SICK safeRS3 User manual

O P E R A T I N G I N S T R U C T I O N S
safeRS3
Safe Radar System

2O P E R A T I N G I N S T R U C T I O N S | safeRS3 8027489/2022-03-01 | SICK
Subject to change without notice
Described product
safeRS3
Distributor
SICKAG
Erwin-Sick-Str. 1
79183 Waldkirch
Germany
Manufacturer
Inxpect SpA
Via Serpente, 91
25131 Brescia (BS)
Italy
www.inxpect.com
Legal information
This work is protected by copyright. Any rights derived from the copyright shall be
reserved for SICKAG. Reproduction of this document or parts of this document is only
permissible within the limits of the legal determination of Copyright Law. Any
modification, abridgment or translation of this document is prohibited without the
express written permission of SICKAG.
The trademarks stated in this document are the property of their respective owner.
© SICKAG. All rights reserved.
Original document
This document is an original document of SICKAG.

Contents
1 Glossary of terms 10
2 This manual 11
2.1 Information on this manual 11
2.1.1 Objectives of this instruction manual 11
2.1.2 Obligations with regard to this manual 11
2.1.3 Provided documentation 11
2.1.4 Intended users of this instruction manual 12
3 Safety 13
3.1 Safety information 13
3.1.1 Safety messages 13
3.1.2 Safety symbols on the product 13
3.1.3 Personnel skills 13
3.1.4 Safety assessment 14
3.1.5 Intended use 14
3.1.6 EMC-compliant electrical installation 15
3.1.7 General warnings 15
3.1.8 Warnings for the restart prevention function 15
3.1.9 Responsibility 15
3.1.10 Limits 15
3.1.11 Disposal 16
3.2 Conformity 16
3.2.1 Standards and Directives 16
3.2.2 CE 16
3.2.3 Other conformities and national configurations 17
4 Get to know safeRS3 18
4.1 safeRS3 18
4.1.1 Definition 18
4.1.2 Special features 18
4.1.3 Main components 19
4.1.4 Control - sensor communication 19
4.1.5 Control - machinery communication 19
4.1.6 Applications 19
4.2 safeRS3 controls 20
4.2.1 Control supported 20
4.2.2 Functions 20
4.2.3 Structures 21
4.2.4 System status LEDs 22
4.2.5 Fieldbus status LEDs 22
4.2.6 Inputs 23
4.2.7 Input variable behavior 23
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4.2.8 SNS input 24
4.2.9 Outputs 24
4.2.10 External resistor for OSSD outputs 26
4.3 safeRS3 Sensor 27
4.3.1 Functions 27
4.3.2 2-axes structure 27
4.3.3 3-axes structure 28
4.3.4 Status LED 28
4.4 safeRS3 Designer application 29
4.4.1 Functions 29
4.4.2 safeRS3 Designer application usage 29
4.4.3 Access 29
4.4.4 Main menu 30
4.5 Fieldbus communication 30
4.5.1 Fieldbus support 30
4.5.2 Communication with the machinery 30
4.5.3 Data exchanged through Fieldbus 31
4.6 Modbus communication 32
4.6.1 Modbus support 32
4.6.2 Modbus communication enabling 32
4.6.3 Data exchanged through Modbus 32
4.7 System configuration 33
4.7.1 System configuration 33
4.7.2 Dynamic system configuration 33
4.7.3 Dynamic system configuration activation 34
4.7.4 Dynamic configuration through the digital inputs 34
4.7.5 Dynamic configuration through the safety Fieldbus 35
4.7.6 Safe configuration change 35
5 Functioning principles 36
5.1 Sensor functioning principles 36
5.1.1 Introduction 36
5.1.2 Factors that influence the reflected signal 36
5.1.3 Detected and missed objects 36
5.2 Protective fields 36
5.2.1 Introduction 36
5.2.2 Protective field parameters 37
5.2.3 Angular coverage 37
5.2.4 Detection distance 37
5.2.5 Protective fields dependency and detection signal generation 38
5.2.6 Independent protective fields:a use case 40
5.3 Safety working modes and safety functions 40
5.3.1 Introduction 40
5.3.2 Safety working modes 41
5.4 Safety working mode: Both (default) 41
5.4.1 Introduction 41
5.4.2 Safety function:access detection 41

