LI-COR LI-7500, Instruction Manual

Page: 120 / 155

Appendix D D-1
Configuration Grammar
Introduction
This section describes the protocol used by the LI-7500 to communicate via RS-232, for both
configuration and data output purposes. Commands sent to the LI-7500 have a certain
structure that must be followed, and data sent by the LI-7500 comes packaged in a particular
way. For example, to set the Bandwidth to 10Hz, the following string
(Outputs(BW 10))
should be sent followed by a line feed character (decimal 10). Each command begins with a
left parenthesis ‘
(
‘, and ends with a right parenthesis ‘
)
’. Some commands, such as
(BW...)
contain a single value, while other commands, such as
(Outputs...)
, can contain
one or more commands. The parentheses mark the start and stop of the command, and extra