Festo CPX-F8DE-P Parts list manual

Input module CPX-F8DE-P
Festo SE & Co. KG
Postfach
73726 Esslingen
Germany
[phone]
www.festo.com
Brief description (translation of the original instructions) 8135871
2005a
[8135873]
Original: de
English............................................................
CAGE CLAMP®, PIPROFIBUSPROFINET®, SIEMENS®are registered trademarks of
the trademark owners in specific countries.
1 Safety instructions
Warning
Non-observance of safety instructions can result in death, serious injuries or
major material damage.
 Observe the safety instructions and warnings.
1.1 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 safe PROFIsafe protocol via
aPROFIBUS or PROFINETIO fieldbus connection.
The inputs on the input module can be combined for multi-channel sensor
applications. Every 2 inputs form a channel pair, which is set separately with one of
11 function modes. The function modes influence the evaluation of input signals
and optionally the generation of clock signals.
The characteristics of the inputs comply with standard IEC61131-2 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 named here (èSection5.5)
– within the limits of the product defined by the technical data (èSection 7),
– in an industrial environment.
Note
Note that the safety limits of the input module are also its physical limits.
1.2 Rules for product configuration
Operation of the input module CPX-F8DE-P is permissible exclusively in Festo
CPXterminals.
 Comply with all technical operating limits (èSection7). Otherwise,
malfunctions can occur.
Operation of the CPX-F8DE-P is permitted only in combination with the following
PROFIsafe-capable bus nodes, recognisable by the product labelling on the bus
nodes (èSection2).
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Operating instructions CPX-(M)-FB33/34/35/43/44/45...
Fig. 1 Permissible PROFIsafe-compatible CPX bus nodes
The CPX-F8DE-P may only be operated with the following manifold blocks:
Manifold block Application examples
CPXMAB4M12X25POLT Connection of OSSD sensors with a current consumption of
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 of
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.
Fig. 2 Permissible manifold blocks
The CPX-F8DE-P may only be operated with the following interlinking blocks:
Interlinking block Power supply feed/forwarding
CPX-M-GE-EV None
CPX-M-GE-EV-S-7/8-CIP-4P With system supply, connection: 7/8'' (4-pin)
CPX-M-GE-EV-S-7/8-5POL With system supply, connection: 7/8'' (5-pin)
CPX-M-GE-EV-S-PP-5POL With system supply, connection: push-pull (5-pin)
CPX-M-GE-EV-S-M12-5POL With system supply, connection: M12 (5-pin)
CPX-M-GE-EV-Z-7/8-5POL With additional supply, connection: 7/8” (5-pin)
CPX-M-GE-EV-Z-PP-5POL With additional supply, connection: push-pull (5-pin)
CPX-M-GE-EV-W-M12-5POL With voltage forwarding, connection: M12 (5-pin)
Fig. 3 Permissible interlinking blocks
Detailed information about the product, the supported product versions
and required software versions as well as the permissible components
ofthe CPX terminal can be found in the CPX system description
P.BE-CPX-SYS-... (èwww.festo.com/sp).
Information about permissible configurations of the CPX terminal in
combination with the input module can also be found in the catalogue
(èwww.festo.com/catalogue).
1.3 Foreseeable misuse
The following foreseeable misuses are among those not approved as
intendeduse:
– use outdoors
– use in non-industrial areas
– use outside the limits of the product defined in the technical data
– use with inappropriate function modes
– unauthorised modifications.
Note
The use of connection and interlinking blocks that are not specified is not
permitted (èSection1.2).
Note
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 those listed (èSection5.5).
Note
In the event of damage caused by unauthorised manipulation or any form
ofuseother than the intended use, the warranty will be invalidated and the
manufacturer will not be liable for damages.

1.4 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 attainable 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 responsibility 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.
Note
 Test the functionality of the safety device at adequate intervals.
Recommended:
– 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.
 Choose the test so that smooth functioning of the safety device in interaction
with all components can be verified and is documented.
1.5 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 avoided:
 Comply with operating voltage limits
 Comply with signal voltage limits
 Comply with temperature and environmental conditions.
The application may result in additional measures to avoid common cause failures.
1.6 Requirements for product use
 Make this brief description available to the design engineer, installation
technician and personnel responsible for commissioning the machine or system
in which this product is used.
 Keep this brief description throughout the entire product lifecycle.
 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 on tight (èSection4.2)
– Mount cable entry and seals in a professionally correct manner
– Seal unused connections with cover caps.
 If the system had to be shut down for safety reasons, make sure the safety
control unit monitors/controls all system restarts.
 Make sure that, after each safety request due to a self-diagnostic test,
thesystem does not automatically eliminate errors and restart itself.
1.7 Technical prerequisites
General information on correct and safe use of the product, which must be
observed at all times:
 Comply with the technical operating limits (èSection7).
Only then is operation of the product ensured in accordance with the relevant
safety regulations.
 When connecting standard auxiliary components, also observe the specified
critical limits for temperatures, electrical data and torques.