5.4.3 Safety function:restart prevention 41
5.4.4 Restart timeout parameter 42
5.5 Safety working mode: Always access detection 42
5.5.1 Safety function:access detection 42
5.5.2 TOFFparameter 42
5.6 Safety working mode: Always restart prevention 42
5.6.1 Safety function:restart prevention 42
5.6.2 Restart timeout parameter 43
5.7 Restart prevention function: static object detection option 43
5.7.1 Introduction 43
5.7.2 Availability 44
5.7.3 Possible applications 44
5.7.4 Operation 44
5.7.5 Restart timeout parameter 44
5.8 Features of the restart prevention function 44
5.8.1 Cases of non-guaranteed function 44
5.8.2 Types of managed restart 45
5.8.3 Precautions for preventing unexpected restarting 46
5.8.4 Configure the restart prevention function 47
5.9 Muting 47
5.9.1 Description 47
5.9.2 Muting enabling 47
5.9.3 Muting activation conditions 48
5.9.4 Enable muting signal characteristics 49
5.9.5 Muting status 49
5.10 Anti-tampering functions:anti-rotation around axes 49
5.10.1 Anti-rotation around axes 49
5.10.2 Disable the anti-rotation around axes function 50
5.10.3 Checks when the anti-rotation around axes function is
disabled 50
5.10.4 When to disable 50
5.11 Anti-tampering functions:anti-masking 51
5.11.1 Masking signal 51
5.11.2 Environment memorization process 51
5.11.3 Causes of masking 51
5.11.4 Masking signal when the system is turned on 51
5.11.5 Settings 52
5.11.6 Checks when the anti-masking function is disabled 52
5.11.7 When to disable 53
6 Sensor position 54
6.1 Basic concepts 54
6.1.1 Determining factors 54
6.1.2 Sensor installation height 54
6.1.3 Sensor inclination 54
6.2 Sensor field of view 54
6.2.1 Types of field of view 54
6.2.2 Areas and dimensions of the field of view 55
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6.2.3 Dimensions for the access detection function 55
6.2.4 Dimensions for the restart prevention function 55
6.2.5 Position of the field of view 56
6.3 Dangerous area calculation 57
6.3.1 Introduction 57
6.3.2 Formula 57
6.4 Calculation of range of distances 58
6.4.1 Introduction 58
6.4.2 Legend 58
6.4.3 Installation configurations 58
6.4.4 Calculate the range of distances 58
6.4.5 Calculate the real detection distance 59
6.5 Sensor position recommendations 59
6.5.1 For access detection function 59
6.5.2 For access control of an entrance 60
6.6 Installations on moving elements 60
6.6.1 Introduction 60
6.6.2 Speed limits 60
6.6.3 Detection signal generation conditions 61
6.6.4 Prevention of unexpected restart 61
6.6.5 Recommendations for positioning the sensor 61
6.7 Outdoor installations 62
6.7.1 Position exposed to precipitation 62
6.7.2 Recommendations for covering the sensor 62
6.7.3 Recommendations for positioning the sensor 62
6.7.4 Position not exposed to precipitation 63
7 Installation and use procedures 64
7.1 Before installation 64
7.1.1 Materials required 64
7.1.2 Operating system required 64
7.1.3 Install the safeRS3 Designer application 64
7.1.4 Initiate safeRS3 64
7.2 Install and configure safeRS3 65
7.2.1 Install the control 65
7.2.2 Synchronize the controls 65
7.2.3 Define the area to be monitored 66
7.2.4 Configure the inputs and outputs 66
7.2.5 Install the sensors 67
7.2.6 Mount bracket for z-axis rotation (roll) 69
7.2.7 Examples of sensor installation 70
7.2.8 Connect the control to the sensors 71
7.2.9 Assign the Node IDs 71
7.2.10 Chain examples 72
7.2.11 Save and print the configuration 73
7.2.12 Set the control Ethernet parameters 73

7.3 Validate the safety functions 73
7.3.1 Validation 73
7.3.2 Validate the access detection function 73
7.3.3 Example of access points 74
7.3.4 Validate the restart prevention function 74
