Festo CPX-F8DE-P User manual

CPX-F8DE-P
Input module
Manual
8035497
8035497
2022-10d
[8174432]

Translation of the original instructions
CAGECLAMP, PI PROFIBUS PROFINET, PROFIsafe, SIEMENS are registered trademarks of the respec-
tive trademark owners in certain countries.

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Table of contents
1 Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Important user information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.1 Danger categories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.2 Marking of special information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 General safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Rules for product configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.5 Foreseeable misuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.6 Achievable safety classification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.7 Failures due to a common cause (Common Cause Failure – CCF). . . . . . . . . . . . . . . . . . . 10
1.8 Requirements for product use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.8.1 Technical prerequisites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.8.2 Training of qualified personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.8.3 Product conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.8.4 UL/CSA certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.9 Transport and storage conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.10 Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.11 Specified directives and standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.12 Product identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.13 Information regarding this description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.14 Product-specific terms and abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2 System overview CPX-F8DE-P. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.1 CPX terminal with CPX-F8DE-P. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.1.1 Structure of the input module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.1.2 Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.1.3 Supported CPX product versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.1.4 Required bus topology (control chain). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.2 PROFIsafe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.2.1 PROFIsafe safety profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.2.2 Process image (I/O image). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.2.3 Bit pattern of the output and input data (F-user data). . . . . . . . . . . . . . . . . . . 26
2.2.4 Channel-based passivation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.3 Mode of operation of the input module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.3.1 Safe system status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2.3.2 Overview of applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2.3.3 Details of the function modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.3.4 Use of clock signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
2.3.5 Channel bundling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

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2.4 Application examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2.4.1 Control desk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
2.4.2 Rotary indexing table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.4.3 Limit position switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
2.4.4 Light curtain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.4.5 Acknowledge button with request. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.4.6 2 two-wire sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2.4.7 2 safety doors on one channel pair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2.4.8 Safety door with two N/O switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
3 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.1 General information about installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.1.1 Module-related rules for configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.2 Electrical connection and display elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.2.1 Pin allocation on the manifold block CPC-M-AB-4-M12X2-5POL-T. . . . . . . . . . 53
3.2.2 Pin allocation on the manifold block CPX-M-AB-4-M12X2-5POL. . . . . . . . . . . 54
3.2.3 Pin allocation on the manifold block CPX-AB-8-KL-4POL. . . . . . . . . . . . . . . . . 55
3.3 Installation of the electronics module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.3.1 Demounting the electronics module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
3.3.2 Installing the electronics module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
3.4 Setting the PROFIsafe address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
3.5 Connection of sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3.5.1 Ensuring the degree of protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.1 Compatible bus nodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.2 Device master file (GSDML and GSD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.3 Module identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.4 Preparing for commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.5 Commissioning steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.6 Setting the PROFIsafe parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.7 Reading out the CPX module parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.7.1 Parameter and signal display with the operator unit CPX-MMI-1. . . . . . . . . . . 64
4.8 Configuration with SIEMENS STEP 7 (example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4.8.1 Addressing example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
5 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
5.1 LED status indication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
5.1.1 Behaviour during the start-up phase (start-up). . . . . . . . . . . . . . . . . . . . . . . . . 70
5.1.2 Normal operating status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
6 Diagnostics and error handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.2 Error characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.3 Diagnostics using LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6.3.1 Behaviour in response to original module errors. . . . . . . . . . . . . . . . . . . . . . . . 78
6.3.2 Behaviour in response to channel errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

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6.4 Diagnostics via the bus node. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
6.4.1 Diagnostics with the operator unit CPX-MMI. . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7 Service, repair, disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7.1 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7.2 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7.3 Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
8 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
8.1 Approval information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
8.2 Safety characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
8.3 Characteristic values of the input module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
8.4 Technical data of the manifold blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

