LDC-3900 Series 37
CHAPTER 3
REMOTE OPERATION
The LDC-3900 Modular Laser Diode Controller can be used as a remotely
controlled laser diode testing instrument. Possible applications include automatic
L/I curve data gathering over a range of controlled temperatures.
In remote operating mode, the LDC-3900 Modular Laser Diode Controller offers
all of the features accessible from the front panel and some advanced features
which can only be accessed via the interface bus. In remote mode you have
access to commands for functions not found on the front panel, such as the INC or
DEC commands which automatically increment or decrement the set point by a
user-defined step value, calculation of measured temperature to 6-digit resolution,
and control of the conditions which cause the TEC and Laser controller outputs to
be shut off.
The GPIB interface allows bus control of the LDC-3900 Modular Laser Diode
Controller. Information can also be read by the host computer and printed or
stored. Other features include:
• A concise and straight-forward command set
• Full talk/listen capability
• Full serial poll capability, with SRQ
• Full local/remote capability including Local Lockout
• Meets ANSI/IEEE-488.2-1987 standards
This chapter is a guide to the syntax and usage of the various IEEE/488.2
common commands available for the LDC-3900 Modular Laser Diode Controller.
It also includes advanced programming tips for remote use with the device-
dependent commands, hardware diagrams, and other information relating to
remote operation.
This chapter is divided into three parts. The first part has the information for using
the GPIB with the LDC-3900 Modular Laser Diode Controller. It also has sections
for each common GPIB (ANSI/IEEE-488.2) command which is supported by the
LDC-3900 Modular Laser Diode Controller.
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