Festo CPX-FVDA-P2 User manual

8022607
CPX-FVDA-P2
Output module
8022607
2018-10b
[8093495]
Description

Translation of the original instructions
PI PROFIBUS PROFINET®, PROFIsafe® are registered trademarks of the respective trademark owners in
certain countries.
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3Festo — CPX-FVDA-P2 — 2018-10b
1 General safety instructions......................................................................................... 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...................................................................................................... 10
1.6 Attainable safety level.................................................................................................. 11
1.7 Failures due to a common cause (Common Cause Failure – CCF)...................................11
1.8 Requirements for product use...................................................................................... 12
1.8.1 Technical prerequisites...........................................................................................12
1.8.2 Training of skilled personnel...................................................................................12
1.9 Transport and storage conditions................................................................................. 13
1.10 Service...........................................................................................................................13
1.11 Range of application and certifications......................................................................... 13
1.12 Product identification................................................................................................... 13
1.12.1 Revision version......................................................................................................14
1.12.2 Manufacturing period............................................................................................. 15
1.13 Information regarding this description......................................................................... 15
1.14 Product-specific terms and abbreviations..................................................................... 16
2 System overview CPX-FVDA-P2................................................................................... 20
2.1 CPX terminal with output module CPX-FVDA-P2........................................................... 20
2.1.1 Design of the output module CPX-FVDA-P2.............................................................24
2.1.1.1 Design in a CPX terminal......................................................................................... 24
2.1.1.2 Design in a valve terminal VTSA-F-CB......................................................................25
2.1.2 Components........................................................................................................... 26
2.1.3 Supported product versions................................................................................... 29
2.1.4 Required bus topology (control chain)....................................................................32
2.2 PROFIsafe..................................................................................................................... 32
2.2.1 PROFIsafe safety profile..........................................................................................32
2.2.2 Process image.........................................................................................................33
2.2.3 Bit pattern of the output and input data (F-user data)............................................ 34
2.3 Mode of operation of the output module...................................................................... 37
2.3.1 Possible applications..............................................................................................38
2.3.2 Application examples..............................................................................................41
2.4 Actuator requirements (CH0 ... CH2)............................................................................. 54
2.4.1 Electrical requirements........................................................................................... 54
2.4.2 Safety-related requirements................................................................................... 56
3 Installation.................................................................................................................. 56
Table of contents

3.1 General information about installation.......................................................................... 56
3.1.1 Module-related rules for configuration.................................................................. 57
3.2 Connecting the cables and plugs to the manifold block.................................................57
3.3 Electrical connection and display elements................................................................... 59
3.3.1 Pin allocation with M12 manifold block................................................................. 60
3.3.2 Pin allocation with TS manifold block.................................................................... 61
3.3.3 Pin allocation with pneumatic interface VABA-S6-1-X...-F2-CB................................62
3.4 Setting the PROFIsafe address...................................................................................... 62
3.5 Disassembling and assembling the electronics module.................................................64
3.5.1 Disassembling the electronics module................................................................... 64
3.5.2 Assembling the electronics module....................................................................... 64
4 Commissioning.............................................................................................................66
4.1 General information.......................................................................................................66
4.1.1 Device master file (GSD/GSDML)........................................................................... 66
4.2 Preparing for commissioning.........................................................................................67
4.3 Commissioning steps.................................................................................................... 67
4.4 Setting the PROFIsafe parameters.................................................................................68
4.5 Setting the CPX module parameters.............................................................................. 69
4.5.1 CPX module parameters for CPX-FVDA-P2 in detail................................................ 71
4.5.2 Parameterisation and signal display with the operator unit CPX-MMI-1..................74
4.6 Configuration with Siemens STEP 7 (example).............................................................. 76
4.6.1 Addressing example............................................................................................... 79
5 Operation......................................................................................................................80
5.1 LED status indication.....................................................................................................80
5.1.1 Behaviour during the switch-on phase (start-up phase)......................................... 81
5.1.2 Normal operating status........................................................................................ 81
6 Diagnostics and error handling....................................................................................81
6.1 Overview of diagnostics options....................................................................................81
6.2 Possible error messages of the output module CPX-FVDA-P2........................................82
6.3 Diagnostics via LEDs......................................................................................................85
6.3.1 Error handling and parameterisation..................................................................... 88
6.3.2 Behaviour in case of error...................................................................................... 90
6.4 Diagnostics via the CPX bus node..................................................................................91
6.4.1 Diagnostics with the operator unit CPX-MMI.......................................................... 91
7 Service, repair, disposal...............................................................................................91
7.1 Service...........................................................................................................................91
7.2 Repair............................................................................................................................92
7.3 Disposal........................................................................................................................ 92
8 Technical appendix...................................................................................................... 92
8.1 Technical data of the output module CPX-FVDA-P2....................................................... 92
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8.2 Technical data of the manifold blocks.......................................................................... 98
8.3 Technical data of the interlinking block........................................................................ 99
8.4 Technical data of the pneumatic interface.................................................................... 99
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1 General safety instructions
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. This information is identified by a signal word (Warning, Caution, etc.), printed on a
shaded background and marked with a pictogram. A distinction is made between the following danger
warnings:
WARNING!
Dangers which can lead to death or serious injuries.
CAUTION!
Dangers which can lead to slight 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.
General safety instructions
Festo — CPX-FVDA-P2 — 2018-10b6