1.8 Training of qualified personnel
The device may only be commissioned by trained, qualified control and automation
technology personnel, 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.
Note
Work on safety engineering systems may only be carried out by qualified
personnel trained in safety engineering.
1.9 Transport and storage conditions
 Protect the product from excessive stress factors during transport and storage,
such as:
– mechanical loads
– impermissible temperatures
– 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 Range of application and approvals
This product is a safety device as defined in the Machinery Directive
2006/42/EC and carries the CE marking.
Safety-related standards and test values which the product complies
withand fulfils can be found in the “Technical data” section.
Theproduct-relevant EC directives and standards can be found in the
Declaration of Conformity è www.festo.com/sp
 Observe that compliance with the named standards is limited to the input
module CPX-F8DE-P.
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 a NEC/CEC Class 2 supply.
Raccorder Uniquement a un circuit de NEC/CEC Classe 2.
Note
Observe the following if the UL requirements are to be complied with in your
application:
– Regulations for complying with the UL certification can be found in the
separate UL-specific special documentation. The relevant technical data in
that documentation also apply with priority if they do not influence the safety
engineering values in an impermissible manner.
– The technical data in this documentation may show values deviating
fromthis.
Specified directives and standards
ENISO13849-1:2008-06+AC:2009 EN61508Parts1-7:2010
ENISO13849-2:2012 EN62061:2005-04+AC:2010+A1:2013
EN574:1996+A1:2008 IEC61131-2:2007-07
EN60529:1991+A1:1999+A2:2013 IEC602041:2005/A1:2009+AC:2010
Fig. 4 Directives and standards specified in the document
2 Product identification
The product identification is the module identifier plus the product labelling.
Themodule identifier can be seen through the transparent covering on the
manifold block.
Module identifier Meaning
F8
DI
P
FP
0
1
2
3
4
5
6
7
1
– Module identifier 1:
F8DIP (F=Safety; 8=Number; D=Digital;
I=Inputs; P=PROFIsafe)
Fig. 5

The product labelling of the electronics module CPX-F8DE-P (èFig. 6) shows the
following information:
Product labelling (example) Meaning
2
3
4
5
6
1
7
– Product designation 1
– Part number 71)
– Revision code (here R 02) 2
– Serial number shown as data matrix
code 42)
– Manufacturer and manufacturer’s
address 5
– 14-character serial number 62)
– Manufacturing period
(encoded, here F5 = May 2015) 33)
1) Part number of the electronics module CPX-F8DE-P.
2) The serial number enables the product to be traced.
3) èDescription P.BE-CPX-F8DE-P-...
Fig. 6 Product label of the electronics module CPX-F8DE-P
Additional information can be found in the CPX system description
P.BE-CPX-SYS-...
 Before using an input module, check whether the revision of the bus node
corresponds to the requirements of the input module (èFig. 1).
This brief description applies to the following product
Product Part number Revision 1)
CPX-F8DE-P 2597424 Rxx
1) xx stands for a number from 01 to 99 (èFig. 63)
Fig. 7 Applicability
3 Connection and display components
3.1 Design of the input module
6
1
4
5
7
8
9
3
2
aJ
1Manifold block
CPX-M-AB-4-M12X2-5POL(-T)
2Manifold block CPX-AB-8KL-4POL
3Manifold block CPX-AB-ID-P with
internal 8x DIL switch for coding
4Electronics module CPX-F8DE-P
510-way DIL switch for PROFIsafe
address
6Interlinking block with contact rails,
e.g. CPX-M-GE-EV
7Product labelling
8Electrical push-in connector
between electronics module and
manifold block
9LEDs of the electronics module
aJ Retaining screws
Fig. 8 Design of the input module CPX-F8DE-P
Note
Malfunctions possible due to absent shielding.
 Use only metal interlinking blocks.
4 Installation
Warning
Electric voltage
Injury caused by electric shock, damage to machine and to system.
 For the electrical power supply, only use PELV power circuits in accordance
with IEC 60204-1 (Protective Extra Low Voltage, PELV).
 Note the general requirements of IEC60204-1 for PELV power circuits.
 Use only voltage sources that guarantee a reliable electric separation of
operating and load voltage in accordance with IEC 60204-1.
 Always connect all of the power circuits for operating and load voltage
supplies UEL/SEN, UVAL and UOUT.
Protection from electric shock (protection from direct and indirect contact)
inaccordance with IEC 60204-1 (Electrical equipment of machines, General
requirements) is guaranteed with the use of PELV circuits.
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 regulations for the electrical supply
(Protective Extra-Low Voltage, PELV) of CPX terminals in the
CPX system description P.BE-CPX-SYS-….
Monitoring of the sensor wiring for cross circuits depends on the
functional modes used (è Section5.5).
 Switch off the supply voltages before assembly or installation.
 Switch on the electrical supply voltage only when the product is completely
mounted and all installation work is finished and checked.
4.1 Setting the PROFIsafe address
The electronics module of the CPX-F8DE-P includes a 10x DIL switch for setting an
address for PROFIsafe communications. The CPX-F8DE-P must be disassembled in
order to change the address.