7.3.5 Example of stopping points 75
7.3.6 Validate the system with safeRS3 Designer 75
7.3.7 Troubleshooting validation 76
7.4 Manage the configuration 76
7.4.1 Configuration reports 76
7.4.2 Change the configuration 76
7.4.3 Back up the configuration 77
7.4.4 Load a configuration 77
7.4.5 Display previous configurations 77
7.5 Other functions 77
7.5.1 Change language 77
7.5.2 Application type selection 77
7.5.3 Locate the area with detected motion 78
7.5.4 Restore factory default settings 78
7.5.5 Identify a sensor 78
7.5.6 Change network parameters 78
7.5.7 Change Modbus parameters 78
7.5.8 Change Fieldbus parameters 78
8 Maintenance and troubleshooting 79
8.1 Troubleshooting 79
8.1.1 Control LED 79
8.1.2 Sensor LED 81
8.1.3 Other problems 82
8.2 Event log management 83
8.2.1 Introduction 83
8.2.2 Download the system log 83
8.2.3 Log file sections 83
8.2.4 Log line structure 83
8.2.5 Timestamp (seconds counter from the latest boot) 84
8.2.6 Timestamp (absolute/relative value) 84
8.2.7 Event description 84
8.2.8 Log file example 85
8.2.9 Event list 85
8.2.10 Verbosity level 86
8.2.11 Verbosity level for detection access and exit events 86
8.3 INFOevents 87
8.3.1 System Boot 87
8.3.2 System configuration 87
8.3.3 Factory reset 88
8.3.4 Stop signal 88
8.3.5 Restart signal 88
8.3.6 Detection access 88
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8.3.7 Detection exit 88
8.3.8 Dynamic configuration in use 89
8.3.9 Muting status 89
8.3.10 Fieldbus connection 89
8.3.11 Modbus connection 89
8.3.12 Session authentication 90
8.3.13 Validation 90
8.3.14 Log download 90
8.4 ERRORevents (control) 90
8.4.1 Introduction 90
8.4.2 Temperature errors (TEMPERATUREERROR) 91
8.4.3 Control voltage errors (POWERERROR) 91
8.4.4 Peripheral error (PERIPHERAL ERROR) 91
8.4.5 Configuration errors (FEE ERROR) 91
8.4.6 Output errors (OSSD ERROR) 91
8.4.7 Flash errors (FLASH ERROR) 92
8.4.8 Dynamic configuration error (DYNAMIC CONFIGURATION
ERROR) 92
8.4.9 Internal communication error (INTERNAL COMMUNICATION
ERROR) 92
8.4.10 Input redundancy error (INPUT REDUNDANCY ERROR) 92
8.4.11 Fieldbus error (FIELDBUS ERROR) 92
8.4.12 RAM error (RAM ERROR) 93
8.4.13 Sensor configuration errors (SENSOR
CONFIGURATIONERROR) 93
8.5 ERRORevents (sensor) 93
8.5.1 Introduction 93
8.5.2 Misconfiguration error (MISCONFIGURATION ERROR) 93
8.5.3 Status error and fault (STATUS ERROR/FAULT ERROR) 93
8.5.4 Protocol error (PROTOCOL ERROR) 93
8.5.5 Sensor voltage errors (POWERERROR) 93
8.5.6 Anti-tampering sensor (TAMPERERROR) 94
8.5.7 Signal error (Signal error) 94
8.5.8 Temperature errors (TEMPERATUREERROR) 94
8.5.9 MSS error and DSS error (MSS ERROR/DSS ERROR) 94
8.6 ERRORevents (CANbus) 94
8.6.1 Introduction 94
8.6.2 CAN errors (CANERROR) 95
8.7 Cleaning and spare parts 95
8.7.1 Cleaning 95
8.7.2 Spare parts 95
9 Technical references 96
9.1 Technical data 96
9.1.1 General specifications 96
9.1.2 Safety parameters 96
9.1.3 Ethernet connection (if available) 97

9.1.4 Control features 97
9.1.5 Sensor features 98
9.1.6 CAN bus cables recommended specifications 100
9.1.7 Tamper-proof screws specifications 100
9.1.8 Non tamper-proof screws specifications 101
9.1.9 Bottom screws specifications 101
9.2 Terminal blocks and connector pin-outs 102
9.2.1 Digital inputs and outputs terminal block 102
9.2.2 Voltage and current limits for digital inputs 102
9.2.3 Power supply terminal block 103
9.2.4 CAN bus terminal block 103
9.2.5 Connectors M12 CAN bus 103
9.3 Electrical connections 104
9.3.1 Connection of safety outputs to the machinery control
system 104
9.3.2 Connection of safety outputs to an external safety relay 105
9.3.3 Connection of stop signal (emergency button) 106
