Special features, Customer configurations, Applications – Rockwell Automation 440R MSR42 Control Module User Manual User Manual
Page 4: Typical applications, Application restrictions, Dimensions, Wiring diagrams, Basic configuration, Original instructions
 
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Light Curtain Multi-Function Control Module User Manual
Original instructions
Up to three expander modules can be easy attached & controlled by the 
base module.
In addition to the multifunction controllers, models are offered in special 
configurations which are described in the appendix at the end of this 
manual.
Special features
The characteristics of the MSR42 base module:
• Category 4, PLe according to EN ISO 13849-1
• Type 4 according to EN61496-1 / -2
• SIL CL3 according to EN62061
• SIL3 based on IEC 61508
• Short response times 
• Expandable
• Up to 3 safety relay expander modules per base module
• Adjustable stop delay time 
• Different safety components suitable for connection
• Blanking
• Muting
• Single scan selectable
Customer Configurations
The configuration of a MSR42 base module may very easily be adapted 
to the customer requirements of an individual application with the help 
of the USB/optical interface and the Allen-Bradley Guardmaster 
Software “Configuration & Diagnostic Tool”. More information can be 
found in the Software Technical Manual. The software is capable of 
generating a configuration control document which lists configurations 
and specifications of the controller and light curtain (Figure 16).
Applications
Typical applications
Typical MSR42 base module applications are:
• Presses
• Robotic cells with automatic insertion
• Assembly lines
• Indexing tables
• Conveyor systems
• Automatic storage facilities
Application restrictions
MSR42 base modules are not intended for application in explosive (EX) 
or in radioactive environments.
Dimensions
The dimensions of the MSR42 housing are illustrated in Figure 2.
Figure 2: Base module dimensions are the same for expansion modules
Wiring diagrams
Basic configuration
The following figures show the connection possibilities for the MSR42 
base module with the basic configuration. The logic of this basic version 
is exemplified in the accompanying configuration control document:
The resolution and the response time may 
increase due downloading other 
configuration settings for the Micro 400 
and other safety sensors connected to 
MSR42. Consider the relevant resolution 
and the maximum response time when 
evaluating the safety distance. See 
Chapter 7. All relevant data of the actual 
configuration are always described in the 
actual configuration control document 
for that controller. Make sure that the 
actual document is always stored near to 
the control unit.
Figure
Safety component
Start mode
Start release
Figure 3
Micro400
manual
no
Figure 4
Micro400
manual
yes
Figure 5
Micro400
automatic
no
Figure 6
Micro400
automatic
yes