Note
Damage to the electronics module due to incorrect handling.
Before disassembly or mounting (èSection 4.2):
 Switch off operating voltage supply.
Note
This PROFIsafe module accepts any PROFIsafe host address and thus fulfils the
requirements for PROFIsafe address type 1.
1. Remove manifold block (èSection 4.2).
2. Carefully set the PROFIsafe address at the 10x DIL switch with a small
screwdriver (èFig. 9). Permitted addresses: 1 … 1022 (binary coded).
10-way DIL switch Address value Addressing example
DIL1 = 1
DIL2 = 2 + 2
DIL3 = 4
DIL4 = 8
DIL5 = 16
DIL6 = 32
DIL7 = 64 + 64
DIL8 = 128
DIL9 = 256
DIL0 = 512 + 512
= 578
Fig. 9 10-way DIL switch of the electronics module
3. Replace the manifold block (èSection 4.2).

4.2 Dismantling and mounting
The plugs connected to the manifold block can remain attached while
disassembling the manifold block.
To disassemble (èFig. 8):
1. Switch off the operating and load voltage supply of the CPX terminal.
2. Unscrew retaining screwsaJ.
3. Carefully lift off manifold block 1, 2or 3.
4. If required: carefully remove the electronics module4from the bus bars.
For assembly:
 Before mounting, make sure that the PROFIsafe address is correctly set at the
electronics module (èSection 4.1).
Note
 Make sure that the interlinking block (èFig. 86) is clean and free from
foreign matter, especially in the area of the contact rails.
 Check seal and seal surfaces. Replace damaged parts.
 Make sure the connecting surfaces are clean. This serves to maintain the
sealing effect and avoid contact errors.
1. Place the electronics module 4in the proper position and without jamming into
the interlinking block 6and press it in until it stops.
2. Align manifold block 1, 2or 3and place on the electronics module.
3. Screw retaining screws aJ into the existing threads.
4. Tighten retaining screws crosswise.
Tightening torque: 0.9 … 1.1 Nm.
4.3 Pin allocation on the manifold block
Pin allocation CPX-M-AB-4-M12X2-5POL CPX-M-AB-4-M12X2-5POL-T1)
2
3
1
5
4X1
1: 24V
2: I1
3: 0V
4: I0
5: FE
X3
1: 24V
2: I5
3: 0V
4: I4
5: FE
X1-T
1: T0
2: I1
3: 0V
4: I0
5: T11)
X3-T
1: T4
2: I5
3: 0V
4: I4
5: T51)
X2
1: 24V
2: I3
3: 0V
4: I2
5: FE
X4
1: 24V
2: I7
3: 0V
4: I6
5: FE
X2-T
1: T2
2: I3
3: 0V
4: I2
5: T31)
X4-T
1: T6
2: I7
3: 0V
4: I6
5: T71)
1) Never connect pin5 to functional earth (FE) on this manifold block.
Fig. 10 Pin allocation on the manifold block CPX-M-AB-4-M12X2-5POL(-T)
CPX-AB-8-KL-4POL
Pin allocation X1, X2, X3, X4 Pin allocation X5, X6, X7, X8
X1
0: 24V
1: 0V
2: I0
3: FE
X2
0: T0
1: T1
2: I1
3: FE
X3
0: 24V
1: 0V
2: I2
3: FE
X4
0: T2
1: T3
2: I3
3: FE
X5
0: 24V
1: 0V
2: I4
3: FE
X6
0: T4
1: T5
2: I5
3: FE
X7
0: 24V
1: 0V
2: I6
3: FE
X8
0: T6
1: T7
2: I7
3: FE
FE = functional earth
Fig. 11 Pin allocation on the manifold block CPX-AB-8-KL-4POL
5 Commissioning
5.1 Starting behaviour of the input module
The following LEDs are used for commissioning and on-site diagnostics and are
located under the transparent cover of the input module:
F8
DI
P
FP
0
1
2
3
4
5
6
7
1
2
34
1Module error LED (red)
2FP-LED (green) –
Fail-safe mode Protocol
3Channel error LED (red);
one per input channel
4Status LED (green);
one per input channel
Fig. 12 LED display of the input module CPX-F8DE-P
Note
The LED display of the input module is not designed for safety purposes.
 Please note that these LEDs should not be used for evaluation during
safety-related activities.
When the operating voltage supply UEL/SEN is switched on, the module error
LED1lights up for approx. 500 ms.
The FP-LED2flashes until the input module is correctly parameterised by
aPROFIsafe master.
In the normal operating status, the following LEDs light up:
– FP-LED2
– Status LEDs4of the active input channels
The status LEDs on inactive input channels and the module error LEDs1and
channel error LEDs3do not light.
Note
The designations of the LEDs correspond to the physical contacts E0 to E7.
 Note the special position of the input signals in the input image of the
CPX-F8DE-P.
Additional information can be found in the CPX system description
P.BE-CPX-SYS-...