9.3.4 Connection of restart signal 107
9.3.5 Connection of the muting input and output (one group of
sensors) 108
9.3.6 Connection of the muting input and output (two groups of
sensors) 109
9.3.7 Detection signal 2 connection 110
9.3.8 Diagnostic output connection 111
9.4 Parameters 111
9.4.1 Parameter list 111
9.5 Digital input signals 114
9.5.1 Stop signal 114
9.5.2 Muting (with/without pulse) 115
9.5.3 Restart signal 116
9.5.4 Active dynamic configuration 116
10 Appendix 118
10.1 System software 118
10.1.1 Introduction 118
10.1.2 Configuration 118
10.1.3 Competence 118
10.1.4 Installation instructions 118
10.1.5 Outstanding anomalies 118
10.1.6 Backward compatibility 118
10.1.7 Change control 118
10.1.8 Implemented security measures 119
10.2 Disposal 119
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1 Glossary of terms
1oo2 (one out of two) Type of multi-channel architecture where
one area is monitored by two sensors at the same time.
Activated output (ON-state) Output that switches from OFF to ON-state.
Angular coverage Property of the field of view that corresponds to the
coverage on the horizontal plane.
Dangerous area Area to be monitored because it is dangerous for people.
Deactivated output (OFF-state) Output that switches from ON to OFF-state.
Detection distance x Depth of the field of view configured for field x.
Detection signal x Output signal that describes the monitoring status of the
field x.
ESPE (Electro-Sensitive Protective
Equipment)
Device or system of devices used for the safety-related
detection of people or parts of the body. ESPEs provide
personal protection at machines and plants/systems
where there is a risk of physical injury. These
devices/systems cause the machine or plant/system to
switch over to a safe status before a person is exposed to
a dangerous situation.
Field of view Sensor area of vision characterized by a specific angular
coverage.
Fieldset Structure of the field of view which can be composed of up
to four fields.
FMCW Frequency Modulated Continuous Wave
Inclination Sensor rotation around the x-axis. The sensor inclination is
the angle between the center of the field of view of the
sensor and a line parallel to the ground.
Machinery The system for which the dangerous area is monitored.
Monitored area Area that is monitored by the system. It is composed of all
the fields of all the sensors.
Protective field x Portion of the field of view of the sensor. Protective field 1
is the field closer to the sensor.
OSSD Output Signal Switching Device
RCS Radar Cross-Section. Measure of how detectable an object
is by radar. It depends, among other factors, on the
material, dimension and position of the object.
Tolerance area Area of the field of view where detection or not of a moving
object/person depends on the characteristics of the same
object itself.
1 GLOSSARY OF TERMS

2 This manual
2.1 Information on this manual
2.1.1 Objectives of this instruction manual
This manual explains how to integrate safeRS3 for safeguarding machinery operators
and how to install it, use it and maintain it safely.
This document includes all the information as Safety Manual according to IEC 61508-
2/3 Annex D. Please refer in particular to Safety parameters on page96 and to System
software on page118.
The functioning and safety of the machinery to which safeRS3 is connected is out of the
scope of this document.
2.1.2 Obligations with regard to this manual
NOTICE
This manual is an integral part of the product and must be kept for its entire working
life.
It must be consulted for all situations related to the life cycle of the product, from its
delivery to decommissioning.
