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LMS400
Glossary
8011984/YSZ3/2016-02-04
© SICK AG · Germany · All rights reserved · Subject to change without notice
37
Chapter
7
7
Glossary
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Transmission of the parameter set that has been modified offline in the SOPAS ET
configuration software from the PC to the LMS400. SOPAS ET transmits either always a
complete copy to the memory (RAM) of the LMS400 (menu C
OMMUNICATION
, D
OWNLOAD
ALL
P
ARAMETERS
TO
D
EVICE
) or only the parameter that has just been edited with the aid of the
context menu of the right mouse button (menu C
OMMUNICATION
, D
OWNLOAD
M
ODIFIED
P
ARAMETERS
TO
D
EVICE
). With menu LMS400, P
ARAMETER
, S
AVE
PERMANENT
, the parameter set
is saved permanently in the EEPROM of the LMS400.
Field of view
Angle that defines the limits to which the read beam is deflected by the polygon mirror
wheel. A v-shaped area is formed radially in the scan direction in front of the laser output
opening; this area must contain the objects to be measured.
Host interface
Primary data interface for the LMS400 with configurable measured data output format. Is
used, among other tasks, for the output of the measuring result in message format to the
host/the PLC. Used to integrate the LMS400 in the SICK network. Can be connected
electrically as RS
232 or RS
422. Provides various transmission protocols.
Line scanner
Scanner that very rapidly deflects its focused laser beam with the aid of a polygon mirror
wheel with mirrors parallel to the axis. In this way the scanner generates a dot of light in the
measuring plane that repeatedly runs along a straight line and appears to be a “stationary”
scan line due to the relative slow response of the human eye.
Parameter set
Data set using which the functions implemented in the LMS400 are initialised and
activated. Is transmitted from the LMS400 to SOPAS ET and in the reverse direction using
U
PLOAD
or D
OWNLOAD
respectively.
Remission
Remission is the quality of reflection at a surface. The basis is the Kodak standard, known
worldwide in, among other areas, photography.
RIS
Remission Information System: The RIS value corresponds to the remission value without
application of the scaling factor. It states the reflectivity of the object in percent determined
by the system. A small RIS value signifies a low reflectivity (as a rule a dark object). Only
distance values with RIS values
5 (= 10%) are inside the specified range of the LMS400.
With RIS values < 5 the reliability of the measured result is low.
Scan
A scan encompasses all measured values determined referred to the scanning angle and
the speed of rotation of the mirror.