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1 Safety
1.1 Important user information
1.1.1 Danger categories
This description includes information on the possible dangers that can occur if the product is used
incorrectly. The danger warnings are marked with a signal word (warning, caution etc.) with grey
background and additionally identified with a pictogram. The following types of danger warnings are
defined:
WARNING
Dangers which could lead to death or serious injuries.
CAUTION
Dangers which could lead to minor injuries or to serious material damage.
NOTICE
Material damage or loss of function.
1.1.2 Marking of special information
The following pictograms mark passages in the text that contain special information.
Pictograms
Information:
Recommendations, tips and references to other sources of information.
Accessories:
Information about necessary or useful accessories for the Festo product.
ENVIRONMENT
Environment:
Information about the environmentally friendly use of Festo products.
Text symbols and markers
1. Ordinal numbers denote activities …
2. … that must be carried out in the order specified.
–Indents denote general lists and activities that can be carried out in any order.
• In warnings, general lists and activities that can be carried out in any order are denoted by bullet
points.

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1.2 General safety instructions
WARNING
Disregarding the safety instructions can result in death, serious injuries or major material damage.
• Observe the safety instructions and warnings.
• Refer to the brief description for the safety engineering requirements èCPX-F8DE-P-...
NOTICE
Electronics modules include electrostatically sensitive devices. Incorrect handling can cause damage
to the electronics modules.
• Observe the handling specifications for electrostatically sensitive devices.
• Discharge static electricity from your body before assembling or disassembling modules to protect
the modules.
Observe the instructions for electrical power supply (protective extra-low voltage, PELV) to CPX termi-
nals in the CPX system description CPX-SYS-...
1.3 Intended use
The input module CPX-F8DE-P is intended for reliable recording and evaluation of signals of connected
sensors.
The input module provides up to eight secure inputs that can be used by a higher-order safety
controller in a safety function. The communication with the higher-level safety control is implemented
by the secure PROFIsafe protocol via a PROFIBUS or PROFINETIO fieldbus connection.
The inputs on the input module can be combined for multi-channel sensor applications. Two inputs
combined form a channel pair, which is set separately with one of 11 function modes. The function
modes influence the evaluation of the input signals and optionally the generation of clock signals.
The characteristics of the inputs comply with the IEC 61131-2 standard for Type 2 digital inputs.
The input module CPX-F8DE-P is a product with safety-relevant functions. The input module is
intended for installation in machines or automation-technology systems and may be used only as
follows:
–in excellent technical condition
–in its original condition, without unauthorised modifications
–exclusively in the configurations specified in this description
è2.3.3 Details of the function modes
–within the limits of the product defined by the technical data
è8 Technical data
–in an industrial environment.
NOTICE
•Note that the safety engineering system limits of the product are also its physical limits.
The user is responsible for use of the input module in a safety function.

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Safety
1.4 Rules for product configuration
Operation of the input module CPX-F8DE-P is permissible exclusively in CPX terminals.
Operation of the CPX-F8DE-P is permissible only in combination with the following PROFIsafe-compat-
ible bus nodes:
Bus node from revision Network protocol
CPX-FB131) 30 PROFIBUS
CPX-FB332) 21 PROFINETIO
CPX-M-FB342) 21 PROFINETIO
CPX-M-FB352) 21 PROFINETIO
CPX-FB432) 50 PROFINETIO
CPX-M-FB442) 50 PROFINETIO
CPX-M-FB452) 50 PROFINETIO
1) è Description of CPX-FB13
2) è Description of CPX-(M)-FB33/34/35/43/44/45
Tab. 1: Permissible PROFIsafe-compatible bus nodes
–Use exclusively metal interlinking blocks – e.g. CPX-M-GE-EV èFurther information.
–Comply with all technical data è8 Technical data.
Otherwise, malfunctions can occur.
The CPX-F8DE-P may only be operated with the following manifold blocks:
Manifold block Sample application
CPX-M-AB-4-M12X2-5POL-T Connection of OSSD sensors with a current consumption up to 0.7 A
–Power supply via contacts T0, T2, T4, T6
Connection of sensors for mechanical switch contacts
–Clock signals via contacts T0...T7
CPX-M-AB-4-M12X2-5POL Connection of OSSD sensors with a current consumption up to 2A
CPX-AB-8-KL-4POL Connection of sensors via the terminal strip
CPX-AB-ID-P Setting of a coded identifier using an 8x DIL switch
–It is not possible to connect sensors
Tab. 2: Permissible manifold blocks
For more information about the supported product versions of CPX see
è2.1.3 Supported CPX product versions.