It must be stored so that it is accessible to operators, in a clean location and in good
condition.
In the event of manual loss or damage, contact Technical Support. Always enclose the
manual when the equipment is sold.
2.1.3 Provided documentation
Document Code Date Distribution format
Operating instructions (this
manual)
8027489_operating_instructions_
safeRS3_en
2022-
03-01
online PDF
PDF downloadable
from the site
www.sick.com
safeRS3 PROFIsafe
communication Technical
Information
8027489_technical_information_
safeRS3 PROFIsafe
communication_en
2022-
03-01
online PDF
PDF downloadable
from the site
www.sick.com
safeRS3 Modbus
communication Technical
Information
8027489_technical_information_
safeRS3 PROFIsafe
communication_en
2022-
03-01
online PDF
PDF downloadable
from the site
www.sick.com
2 THIS MANUAL
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2 THIS MANUAL
2.1.4 Intended users of this instruction manual
The recipients of the instruction manual are:
lThe machinery manufacturer onto which the system will be installed
lSystem installer
lMachinery maintenance technician

3 Safety
3.1 Safety information
3.1.1 Safety messages
Warnings related to the safety of the user and of the equipment as envisaged in this
document are as follows:
WARNING
Indicates a hazardous situation which, if not avoided, may cause death or serious injury.
NOTICE
Indicates obligations that if not observed may cause harm to the equipment.
3.1.2 Safety symbols on the product
This symbol marked on the product indicates that the manual must be consulted. In
particular, pay attention to the following activities:
lwiring of the connections (see Terminal blocks and connector pin-outs on page102
and Electrical connections on page104)
lcable operating temperature (see Terminal blocks and connector pin-outs on
page102)
lcontrol cover, which was subjected to a low energy impact test (see Technical data
on page96)
3.1.3 Personnel skills
The recipients of this manual and the skills required for each activity presented herein
are as follows:
Recipient Assignments Skills
Machinery
manufacturer
lDefines which protective devices
should be installed and sets the
installation specifications
lKnowledge of significant hazards of
the machinery that must be reduced
based on risk assessment.
lKnowledge of the entire machinery
safety system and the system on
which it is installed.
Protection
system
installer
lInstalls the system
lConfigures the system
lPrints configuration reports
lAdvanced technical knowledge in the
electrical and industrial safety fields
lKnowledge of the dimensions of the
dangerous area of the machinery to
be monitored
lReceives instructions from the
machinery manufacturer
Machinery
maintenance
technician
lPerforms maintenance on the
system
lAdvanced technical knowledge in the
electrical and industrial safety fields
3 SAFETY
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3 SAFETY
3.1.4 Safety assessment
Before using a device, a safety assessment in accordance with the Machinery Directive
is required.
The product as an individual component fulfills the functional safety requirements in
accordance with the standards stated in Standards and Directives on page16.
However, this does not guarantee the functional safety of the overall plant/machine. To
achieve the relevant safety level of the overall plant/machine’s required safety
functions, each safety function needs to be considered separately.
3.1.5 Intended use
safeRS3 is certified SIL 2 according to IEC/EN 62061, PL d according to EN ISO 13849-
1 and Performance Class D according to IEC/TS 62998-1.
It performs the following safety functions:
lAccess detection function: access to a hazardous area deactivates the safety
outputs to stop the moving parts of the machinery.
lRestart prevention function: prevents unexpected starting or restarting of the
machinery. Detection of motion within the dangerous area maintains the safety
outputs deactivated to prevent machinery starting.
It performs the following optional safety functions:
lStop signal: force all the safety outputs to OFF-state.
lRestart signal: enables the control to switch to ON-state the safety outputs related to
all the protective fields with no motion detected.
lMuting (see Muting on page47).
safeRS3 is suitable for protecting the entire body for the following applications:
ldangerous area protection
lmobile dangerous area protection
lindoor and outdoor applications
safeRS3 meets requirements of applications safety functions that require a risk
reduction level of:
lUp to SIL 2, HFT = 0 according to IEC/EN 62061
lUp to PL d, Category 3 according to EN ISO 13849-1
lUp to Performance Class D according to IEC/TS 62998-1
safeRS3, in combination with additional risk reduction means, can be used for
applications safety functions that require higher risk reduction levels.