5.2 Parameter
CBUS parameters1)
Offset Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Comments
22 0 0 0 0 0 0 0 0 Set PROFIsafe
address
(èsection4.1)
low, high
16 bits = 2 bytes
23 0 0 0 0 0 0 0 0
1) Read-only access
Fig. 13
5.3 I/O image
The safety features of PROFIsafe mean that the input module CPX-F8DE-occupies
7bytes for outputs and 6 bytes for inputs in the process image of the CPX terminal.
Output image (PAA)
The output image consists of 7 bytes, as follows:
– 3 bytes of output data (F-user data) èFig. 14
– 1 control byte in the PAA (for PROFIsafe communication)
– 3bytes CRC (for PROFIsafe communication).
Bit pattern of the output data
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
00000001/0 1/0
1 = channel-based passivation, 0 = module-based passivation
1 = acknowledgment of a channel error
18 4 2 1 8 4 2 1
Function mode for channel pair 7/6 Function mode for channel pair 5/4
28 4 2 1 8 4 2 1
Function mode for channel pair 3/2 Function mode for channel pair 1/0
Fig. 14 Bit pattern of the output data (F usage data, bytes0, 1 and 2)

Input image (PAE)
The input image consists of 6 bytes as follows:
– 2 bytes input data (F-user data) èFig. 15
– 1 status byte in the PAE (for PROFIsafe communication)
– 3bytes CRC (for PROFIsafe communication).
Bit pattern of the input data: byte0 and byte1
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0E7 E5 E3 E1 E6 E4 E2 E0
Input image
1Q7 Q5 Q3 Q1 Q6 Q4 Q2 Q0
Qx = 1: signal Ex is valid
Qx = 0: signal Ex is invalid, incorrect input function due to function mode/
channel error/module error
Fig. 15 Bit pattern of the input data (F-usage data, byte0 and byte1)
5.4 Safe system status
Whenever an error is diagnosed in the input information for the module, the
reaction depends on the selected module operating mode:
– With the “module-based passivation” operating mode (PAAbyte0, bit1=0)
the module passivation is performed in accordance with the PROFIsafe
specification.
– For the operating mode “channel-based passivation” (PAA byte 0, bit 1 = 1),
theaffected channel bits (Ex, Qx) in the input image (PAE byte 0 and 1) are set
to logic 0.
Module passivation is based on the PROFIsafe specification in the case of
adiagnosed internal module error.
In the case of a massive, stochastic failure of the module hardware, the PROFIsafe
timeout occurs as a system reaction.
5.5 Function modes of the input module
The input module CPX-F8DE-P includes various function modes for implementation
of safety circuits with recommended sensors (èFig. 29). The function modes can
be set separately for every channel pair.
Note
The following applies for all applications of sensors and switches in combination
with the corresponding function modes of the input module CPXF8DEP:
The achievable safety integrity level, performance level and category of your
system are limited by the component of the safety chain with the lowest charac
teristic value.
 Use only switches and sensors that meet the safety engineering requirements
of the application.
 When using well-tried components in accordance with EN13849-2, TableD.3,
calculate the safety classification from the respective manufacturer’s
specifications.
The specifications of the switches and sensors include information on safety
engineering considerations and operating conditions.
Note
Some function modes may restrict the manifold blocks that can be selected.
 Make sure that the manifold block required for the safety function is used.
Note
Malfunctions at unused inputs are possible.
 Make sure that function mode 0 is always set for unused channel pairs.
For function modes with clock signals:
– Clock outputs T1, T3, T5 and T7 have the same clock signal.
– Clock outputs T0, T2, T4, and T6 are out of phase to one other and
toT1/T3/T5/T7.
Function mode 0 – no signal evaluation
Circuit diagram Channel pair
connections
Comments
T0/
24V
T2/
24V
T4/
24V
T6/
24V
Signals are not evaluated on channel pairs
with this function mode.
When switching on the input module,
allchannel pairs are preset to this mode.
Thisfunction mode is used for initial
commissioning of wiring and sensors.
Both channels always generate a logic 0 as
input information and a logic 1 as qualifier in
the input image.
The signals of connected sensors are
displayed only at the status LEDs.
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1/
FE
T3/
FE
T5/
FE
T7/
FE
Functional safety
There is no safety-oriented evaluation in function mode 0.
Fig. 16 Function mode 0
Function mode 1 – 1oo1
(T0, T2, T4, T6 static on)
Circuit diagram Channel pair
connections
Comments
T0/
24V
T2/
24V
T4/
24V
T6/
24V
Signal evaluation of up to 2 independent
single-channel switches/sensors (N/O or N/C)
per channel pair. In this function mode, T0, T2,
T4 and T6 are at static 24 V DC.
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1/
FE
T3/
FE
T5/
FE
T7/
FE
Functional safety
– PLc, Cat.1/SIL1
with switch/sensor tried and tested in accordance with EN13849-2, TableD.3,
and with wiring protection of the customer application in accordance with EN13849-2,
TableD.4
Fig. 17 Function mode 1 – 1oo1
Function mode 2 – 1oo1 test
(T0, T2, T4, T6 static off)
Circuit diagram Channel pair
connections
Comments
T0 T2 T4 T6 Signal evaluation of up to 2 single-channel
switches/sensors (N/O or N/C) per channel
pair. In this function mode, T0, T2, T4 and T6
are not connected to voltage.
