O P E R AT I N G I N S T R U C T I O N S | Bulkscan®
8014829/ZV98/2018-05-07 | S I C K
Subject to change without notice
2 6
CONFIGURABLE FUNCTIONS
4.13
Digital outputs
The Bulkscan® LMS511 has six digital outputs and the Bulkscan® LMS111 has three
digital outputs. On the digital outputs the sensors can signal that certain totals have
been reached, limits have been exceeded or dropped below, or the occurrence of infor-
mation/warnings.
The outputs can be used as digital outputs to ground or as floating outputs (see "6.3
Wiring the inputs and outputs to the external components“ on page 51).
Assignment
Switching condition
Behavior
Information/
Warnings
Information (
Yellow): The
sensor continues to measure.
The output remains active until the
problem is rectified.
Warnings (
Orange): The sen-
sor no longer measures
Volume quota
Mass quota
Reaching the volume quota or
mass quota
The output behaves like a pulse
output.
Volume flow rate
Mass flow rate
Center of gravity
Bulk density
Bulk height
Belt speed
• Dropping below the lower
limit
• Exceeding the upper limit
The output behaves like a switch-
ing output.
Tab. 3: Assignment and switching conditions for the digital outputs
When turning the sensor on, digital outputs are available after the power-up delay.
When the sensor is in
Maintenance
mode, only the output selected as
Contamination
output is available.
Digital outputs
tab
Logic
You can configure the switching behavior on the occurrence of the switching condition:
• Active low: The digital output changes from HIGH to LOW (= active).
• Active high: The digital output changes from LOW to HIGH (= active).
Behavior as output Information/Warnings
Assignment
Description
All
All information/warnings are displayed
Invalid measuring points
Too many invalid measuring points within one scan
Bulk edge left
(only for Bulkscan® LMS511)
Bulk materials too close to the left end of the measurement
field
Bulk edge right
(only for Bulkscan® LMS511)
Bulk materials too close to the right end of the measurement
field
Conveyor edge left
(only for Bulkscan® LMS511)
Belt too far from the left end of the measurement field
Conveyor edge right
(only for Bulkscan® LMS511)
Belt too far from the right end of the measurement field
Contamination
Front screen contaminated
Tab. 4: Behavior as output Information/Warnings
It is possible to set a switching delay time. for the digital output.
Warnings that are present for a short time only are not issued via the digital output if
the switching delay times are long.
Note
