Product description
34 © SICK AG · Division Auto Ident · Germany · Subject to change without notice 8013796/UL20/2010-09-27
Operating Instructions
Laser Measurement Systems of the LMS500 Product Family
Chapter 3
Resetting an output
By default the outputs are reset immediately. You can configure a delay of up to 10 s (e.g.
to activate a horn or to send the output signal to a PLC).
An an alternative you can also reset the output using an input. The output is then only reset
when the allocated input has the configured status.
3.9 Inputs and outputs
3.9.1 Encoder inputs
The LMS500/511 has 2 encoder inputs (IN3 and IN4).
With the aid of the encoder pulses, the size of so-called dynamic fields can be changed, e.g.,
for speed-dependent vehicle monitoring. The length of a dynamic field changes with the
speed measured, e.g. using an encoder.
PROJECT TREE, LMS…, PARAMETER, INCREMENT CONFIGURATION.
When stationary (V = 0 m/s) the evaluation field is the same size as the basic field
configured. The size increases continuously with increasing speed up to the largest physical
size for the field at the maximum speed.
3.9.2 Digital switching outputs
The LMS500/511 has three digital switching outputs.
The outputs can be used as digital switching outputs to ground, as floating outputs or as
resistance monitored outputs (see section 5.4.5 “Wiring of inputs and outputs on the LMS”
on page 55).
For each output you configure whether it is switched by the field evaluation application or
via SOPAS ET messages, or whether it is used to signal the device is ready.
PROJECT TREE, LMS…, PARAMETER, NETWORK/INTERFACES/IOS, DIGITAL OUTPUTS.
If an output is switched by the field evaluation application, the LMS can signal evaluation
field infringements or contour infringements. For this purpose, configure in SOPAS ET which
evaluation case is to act on which output.
3.9.3 Synchronisation of several LMS500/511
Optical interference between two or more LMS can occur if they have to be installed within
the same scanning plane (see section 4.3.6 “Using multiple LMS laser measurement
systems” on page 45).
Several LMS can be synchronised to avoid this type of interference. Through the SOPAS
software an LMS can be set to be Master only via Output 6 (master synchronisation) and
connected to a second LMS through Input 4 (slave synchronisation).
Using the Synchronisation Phase value in the SOPAS software each Master-Slave link can
be differentiated.
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