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1.5 Foreseeable misuse
The following foreseeable misuse is among those not approved as intended use:
–outdoor operation
–use in non-industrial areas
–use outside the limits of the product defined in the technical data
–use with inappropriate function modes
–unauthorised modifications
NOTICE
The use of connection and interlinking blocks that are not specified is not permissible
èTab. 9 Permissible manifold blocks
èTab. 11 Permissible interlinking blocks.
NOTICE
The use of the input module CPX-F8DE-P for implementation of safety circuits is not permissible in the
following cases:
•in a CPX terminal equipped with CPX-FEC or CPX-CEC
• in a CPX terminal of variant P
• in configurations other than the configurations stated è2.3.3 Details of the function modes.
NOTICE
In the event of damage caused by unauthorised manipulation or use other than the intended use, the
guarantee will be invalidated and the manufacturer will not be liable for damages.
1.6 Achievable safety classification
The CPX-F8DE-P can be used to implement safety functions up to:
–Performance Level e, Cat. 4, in accordance with EN ISO 13849-1
–Safety integrity level SIL 3 in accordance with EN 61508
–Performance Limit SIL CL 3 in accordance with EN 62061.
The achievable safety classification of the overall safety device depends on the set function mode as
well as other components used to implement the safety function.
–Make sure that the overall safety function of the system is analysed and validated. It is the responsi-
bility of the operator to determine and verify the required safety classification (safety integrity level,
performance level and category) of the system.
–Be aware of the residual risks that remain in your system despite the measures to integrate safety
in the design, despite safety precautions and despite the supplementary protective measures.
The residual risks are determined, among other things, by your safety regulations and the safety
characteristics of your system.

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Safety
NOTICE
Information on compliance with a safety classification
• Test the functionality of the safety device at adequate intervals. Recommendation:
• at least 1x per year for PL d
• at least 1x per month for PL e
The operator is responsible for selection of the type of test and the time intervals between the tests.
•Conduct the tests in order to ensure that the correct function of the safety device is verified and
documented in interaction with all components.
•Ensure that, after every security requirement resulting from a self-diagnostic test, the system
undergoes troubleshooting and a restart under the supervision of the responsible personnel.
1.7 Failures due to a common cause (Common Cause Failure – CCF)
Common cause failures cause the loss of the safety function, since all channels in a multichannel
system fail simultaneously.
The following measures ensure that common cause failures are prevented:
–Comply with operating voltage range
–Comply with signal voltage range
–Comply with temperature and environmental conditions.
The application may result in additional measures to avoid common cause failures.
1.8 Requirements for product use
–Make this description available to the design engineer, installation technician and personnel
responsible for commissioning the machine or system in which this product is used.
–Make sure that the specifications in the documentation are observed at all times. Also comply with
the documentation for the other components and modules (e.g. bus nodes, pneumatics, etc.).
–Take into consideration the legal regulations applicable for the location as well as:
–instructions and standards
–regulations of the testing organisations and insurers
–national specifications.
–Remove all packaging, such as foils, caps and cardboard. The material used in the packaging has
been specifically chosen for its recyclability (exception: oiled paper = residual waste).
–Assembly must be performed in a professionally correct manner.
To maintain the IP degree of protection:
–screw the manifold block tightly to seal it è3.3 Installation of the electronics module
–assemble cable entries and seals in a professionally correct manner
–seal unused connections with cover caps.
1.8.1 Technical prerequisites
General technical prerequisites for correct and safe use of the product:
–Comply with all limits of the product defined by the technical data
è8 Technical data.
Only then is operation of the product guaranteed in accordance with the relevant safety regulations.
–When connecting standard auxiliary components, also observe the specified limit values for elec-
trical connection values and ambient conditions.