Function mode 2 can be used as a test mode
when you connect sensors for function
mode1.
A safety control that alternately uses the
function mode 1 and 2 can in this way generate
user-specific test signals and evaluate
whether a zero crossover has taken place.
Software-generated test signals only work
with the following manifold blocks:
– CPX-M-AB-4-M12X2-5POL-T
– CPX-AB-8-KL-4POL.
Safety requests cannot be evaluated by the
safety control unit during the test period.
Function mode2 can be alternatively used to
reset sensors with self-monitored electronic
outputs.
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1/
FE
T3/
FE
T5/
FE
T7/
FE
Functional safety
– PLc, Cat.1/SIL1
with switch/sensor tried and tested in accordance with EN13849-2, TableD.3,
and with wiring protection of the customer application in accordance with EN13849-2,
TableD.4
Fig. 18 Function mode 2 – 1oo1 test
Function mode 3 – 1oo1T (with clock signal monitoring)
Circuit diagrams Channel pair
connections
Comments
AT0 T2 T4 T6 Signal evaluation of up to 2 independent
single-channel switches/sensors per channel
pair with individually clocked sensor power
via T0, T2, T4, T6 and with common clock
signal via T1, T3, T5, T7.
This function mode is used to detect short
and cross circuits.
Example A
2 single-channel switches/sensors
(N/O or N/C).
Safety evaluation only with manifold blocks:
– CPX-M-AB-4-M12X2-5POL-T
– CPX-AB-8-KL-4POL.
Example B
2 single-channel safety sensors with test
input.
Safety-related evaluation only with manifold
block CPX-AB-8-KL-4POL.
8 safety sensors can be connected to this
manifold block.
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1 T3 T5 T7
B24V
T0 T2 T4 T6
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1 T3 T5 T7
Functional safety
– PLc, Cat.1/SIL1
with switch/sensor tried and tested in accordance with EN13849-2, TableD.3
–up to PLc, Cat.3/SIL2
with certified switch/sensor of suitable safety classification
and with wiring protection of customer application in accordance with EN13849-2, TableD.4,
and with testing of the safety application once a year
–up to PLe, Cat.3/SIL3
with certified sensor of an appropriate safety classification
and with wiring monitoring by the connected sensor (example B).
Fig. 19 Function mode 3 – 1oo1 T

Function mode 4 – 1oo1 D (antivalent)
Circuit diagrams Channel pair
connections
Comments
T0 T2 T4 T6 Signal evaluation of up to two independent
dual-channel switches/sensors (internally
antivalent, N/O or N/C) or up to four
operationally tested switches per channel pair.
The clock signals at E1, E3, E5 and E7 are wired
as a mirror image of E0, E2, E4, E6.
This function mode tests the switch function
and wiring of the sensors.
 Use only sensors with antivalent outputs in
which the one contact opens before the
other contact closes.
 Ensure that the N/O and/or N/C switches of
sensors are connected with the appropriate
clock signal connections for the channel pair
(èCircuit diagram).
 Note that before every actuation a zero
crossover is required (normally closed
contact of the N/C switch closed).
Safety evaluation only with the following
manifold blocks:
– CPX-M-AB-4-M12X2-5POL-T
– CPX-AB-8-KL-4POL.
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1 T3 T5 T7
T0 T2 T4 T6
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1 T3 T5 T7
Functional safety
– PLe, Cat.3/SIL3
with 2 independent switches/sensors tried and tested in accordance with EN13849-2,
TableD.3, the switches/sensors must be implemented as independent systems in the customer
application
–up to PLe, Cat.3/SIL3
with certified switches/sensors of an appropriate safety classification.
Fig. 20 Function mode 4 – 1oo1 D
Function mode 5 – 1oo2 (equivalent)
Circuit diagrams Channel pair
connections
Comments
AT0/
24V
T2/
24V
T4/
24V
T6/
24V
Signal evaluation of a sensor (typically OSSD),
which switches both signals of the channel
pair simultaneously.
Short-circuit and cross-circuit monitoring can
be implemented via the sensor.
Example A
A dual-channel switch/sensor (internally
equivalent) per channel pair with uniformly
unclocked sensor power.
In this function mode, T0, T2, T4 and T6 are at
static 24 V DC.
Example B
OSSD sensor
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1/
FE
T3/
FE
T5/
FE
T7/
FE
B24V 24V 24V 24V
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1 T3 T5 T7
FE connection of the
sensor via the M12 plug
connector fitting of the
module
Functional safety
–up to PLd, Cat.2/SIL2
with certified switch/sensor of an appropriate safety classification
and with automatic testing of the safety function by the machine within 24 h
–up to PLd, Cat.2/SIL3
with certified switch/sensor of an appropriate safety classification
and with wiring protection of the customer application in accordance with EN13849-2,
TableD.4,
and with automatic testing of the safety function by the machine within 24 h
–up to PLe, Cat.4/SIL3
with certified sensor (OSSD) of an appropriate safety classification
and with wiring monitoring by the connected sensor (example B).