The following is deemed improper use in particular:
lAny component, technical or electrical modification to the product,
lUse of the product outside the areas described in this document,
lUse of the product outside the technical details (see Technical data on page96).

3.1.6 EMC-compliant electrical installation
NOTICE
The product is designed for use in an industrial environment. The product may cause
interference if installed in other environments. If installed in other environments,
measures should be taken to comply with the applicable standards and directives for
the respective installation site with regard to interference.
3.1.7 General warnings
lIncorrect installation and configuration of the system decreases or inhibits the
protective function of the system. Follow the instructions provided in this manual for
correct installation, configuration and validation of the system.
lChanges to the system configuration may compromise the protective function of the
system. After any changes made to the configuration, validate correct functioning of
the system by following the instructions provided in this manual.
lIf the system configuration allows access to the dangerous area without detection,
implement additional safety measures (e.g. guards).
lThe presence of static objects, in particular metallic objects, within the field of view
may limit the efficiency of sensor detection. Keep the sensor field of view
unobstructed.
lThe system protection level (SIL 2, PL d) must be compatible with the requirements
set forth in the risk assessment.
lCheck that the temperature of the areas where the system is stored and installed is
compatible with the storage and operating temperatures indicated in the technical
data of this manual.
lRadiation from this device does not interfere with pacemakers or other medical
devices.
3.1.8 Warnings for the restart prevention function
lThe restart prevention function is not guaranteed in blind spots. If required by the
risk assessment, implement adequate safety measures in those areas.
lMachinery restarting must be enabled only in safe conditions. The button for the
restart signal must be installed:
ooutside of the dangerous area
onot accessible from the dangerous area
oin a point where the dangerous area is fully visible
3.1.9 Responsibility
The machinery manufacturer and system installer are responsible for the operations
listed below:
lProviding adequate integration of the safety output signals of the system.
lChecking the monitored area of the system and validating it based on the needs of
the application and risk assessment. Following the instructions provided in this
manual.
3.1.10 Limits
lThe system cannot detect the presence of people who are immobile and not
breathing or objects within the dangerous area.
3 SAFETY
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3 SAFETY
lThe system does not offer protection from pieces ejected from the machinery, from
radiation, and objects falling from above.
lThe machinery command must be electronically controlled.
3.1.11 Disposal
In safety-related applications, comply with the mission time reported in General
specifications on page96.
For decommissioning follow the instructions reported in Disposal on page119.
3.2 Conformity
3.2.1 Standards and Directives
Directives 2006/42/EC (MD - Machinery)
2014/53/EU (RED - Radio equipment)
Standards IEC/EN 62061: 2005, A1:2013, A2:2015, AC:2010 SIL 2
EN ISO 13849-1: 2015 PL d
EN ISO 13849-2: 2012
IEC/EN 61496-1: 2013
IEC/EN 61508: 2010 Part 1-7 SIL 2
IEC/EN 61000-6-2:2019
ETSI EN 305 550-1 V1.2.1
ETSI EN 305 550-2 V1.2.1
ETSI EN 301 489-1 v2.2.3 (only emissions)
ETSI EN 301 489-3 v2.1.1 (only emissions)
IEC/EN 61326-3-1:2017
IEC/EN 61010-1: 2010
IEC/TS 62998-1:2019
UL/CSA 61010-1
IEC/EN 61784-3-3 for the PROFIsafe Fieldbus
Note: no type of failure has been excluded during the system analysis and design
phase.
The EUDeclaration of Conformity can be downloaded from www.sick.com.
3.2.2 CE
The manufacturer, Inxpect SpA, states that safeRS3 Safe Radar System complies with
the 2014/53/EU and 2006/42/EC directives. The full EU declaration of conformity text
is available on the company's website at the address: www.sick.com.
At the same address all updated certifications are available for download.

3.2.3 Other conformities and national configurations
For a complete, up-to-date list of product conformities and any national configurations,
please refer to the National configuration addendum document. The PDFcan be
downloaded from the site www.sick.com.