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1.8.2 Training of qualified personnel
The device may only be commissioned by trained, qualified control and automation technology techni-
cians, who are familiar with:
–the installation and operation of control systems
–the applicable instructions for operating safety engineering systems
–the applicable instructions for accident prevention and occupational safety
–the documentation for the product.
NOTICE
Work on safety engineering systems may only be carried out by qualified personnel trained in safety
engineering.
1.8.3 Product conformity
The product-relevant directives are listed in the declaration of conformity èwww.festo.com/sp.
Product conformity
in accordance with EU EMC Directive
in accordance with EU Machinery Directive
in accordance with EU RoHS Directive
to UK EMC Regulations
to UK Supply of Machinery Regulations
to UK RoHS Regulations
Tab. 3: Product conformity
1.8.4 UL/CSA certification
Certain configurations of the product have been certified by Underwriters Laboratories Inc. (UL) for the
USA and Canada.
These configurations bear the following mark:
UL Recognized Component Mark for Canada and the United States
Only for connection to an NEC Class 2 supply.
Raccorder Uniquement a un circuit de Classe 2.
Observe the following if your application must be in compliance with the UL requirements:
–Regulations for compliance with the UL certification can be found in the separate UL-specific special
documentation.
The relevant technical data in that documentation also takes priority if it does not influence the
safety engineering values in an impermissible manner.
–The technical data in this documentation may show values deviating from this.
1.9 Transport and storage conditions
–Protect the product from excessive stress factors during transport and storage, such as:
–mechanical loads
–impermissible temperatures

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Safety
–moisture
–aggressive atmospheres.
–Store and transport the product in its original packaging. The original packaging offers sufficient
protection from typical stresses.
1.10 Service
Contact your local Festo Service centre in the event of technical problems.
1.11 Specified directives and standards
Version
EN ISO 13849-1:2015 EN 61508 Part 1-7:2010
EN ISO 13849-2:2012 EN 62061:2021
EN 13851:2019 IEC 61131-2:2017
EN 60529:1991 + A1:1999 + A2:2013 + AC:2019 IEC 60204-1:2018
Tab. 4: Standards specified in the document
1.12 Product identification
The product identification is the module identifier and the product labelling. The module identifier can
be seen through the transparent covering on the manifold block.
Module identifier Meaning
–Module identifier 1:
F8DIP (F=Safety; 8=Number; D=Digital;
I=Inputs; P=PROFIsafe)
–yellow background 2 for identification of the
safety function
Tab. 5: Module identifier of the input module CPX-F8DE-P
The product labelling enables identification of the product and shows the following information,
forexample:
Product labelling (example) Meaning
CPX-F8DE-P Order reference
2597424 Part number
MM-YYYY:XX Rev XX MM = manufacturing month
YYYY = manufacturing year
XX = plant number
Rev XX = revision code
CE, UKCA and DataMatrix code Identification
12345678901234 14-character serial number

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Product labelling (example) Meaning
Festo SE & Co. KG Manufacturer
DE-73734 Esslingen Manufacturer’s address
Tab. 6: Product labelling (example)
Additional information can be found in the CPX system description CPX-SYS-...
1.13 Information regarding this description
This description contains general, basic information about how to operate, assemble and install the
input module CPX-F8DE-P in conjunction with the CPX terminal and refers exclusively to the following
revisions of the input module:
This description applies to the following product
Product Part number Revision1)
CPX-F8DE-P 2597424 Rxx
1) xx stands for a number from 01 to 99
Tab. 7: Applicability
General basic information about operating, assembling, installing and commissioning CPX terminals
can be found in the CPX system description.
Special information about commissioning, parameterisation and performing diagnostics on a CPX
terminal with the bus node you are using can be found in the corresponding description for your bus
node. Information about other CPX modules can be found in the separate description of that module.
Information about the pneumatics can be found in the corresponding pneumatics descriptions.
An overview of the user documentation structure for the CPX terminal can be found in the CPX system
description CPX-SYS-…
1.14 Product-specific terms and abbreviations
Term/abbreviation Meaning
Output image èProcess image at output of safety control unit
Input channel Input circuits in accordance with IEC 61131-2 for Type 2 digital inputs to
record signals from connected sensors.
CRC signature Check value in the PROFIsafe safety telegram to check the integrity of
the telegram data (cyclic redundancy check).

