Chapter 4 _________________________________________________________________ Operation
VAISALA ________________________________________________________________________ 63
CHAPTER 4
OPERATION
FS11 Visibility Sensor is a fully automatic instrument that does not need
any regular operation by the user. The measurement parameters set at the
factory do not usually need to be changed.
The FS11 visibility messages are either sent automatically or polled by
the host computer.
The FS11 system parameters can be set with the SET command. Other
commands can be used to display system status and other maintenance
data. All commands can be given either through the Maintenance line or
the Data line. Commands given through the Maintenance line do not
interfere with the Data line visibility message sending.
FS11 Commands
NOTE
All command parameters must be separated from each other by a space
character
, and every command must end with pressing ENTER.
Entering and Exiting Command Mode
Before any commands can be given to the FS11 sensor, the maintenance
or data line of FS11 has to be assigned to the operator. Otherwise it is
assigned to automatic messages or polled communication. The user
enters the command mode with command OPEN.
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