Fig. 21 Function mode 5 – 1oo2
Note on function mode 5
Malfunction during use of OSSD sensors on the manifold block
CPX-M-AB-4-M12X2-5POL-T.
The connection of an FE contact to Pin5 on an M12 socket causes a short circuit.
This would result in a malfunctioning of signals T1, T3, T5 and T7.
The input module reports module error 02: “Short circuit 0 V at clock signal
output T1357”.
 Connect the FE contact of a sensor only to the M12 plug screw connection of
the module.
Function mode 6 – 1oo2T (equivalent, with clock signal monitoring)
Circuit diagram Channel pair
connections
Comments
T0 T2 T4 T6 Signal evaluation of a dual-channel
switch/sensor (internally equivalent) per
channel pair with individually clocked power
supply.
This function mode is used to detect short and
cross circuits.
This function mode is particularly suitable for
applications that expect fast reactions
(e.g.emergency stop, certified
switches/sensors).
Safety evaluation only with the following
manifold blocks:
– CPX-M-AB-4-M12X2-5POL-T
– CPX-AB-8-KL-4POL.
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1 T3 T5 T7
Functional safety
–up to PLe, Cat.3/SIL2
with certified switches/sensors of an appropriate safety classification
–up to PLe, Cat.4/SIL3
with certified switch/sensor of an appropriate safety classification
and with automatic testing of the safety function by the machine within 24 h
–up to PLe, Cat.4/SIL3
with certified switch/sensor of an appropriate safety classification
and with wiring protection of the customer application in accordance with EN13849-2,
TableD.4.
Fig. 22 Function mode 6 – 1oo2T
Function mode 7 – 1oo2D (two-hand control device EN574TypeIIIc)
Circuit diagram Channel pair
connections
Comments
T0 T2 T4 T6 Signal evaluation of up to 2 dependent
two-channel switches/sensors (internally
antivalent, N/O/N/C) per channel pair, with
time monitoring of signal change.
The clock signals at E1, E3, E5 and E7 are wired
as a mirror image of E0, E2, E4, E6.
– Pressing both pushbuttons within 500 ms
generates a logic 1 in the input image of the
channel pair.
– Note that a zero crossing is required before
every actuation (both N/C standby contacts
closed).
 Use only antivalent switches in which the
one contact opens before the other contact
closes.
 Ensure that the N/O and/or N/C switches of
sensors are connected with the appropriate
clock signal connections for the channel pair
(èCircuit diagram).
Safety evaluation only with the following
manifold blocks:
– CPX-M-AB-4-M12X2-5POL-T
– CPX-AB-8-KL-4POL.
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1 T3 T5 T7
Functional safety
– PLe, Cat.4/SIL3
with 2 switches/sensors, wiring and safety function in accordance with EN574 Type IIIC.
Fig. 23 Function mode 7 – 1oo2 D

Function mode 8 – 1oo2T (equivalent, with clock signal monitoring, robust)
Circuit diagram Channel pair
connections
Comments
T0 T2 T4 T6 Signal evaluation of mechanical contacts on
atwo-channel switch/sensor (internally
equivalent) or of 2 independent, tried and
tested switches.
This function mode is equivalent to function
mode 6, but is insensitive to bouncing contacts
due to extended evaluation time.
This function mode is thus not suitable for
applications that expect fast reactions
(e.g.light curtain).
 Note the extended reaction time.
 Use this function mode only with
anintended maximum request rate
of 1 per60 s.
Safety evaluation only with the following
manifold blocks:
– CPX-M-AB-4-M12X2-5POL-T
– CPX-AB-8-KL-4POL.
E1 E3 E5 E7
0V
E0 E2 E4 E6
T1 T3 T5 T7
Functional safety
–up to PLe, Cat.3/SIL2
with certified switch/sensor of an appropriate safety classification or
2 independent tested switches in accordance with EN13849-2, TableD.3
–up to PLe, Cat.4/SIL3
with certified switch/sensor of an appropriate safety classification or
2 independent tested switches in accordance with EN13849-2, TableD.3,
and with automatic testing of the safety function by the machine within 24h
–up to PLe, Cat.4/SIL3
with certified switch/sensor of an appropriate safety classification or
2 independent tested switches in accordance with EN13849-2, TableD.3,
and with wiring protection in accordance with EN13849-2, TableD.4.
Fig. 24 Function mode 8 – 1oo2T (robust)
Function mode 9 – 1ofN(one of N)
Circuit diagram Contacts Comments
0
1
2
3
T2/24V Evaluation of one of max. 8 signals with monitoring of signal
change over time. The input image is switched 100 ms after
actuation.
This function mode serves to evaluate a mode selector
switch or a rotary indexing table.