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Term/abbreviation Meaning
Depassivation In the “Passivation by channel” operating mode depassivation involves
setting the acknowledge bit in the output data
è2.3.2 Overview of applications.
In the "Passivation by module" operating mode depassivation involves
èreintegration.
Wire break detection Function that, under certain conditions, detects and reports a wire
break.
Input image èProcess image at the input of the safety control unit
Replacement value Preset safe value that replaces the real process value or the pro-
grammed value in the event of a malfunction or when booting safety-
related systems.
The value0 is transmitted in the input image with the CPX-F8DE-P
(digital inputs).
F-Device Collective term for safety-related devices
èSafety control unit.
F-Host Safety control unit for controlling safety-related devices.
F-System Safety-related system that restores a safe state in the event of dan-
gerous system and device errors.
GSDML/GSD Device description file
i-Parameters Technology-specific individual parameters for a defined device.
Channel èInput channel
Category Category (cat.) is a scale for the resilience of a safety-related system to
errors and its subsequent response to an error, which is achieved by the
structural arrangement of the parts, error detection and their reliability
èEN ISO 13849-1.
Channel-based passivation Type of passivation whereby only the channel pair of the affected
defective input channel is passivated. The input module remains inte-
grated. An acknowledgement signal via the process image is required
for depassivation è2.2.4 Channel-based passivation.
Short circuit Connection of switching points with normally different electrical poten-
tials, e.g. of 0V and 24V of one voltage source.

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Term/abbreviation Meaning
Module-based passivation Type of passivation in which all channel pairs of the input module are
passivated,e.g.:
–with safety-related communication errors (PROFIsafe)
–in the case of self-test errors
–channel errors if “channel-based passivation" is switched off.
Regular re-integration is required with "module-based passivation"
(standard PROFIsafe process for acknowledgment).
–The input module sets the “Device_Fault” signal.
–As soon as the cause of the error has been remedied, the input
module automatically cancels the “Device_Fault” signal. With errors
that cannot be remedied during runtime, “Device_Fault” remains set
until the next time the system is powered down.
–To ensure that substitute values (0) continue to be transmitted once
the cause of the error has been remedied, the safety control unit
can transmit “Activate_FV” to the input module. The input module
responds with “FV_Activated” until the safety control unit displays
the “Activate_FV” signal to indicate that safe operation with process
values is possible again.
N/O Abbreviation for normally open contact èsensor
N/C Abbreviation for normally closed contact èsensor
OSSD Output Signal Switching Device. Sensor with autonomous line moni-
toring.
Passivation Safety function in which the input module CPS-F8DE-P is automatically
set to the safe status for all input channels (èmodule-based passi-
vation) or only for defective input channels (èchannel-based passiva-
tion) depending on the specific error. Instead of the process values
èsubstitute values (0) are transmitted.
Performance Level (PL ...) Discrete characteristics level that specifies the capacity of safety-
related parts of a safety control unit to perform a safety function under
defined conditions. ENISO13849-1 defines 5levels. PLa is the lowest
level and PLe the highest.
PROFIBUS Standard for fieldbus communication between controllers (PLC/IPC) and
devices in automation technology (PROcess Field BUS)
èwww.profibus.com
PROFINETIO Fieldbus standard based on Industrial Ethernet for communication
between controllers (PLC/IPC) and devices
èwww.profibus.com.