3 SAFETY
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4 Get to know safeRS3
Product label description
The following table describes the information contained in the product label:
Part Description
SID Sensor ID
DC "yy/ww" : year and week of the product manufacture
SRE Safety Radar Equipment
Model Product model
Type Product variant, used for commercial purposes only
S/N Serial number
4.1 safeRS3
4.1.1 Definition
safeRS3 is an active protection radar system that monitors the dangerous areas of
machinery.
4.1.2 Special features
Some of the special features of this protection system are the following:
ldetection of current distance and angle of the targets detected by each sensor
lup to four safe protective fields to define different behaviors of the machines
lprogrammable coverage angle for each protective field
lrotation on three axes during installation to allow better coverage of detection areas
lEthernet safety Fieldbus to safely communicate with the PLC of the machinery (if
available)
lpossibility to switch dynamically between different preset configurations (max 32
through Fieldbus, if available, and max 4 with digital inputs) to adapt to the
surrounding environment
lmuting on the entire system or only on some sensors
limmunity to dust and smoke
lreduction of undesired alarms caused by the presence of water or processing waste
lcommunication and data exchange through Modbus (if available)
4 GET TO KNOW SAFERS3

4.1.3 Main components
safeRS3 is composed of a control and up to six sensors. The safeRS3 Designer
application allows system operation configuration and checks.
4.1.4 Control - sensor communication
The sensors communicate with the control via CAN bus using diagnostic mechanisms in
compliance with standard EN 50325-5 to guarantee SIL 2 and PL d.
For correct functioning, each sensor must be assigned an identification number (Node
ID).
Sensors on the same bus must have different Node IDs. By default, the sensor does not
have a pre-assigned Node ID.
4.1.5 Control - machinery communication
The controls communicate with the machinery via I/O (see Inputs on page23 and
Outputs on page24).
safeRS3 Control PROFINET is provided with a safety communication on a Fieldbus
interface. The Fieldbus interface allows safeRS3 Control PROFINET to communicate in
real-time with the PLC of the machinery in order to do the following:
lsend information about the system to the PLC (e.g. the position of the detected
target)
lreceive information from the PLC (e.g. to change the configuration dynamically)
For details, see Fieldbus communication on page30.
safeRS3 Control PROFINET is provided with an Ethernet port that allows an unsafe
communication on a Modbus interface (see Modbus communication on page32).
4.1.6 Applications
safeRS3 integrates with the machinery control system: when performing safety
functions or detecting failures, safeRS3 deactivates the safety outputs and keeps them
4 GET TO KNOW SAFERS3
8027489/2022-03-01 | SICK
Subject to change without notice
O P E R A T I N G I N S T R U C T I O N S | safeRS3 19

20 O P E R A T I N G I N S T R U C T I O N S | safeRS3 8027489/2022-03-01 | SICK
Subject to change without notice
4 GET TO KNOW SAFERS3
deactivated, so the control system can put the area into a safe condition and/or prevent
restarting of the machinery.
In the absence of other control systems, safeRS3 can be connected to the devices that
control the power supply or machinery start-up.
safeRS3 does not perform normal machinery control functions.
For connection examples, see Electrical connections on page104.
4.2 safeRS3 controls
4.2.1 Control supported
The safeRS3 supportstwo different controls. The main difference between them are the
connection ports and therefore the communication interfaces available:
lsafeRS3 Control PROFINET: two Ethernet ports for Fieldbus, an Ethernet port for
system configuration and Modbus communication and a micro-USB port
lsafeRS3 Control I/O: a micro-USB port
Safe
Unsafe
safeRS3 Control PROFINET communication
architecture.
safeRS3 Control I/O communication
architecture.
4.2.2 Functions
The control performs the following functions:
lCollects information from all the sensors via CAN bus.
lCompares the position of detected motion with the set values.
lDeactivates the selected safety output when at least one sensor detects motion in
the protective field.
lDeactivates all the safety outputs if a failure is detected in one of the sensors or the
control.
lManages the inputs and outputs.
lCommunicates with the safeRS3 Designer application for all configuration and
diagnostic functions.
lAllows dynamically switching between different configurations.