 Use only consecutive channel pairs for channel bundling.
 Activate this function mode for all channel pairs in use.
Variants: 1 of 2, 1 of 4, 1 of 6 or 1 of 8.
The circuit diagram shows the variant “1 of 4” as an
example. The directly consecutive channel pairs E2/E3 and
E4/E5 are used, which must both be set to function mode 9.
The power supply can be optionally switched from T2 or
24 V to one of the inputs E2, E3, E4, E5.
Required for this example: channel pairs E0/E1 and E6/E7
are not configured to function mode 9 èFig. 26.
E3
0V
E2
T3/FE
T4/24V
E5
0V
E4
T5/FE
Functional safety
– PLc, Cat.1/SIL2
with tested switches/sensors in accordance with EN13849-2, TableD.3
–up to PLe, Cat.3/SIL3
with certified switches/sensors of an appropriate safety classification.
Fig. 25 Function mode 9 – 1 of N
Multiple channel pairs in function mode 9
Note
Ensuring operational reliability.
When evaluating more than two signals in a circuit:
 Use directly consecutive channel pairs.
When configuring two independent “1 of N” circuits on one input module:
 Ensure that the channel pairs used for the different circuits are not directly
consecutive to one another.
The following table shows all permitted configurations for setting function mode 9
for several channel pairs.
Channel pair E0 E1 E2 E3 E4 E5 E6 E7
“1 of 4” circuits Mode 9 Mode 9
Mode 9 Mode 9
Mode 9 Mode 9
“1 of 4” and “1 of 2”
circuits
Mode 9 Mode 9 Mode 9
Mode 9 Mode 9 Mode 9
“1 of 6” circuits Mode 9 Mode 9 Mode 9
Mode 9 Mode 9 Mode 9
“1 of 8” circuits Mode 9 Mode 9 Mode 9 Mode 9
Two independent “1 of 2”
circuits
Mode 9 Mode 9
Mode 9 Mode 9
Mode 9 Mode 9
Fig. 26 Function mode 9 for multiple channel pairs for up to 2 circuits
 Set the remaining channel pairs as desired – but not to function mode 9.
Function mode 10 – coded identifier
8-way DIL switch DIL Value Input Comments
8Parity E7 Evaluation of a coded identifier by DIL
switch in manifold block CPX-AB-ID-P.
To use the coded identifier:
Switch all channel pairs to function
mode 10.
Setting coded identifier
1. Set the desired identifier
with switches 1 to 7.
Use only values 1 to 126.
2. If you have an odd number of switches
(1 to 7) set to ON: also set parity bit
(switch 8) to ON.
Input image
A 0 is always output in the input image
instead of the parity bit so the set
identifier in the safety control can always
be used directly.
764 E5
632 E3
516 E1
4 8 E6
3 4 E4
2 2 E2
1 1 E0
Functional safety
– PLe, Cat.3/SIL 3
with certified switch/sensor of an appropriate safety classification or independent tested
switches in accordance with EN 13849-2 Table D.3
and with protection of the application against simple manipulation.
Manifold block CPX-AB-ID-P meets these requirements for functional safety without any
supplementary measures.
Fig. 27 Function mode 10 – coded identifier
6 Service, repair, disposal
The input module includes no parts requiring service and no parts subject to wear
and tear.
Note
Repairs are not allowed. Repairs will result in a lapse in conformity of the input
module. A professional replacement of the electronics module is permissible.
Note
Incorrect behaviour is possible.
 Always replace the input module if there is an internal fault.
 Send the unmodified defective input module, including a description of the
error and the application, back to Festo for analysis.
The material used in the packaging has been specifically chosen for its
recyclability.
For final disposal of the input module, please contact a certified waste disposal
business for electronic (WEE) scrap.

7 Technical data
General technical data of the CPX terminal èCPX system description
P.BE-CPX-SYS
Safety characteristics Function mode
1 2 3 4 5 6 7 8 9 10
Safety classification CPX-F8DE-P
– in accordance with EN ISO 13849-1 PL d, Cat.21) To PL e, Cat. 4
– in accordance with EN 61508 SIL 21) Up to SIL 3
– in accordance with EN 62061 SIL CL 21) Up to SIL CL 3
Worst Case Delay Time
(Max. internal reaction
time to input signal)
TWCDT [ms] 15 15 60 120 15 60 120 580 15 15
Average Diagnostic
Coverage
(Average diagnostic
coverage)
DCAVG [%] 802) 99
Safe Failure Fraction
(safe failure fraction)
SFF [%] 843) 99
Minimum period of request Internal reaction time
PROFIsafe Watchdog Time [ms] F_WD_TIME
Max. reaction time to input
change
[ms] F_WD_TIME +TWCDT
Device Acknowledge
Time
TDAT [ms] 20
(Internal PROFIsafe processing time)
Mean Time To
Dangerous Failure
MTTFd[years] 2500
(Mean time to dangerous failure)
Probability of Dangerous
Failure per Hour
PFHD1.0 x 10-9
(Probability of a dangerous failure per
hour)
Hardware Fault
Tolerance
HFT 1
(Hardware fault tolerance)
Classification in accordance with
EN61508-2:2010-05
Type B
Beta factor for failures
resulting from common
cause CCF
(common cause failure)
ß[%] 2
Max. useful life [years] 20
Safety protocol Profile for Safety Technology on PROFIBUSDP and
PROFINETIO; Version2.4, March2007
Type test
èwww.festo.com/sp
The functional safety engineering of the product has
been certified by an independent testing body,
seeEC type test certificate.