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Term/abbreviation Meaning
PROFIsafe Safety-related bus profile for PROFIBUS and PROFINETIO that, in con-
junction with PROFIsafe-compliant devices (F-Host and F-Device), facili-
tates correct and reliable transmission of safety messages.
Mechanisms for safe transmission and error detection:
–CRC signatures (data integrity test)
–consecutive numbering of the safety messages,
–address checking èPROFIsafe address
–time monitoring.
In the event of errors, the F-Device can automatically trigger predefined
safety measures. The consecutive numbering enables the recipient to
check that all messages are received in the right order.
For this purpose, the F-Host and the F-Device have their own state
machines, which are synchronised using a control and status byte.
Correct synchronisation is monitored by incorporation of counter values
in the calculation of the CRC signature.
PROFIsafe address In order to identify the addressee of a message, every PROFIsafe-ena-
bled device or module has its own unique PROFIsafe address. The PRO-
FIsafe address is specified in the configuration program and set via the
DIL switch on the PROFIsafe-enabled device or module. Configuration
errors are automatically detected by comparing the target and actual
configuration.
PROFIsafe monitoring time Monitoring time for safety-related communication between F-Host and
F-Device.
Process image The process image is part of the controller system memory. At the
start of the cyclical program, the signal states of the input modules
are transferred to the process image for the inputs. At the end of the
cyclical program, the process image for the outputs are transferred to
the output modules as the signal state.
Process error The monitored sensor signals have taken an invalid combination.
Cross circuit Accidental electrical connection between signals. Cross circuits falsify
the signal and cause loss of the safety function.
Cross-circuit monitoring Function that detects possible cross-circuiting in the circuits connected
to the device and that sets a safe mode for the device and/or for the
input channel affected. This can be implemented by
ècycle monitoring and/or discrepancy monitoring.

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17
Term/abbreviation Meaning
Acknowledgement Signal or procedure for depassivation. An acknowledgment from
the user confirms that the input module can be brought back on
line without danger, and/or that the input channel can be depassi-
vated without any risk. If the complete input module is passivated
(èmodule-wise passivation), the acknowledgment is sent by regular
èreintegration (standard PROFIsafe process).
If one input channel is passivated (èchannel-based passivation), the
acknowledgment is sent by an acknowledgment signal of the process
image è2.2.3 Bit pattern of the output and input data (F-user data).
Reintegration Reintegration is the standard PROFIsafe process for reintegrating passi-
vated modules.
Black channel
("Black Channel")
The “black channel” is the name given to a transmission route without
safety engineering properties across which secure communication is
possible by the addition of fail-safe mechanisms. For example, the
fieldbus and the bus node (PROFIBUS or PROFINETIO) are part of
the black channel through which the PROFIsafe communication is pro-
cessed.
Sensor In the context of the safety engineering evaluation a sensor is a device
that converts the safety engineering status of a system into digital
switch signals,e.g. emergency stop switch, light curtain, door switch.
Safe state Status in which a system works with secured process values or safe
substitute values to prevent potentially dangerous movements or other
types of hazard.
Safety classification Specification for functional safety, consisting of
èPerformance Level,
ècategory and
èsafety integrity level.
Safety-related communica-
tion
Exchange of safety messages between the F-Host and F-Device (e.g. via
èPROFIsafe).
Safety pilot circuit Safety circuit including safety-related control by the controller.
Safety integrity Effectiveness of safety functions in a safety-related system under
requirement-based parameters governing the use of a product
(e.g.voltage, temperature, industrial environment, PELV).
Safety integrity level Safety integrity level (SIL) for safety-related systems in accordance with
EN61508. There are 4 levels (SIL 1 to SIL4). SIL1 is the lowest level
and SIL4 is the highest level of safety integrity. The higher the level,
the less probable it is that the system will fail in a dangerous manner.
Safety chain All elements of a safety device.

