ILX Lightwave LDC-3700C Series, User Manual, Page: 66 / 176

R E M O T E O P E R A T I O N
Command Syntax
50
LDC-3700C Series
C H A P T E R
3

There are no default values for omitted parameters. If a command is expecting a
parameter and none is entered, an error is generated.
For further clarity in programming, the (Boolean) values of one (1) and zero (0)
may be used or their names as indicated in the following table.
If multiple parameters are expected, they should be separated with commas. For
example, to set the Steinhart-Hart constants on the LDC-3700C Series Laser
Diode Controller (C1, C2, and C3) the following command could be sent:
TEC:CONST 1.111, 2.004, 0.456
If not all of the parameters need to be changed the other parameters may be
omitted. For example:
TEC:CONST 1.111, , 0.456
A query has no space between the mnemonic and the question mark, as in:
LAS:LDI?
Command Tree Structure
Many of the LDC-3700C remote commands require a compound structure. This is
done to distinguish between different commands of the same type and to
designate the side of the LDC-3700C the command is intended; TEC
(thermoelectric controller) or LAS (laser current source). The first mnemonic
opens a path to a set of commands relating to that path. The second mnemonic
then defines the actual command.
The compound command structure is similar to a directory path structure, as
found in DOS. For example, commands which deal with the LDC-3700C TEC
have the path "TEC:", as in the command to set the TEC display to measured
resistance,
TEC:DIS:R
Table 3.1 Substitute Parameter Names
SUBSTITUTE NAME VALUE
ON 1
OFF 0
OLD 1
NEW 0
TRUE 1
FALSE 0
SET 1
RESET 0