dependent commands for the LDC-3900
Modular Laser Diode Controller, listed in alphabetical order. Sub-sections for each
path are presented, listing the commands which are legal for that path. All of the
LDC-3900's common commands and queries are listed in Common Commands
and Queries on page 48. The lower level remote interface messages are also
listed in Chapter 3.
Table 4.2 LDC-3900 Device-Dependent Command Summary
NAME
NUMBER OF
PARAMETERS EXPECTED
FUNCTION
BEEP 1 Enables the beeper, or beeps once.
BEEP? NONE Returns the enable status of the beeper.
CHECKSUM? NONE Returns a checksum value for the present configuration
of parameters.
DELAY 1 Used to create a delay in the execution of further
commands.
ERR? NONE Returns errors generated since the last query (up to
10).
LAS:ALL:CALMD 4 Used to set all channels' CAL PD (monitor responsivity)
constants
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