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Term/abbreviation Meaning
Safety circuit Total of all signals processed for a safety function and their sources.
Example: 2 door switches including wiring and 2 related discrepancy-
monitored inputs, their monitoring and the related safety engineering
actuator technology.
Safety program Safety-related user program in the F-Host.
Safety control unit Programmable logic controller with special elements for processing safe
input information into safe output information.
SIL èsafety integrity level.
SIL CL SILClaim Limit: claim limit for subsystems in a safety-related electrical
control system.
Clock output Output with a specific clock signal that is directed by a sensor and is
detected by a related input. This clock signal is clearly distinguished
from other similar functional cycles and enables diagnostics of cross
circuits on the switched signals.
Clock signal monitoring In the function modes with clock signal monitoring, the inputs are used
to detect if the actual clock signal, an external clock signal or the sensor
power supply is applied. The information is not released in the PROFI-
safe input image until the anticipated clock signal has been detected.
Test pulse Fast switch pulse (e.g.fromOSSD sensors) for monitoring the
switching capacity and detection of cross circuits
èforced switch on/off. Test impulses are tolerated up to a max. dura-
tion of 0.7ms.
Reintegration Switching from substitute values to process values = depassivation
(èpassivation).
Reintegration is a standard PROFIsafe process for depassivation of a
passivated module (PROFIsafe specification).
Forced switch on/off Function testing procedure to determine the switching capacity of sig-
nals. The procedure is often used with outputs in the form of test pulses
and on clocked inputs. Generally speaking, many safety-related signals
can be found to have forced switch on/off for detection of short circuits
and cross circuits.
Tab. 8: Product-specific terms and abbreviations

Festo — CPX-F8DE-P — 2022-10d
System overview CPX-F8DE-P
19
2 System overview CPX-F8DE-P
2.1 CPX terminal with CPX-F8DE-P
2.1.1 Structure of the input module
1 2 3
4
5
6
7
8
9
10
Fig. 1: Design of the input module CPX-F8DE-P
1
Manifold block
CPX-M-AB-4-M12X2-5POL(-T)
2
Manifold block CPX-AB-8-KL-4POL
3
Manifold block CPX-AB-ID-P with internal 8x
DIL switch for coding
4
Electronics module CPX-F8DE-P
5
10-way DIL switch for PROFIsafe address
6
Interlinking block with busbars, e.g. CPX-M-
GE-EV
7
Product labelling
8
Electrical plug connector between elec-
tronics module and manifold block
9
LEDs of the electronics module
10
Retaining screws
• Use only metal interlinking blocks.

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System overview CPX-F8DE-P
2.1.2 Components
2.1.2.1 Manifold blocks
The manifold block provides the input module with connection technology. The CPX-F8DE-P may only
be operated with the following manifold blocks:
Manifold block description
CPX-M-AB-4-M12X2-5POL-T M12 metal connection technology
–4M12 sockets with metal thread, 5-pin
–for the use of sensors with static or clocked24VDC power supply
–for the use of sensors with a current consumption up to0.7A
–degree of protection IP65 when using cover caps ISK-M12 for
unused connections
CPX-M-AB-4-M12X2-5POL M12 metal connection technology
–4M12 sockets with metal thread, 5-pin
–for the use of sensors with static24VDC power supply only
–for the use of electronic sensors with current consumption up
to2A
–degree of protection IP65 when using cover caps ISK-M12 for
unused connections
CPX-AB-8-KL-4POL Terminal strip connection technology
–2 terminal strips, 16-pin (4 x 4-pin)
–all cores can be placed individually in a spring-loaded terminal
–Connections combined in groups of 4 with one functional earth
connection for each group
–for the use of sensors with static or clocked24VDC power supply
–for the use of sensors with mechanical switch contacts and elec-
tronic sensors with a current consumption up to0.7A
–Degree of protection IP20
–Degree of protection IP65 with use of covering AK-8KL
CPX-AB-ID-P Manifold block without connection technology
–coded identifier
Tab. 9: Permissible manifold blocks