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Technical Documentation and
User Instructions
Laser Mirror Scanner LMS-Q280i
6.3.5 Definition of Scan Pattern
6.3.5.1 Scan Pattern Basics
The scan pattern is mainly defined by the following parameters:
•
Start angle
•
Angular step width between measurements
•
Number of measurements forming a scan
Command
Range
Meaning
RF_START_Ln <Cr>
0
≤
n
≤
3599999
Setting the start angle for the Scan in
units of 0.0001 degree.
RF_NUMBER_L n <Cr>
1
≤
n
≤
XBMAX
1)
1)
see chapter
Setting the number of measurements
per line.
Note : In scanning mode the setting
of XB for the ECP data output (block
buffer size) is automatically set
equal to RF_NUMBER_L.
RF_DELTA_L n <Cr>
200
≤
n
≤
4000
Setting the Scan angle increment
between two consecutive laser shots in
units of 0.0001 degree.
Note: Values are truncated
according to the resolution of the
internal angle encoders; e.g. for a
resolution of 2.5 mdeg the value is
truncated to a multiple of 2.5 mdeg
(e.g. a setting of 187 results in an
effective angle increment of 175
according to 7x2.5 mdeg)
SC_WRITE <Cr>
Activate the scanner settings by
internally writing the scanner relevant
parameters to the scanner module (e.g.
scanner speed depending on setting of
RF_DELTA_L).
This command is executed
automatically at startup sequence and
must be sent after changing scanner
parameter RF_DELTA_L.
SC_SCAN <Cr>
SC_SCANCONT <Cr>
Start the scanner motion (movement).
Note: With parameter AUTOSCAN = 1
this is done automatically at startup.
SC_NOSCAN <Cr>
Stop the scanning movement