CE marking (èDeclaration of conformity)
èwww.festo.com/sp
in accordance with EU Machinery
Directive 2006/42/EC
according to EU-EMC directive 2004/108/EC
Certificate issuing authority 01/205/5444.00/15
1) Characteristic value if the application is tested within 24 hours: to PLe Cat. 3, SIL3, SILCL3
2) Characteristic value if the application is tested within 24 h: DCAVG = 94%
3) Characteristic value if the application is tested within 24 h: SFF = 95%
Fig. 28 Safety characteristics
Recommended sensors Function mode
1234 567 8 910
Sensors with mechanical switch contacts ––² ® –® ® ® ® ®
Sensors with self-monitored electronic
outputs
²²– – ®–––® ®
Electronic three-wire sensors with
aready-state delay of 23 ms
or
Electronic two-wire sensors with
aready-state delay of 2 ms
––²– – ²–²– –
Additionally:
– with reverse polarity protection at the
positive supply port
or
– without free-wheeling diode at the
sensor output.
–––®– – – – – –
®Recommended function mode
²Can be used with low safety requirements
Fig. 29 Recommended sensors
Electrical characteristic values
Nominal operating voltage DC [VDC] 24
Residual ripple (tip to tip)
in operating voltage range UEL/SEN
[VSS] 2
Permitted voltage tolerance [%] –15 ... +20
Voltage drop bypass time for the internal electronics [ms] 10
Intrinsic current consumption at nominal operating voltage [mA] Typ. 35
Undervoltage monitoring UEL/SEN [V] U 19.5 for t 250ms
Overvoltage monitoring UEL/SEN [V] U 29.5 for t 250ms
Potential reference of the input channels UEL/SEN
Electrical isolation between the channels No
Input characteristics
in accordance with IEC61131-2 for digital inputs
Type 2
Max. accepted test pulse duration at the input [ms] 0.7
Max. load current per clock line T0, T2, T4, T6 [A] 0.7
Max. residual current at T1, T3, T5, T7 [A] 0.2
Max. output current at 24 V terminals [A] 2
Max. residual current per input module [A] 3
Cable lengths to sensor
– Cable type LiFY11Y-OB, unshielded, 3x0.14mm² [m] 200
– Cable type LiF9Y11Y, unshielded, 4x0.10 mm² [m] 200
– Cable type LiYCY, shielded, 4x0.14mm² [m] 200
Fig. 30 Electrical characteristic values
Module characteristic values Function mode
01234 567 8 910
Module code 28d (1Ch)
Sub-module code 1d (01h)
Number of inputs 8
Switching logic inputs PNP (positive switching)
Compatible with fast start-up (FSU) Yes
Time for switch-on phase until
input module ready (start-up)
[s] 2
Max. tolerance time until
diagnostic message of channel
fault
[s] –––0.5 10 0.5 0.5 10 2 2 2
Fig. 31 Module characteristic values
Ambient characteristics
Ambient operating temperature [°C] –5 ... +50
Ambient temperature during storage and
transportation
[°C] –20 ... +70
Relative humidity (non-condensing) [%] 5 ... 90
Contamination level in accordance with
DINEN60664-1:2007
2
Degree of protection in accordance with IEC60529 Dependent on the manifold block1)
Electromagnetic compatibility (EMC)
– Immunity to interference and emitted interference
(Declaration of Conformity
èwww.festo.com/sp)
UL certification cULus – Recognized (OL)
1) èDescription P.BE-CPX-F8DE-P-..., "Technical data of the manifold blocks"
Fig. 32 Ambient characteristics
No. Error messages Function mode
012345678910
02 Channel error short circuit 24 V –––üü–üüü– –
02 Module error short circuit 0 V
clock output T1357
üüüüüüüüüüü
03 Channel error wire break ––––ü––ü–––
05 Module error undervoltage üüüüüüüüüüü
29 Channel error configuration
e.g.invalid function mode
–––––––––––
55 Channel error process value –––––üü–üüü
61 Module error overvoltage üüüüüüüüüüü
65 Module error F_DEST_ADD
different
üüüüüüüüüüü
66 Module error communication üüüüüüüüüüü
67 Module error communication
timeout
üüüüüüüüüüü
68 Channel error cross circuit –––üü–üüü– –
69 Module error parameter üüüüüüüüüüü
75 Module error overtemperature üüüüüüüüüüü
80 Channel error channel function üüüüüüüüüüü
145 Module error in self-test üüüüüüüüüüü
Fig. 33 Error messages