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© SICK AG · Germany · All rights reserved · Subject to change without notice
8011984/YSZ3/2016-02-04
Chapter
4
Level Control
Online help
LMS400 laser measurement sensor
Logic and retention time
Using the I
NVERSE
check box you can define whether the output switches electrically
inverted.
For each digital output you configure in the R
ETENTION
T
IME
field a time in ms for which the
output remains in this active output state. Adjust the retention time to the input electronics
on the downstream system.
How to define the behaviour of the digital outputs:
4.3.2
Analog output
You can allocate the analog output of the LMS400 to a single column or to all columns. You
have three options for linking the output with the column results:
Inactive
The output state remains unchanged.
Linear
A single column defines the output current.
The measurement area between the top and bottom border is represented linearly on
the current range of the analog output from 4 to 20 mA.
Sum function
All columns define the output current.
– Output current = 4 mA, if the switching point is not reached in all columns
– Output current = 20 mA, if the switching point is exceeded in all columns
– Output current = 12 mA, if the switching point is exceeded in some columns, and not
reached in others
How to define the behaviour of the analog output:
Open in the P
ROJECT
TREE
, LMS400-XX00, P
ARAMETER
, L
EVEL
C
ONTROL
the device page
R
ESULT
.
Select in D
IGITAL
O
UTPUTS
in the R
ESULT
1 to R
ESULT
4 fields how the outputs are allocated
to the columns.
If you have selected A
BOVE
L
EVEL
or B
ELOW
L
EVEL
, enter in the C
OLUMN
field the related
column.
Select, if necessary the I
NVERSE
option.
Enter in the D
ELAY
field the time in ms that the state is retained on the output.
Open in the P
ROJECT
TREE
, LMS400-XX00, P
ARAMETER
, L
EVEL
C
ONTROL
the device page
R
ESULT
.
Select in A
NALOG
O
UTPUTS
in the A O
UT
field how the output is allocated to the columns.
If you have selected L
INEAR
, enter in the N
UMBER
field the related column.
Enter in the D
ELAY
field the time in ms that the state is retained on the output.