1.2 General safety instructions
WARNING!
Non-observance of safety regulations can result in death, serious injuries or major material damage.
• The safety instructions must be observed.
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 pro-
tect the modules.
NOTICE!
To ensure compliance with the intended use:
• Each output channel that is in use must be switched at least once a week.
• If test pulses are switched off:
Each output that is in use must be switched at least once a day.
NOTICE!
To ensure compliance with the safety level:
• Each output channel that is in use must be switched on for more than 1minute at least once every
8operating hours.
The operating time begins when the output module is first switched on.
NOTICE!
• Use a maximum of 2output channels in a common safety pilot circuit.
Observe the regulations for providing voltage (protective extra-low voltage, PELV) to CPX terminals in
the system description CPX-SYS-… èwww.festo.com/sp
1.3 Intended use
The output module CPX-FVDA-P2 is used correctly as a shut-off module for the safe shutdown of con-
nected consumers (safety function) if the following condition is met:
– The connected consumers go into a safe state when the safety shutdown takes place.
Product versions
The output module CPX-FVDA-P2 is available in three versions è Tab. 4 Permissible components:
– Version 1
in combination with certain manifold and interlinking blocks of the CPX terminal
– Version 2
as part of the pneumatic interface VABA-S6-1-X...-F1-CB of the valve terminal VTSA-F-CB
– Version 3
as part of the pneumatic interface VABA-S6-1-X...-F2-CB of the valve terminal VTSA-F-CB
General safety instructions
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Safety function
The safety function is achieved through dual-channel, P- and M-side disconnection of the load voltage
supply for UVAL valves:
– Version1
– Disconnection of the load voltage supply for UVAL valves of the CPX terminal: output channel
CH0 of the module.
Output channel CH0 is used to supply valve terminal pneumatic modules in the CPX terminal
fitted on the right-hand side.
– Disconnection of the two outputs provided through the connection technology of the module:
output channel CH1 and CH2 of the module, also supplied via the load voltage supply for UVAL
valves.
In addition, the unswitched load voltage supply UVAL is made available through the connection
technology of the module as operating voltage for the external components (24VDC auxiliary
supply).
– Version2
– Disconnection of the three internal safe voltage zones: CH0, CH1, CH2.
– Version 3
– Disconnection of the two internal safe voltage zones: CH0, CH1.
– Disconnection of the safe output provided through the connection technology of the pneu-
matic interface: CH2.
The voltage zones can be disconnected independently of each other in an electrically safe manner.
The output channels of the output module CPX-FVDA-P2 each form a safety circuit with their connec-
ted consumers.
Information about the power supply for the CPX terminal èSystem description CPX-SYS-...
Range of application
The output module CPX-FVDA-P2 is a product with safety-relevant functions and is intended for install-
ation in machines or automation systems and for use as follows:
– In excellent technical condition
– In its original condition, without unauthorised modifications
– Only in the configurations named here (è 2.3.2 Application examples)
– Within the limits of the product defined by the technical data
è 8.1 Technical data of the output module CPX-FVDA-P2
– In an industrial environment
NOTICE!
Note that the safety limits of the output module are also its physical limits.
1.4 Rules for product configuration
– The output module CPX-FVDA-P2 may only be operated in CPX terminals from Festo of the variant
CPX-M-... or in pneumatic interfaces for the valve terminal VTSA-F-CB-…
– Comply with all technical operating limits (è 8 Technical appendix).
Otherwise, malfunctions can occur.
General safety instructions
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– Operation of the CPX-FVDA-P2 is permissible only in combination with the following PROFIsafe-
compatible CPX bus nodes èBus node rating plate:
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
1) èDescription CPX-FB13...
2) èDescription CPX-PNIO...
Tab. 1 Permissible PROFIsafe-compatible CPX bus nodes
– Operation of the CPX-FVDA-P2 within valve terminals is only permissible with the following valve
types:
Valve terminal Type Valve types
MPA-S-FB-VI 32 MPA1, MPA2 on VMPA…-FB-EMG-…1)
MPA-F-FB-VI 33 MPAF1, MPAF2 on VMPA…-FB-EMG-…1)
VTSA-FB-VI 44 All up to width of 52mm1)
VTSA-F-FB-VI 45 All up to width of 52mm1)
VTSA-F-CB-VI 46 All1)
1) Malfunctions may occur if the resultant current is exceeded.
Tab. 2 Permissible valve types
– Operation of shut-off groups within valve terminals is only allowed in conjunction with permissible
pneumatics èDescription of the respective valveterminal.
– Operation of shut-off groups in CPX terminals in the RemoteI/O operating mode is only allowed
with the following approved output modules:
Output module
CPX-4DA1)
CPX-8DA1)
CPX-8DA-H1)
CPX-8DE-8DA1)
1) Malfunctions may occur if the resultant current is exceeded.
Tab. 3 Permissible output modules
General safety instructions
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– Only the following components are permitted when assembling the CPX-FVDA-P2:
Version Component Type
Interlinking block CPX-M-GE-EV-FVO
CPX-M-AB-4-M12X2-5POL
1 CPX-FVDA-P2 in combination
with certain manifold and
interlinking blocks of the
CPX terminal
Manifold block
CPX-AB-8-KL-4POL
2 Pneumatic interface VABA-S6-1-X...-F1-CB
3
CPX-FVDA-P21) as part of the
pneumatic interface of the
valve terminal VTSA‑F‑CB Pneumatic interface VABA-S6-1-X...-F2-CB
1) RevisionR04 (or a higher revision) of the output module required èRating plate of the electronics module CPX‑FVDA‑P2
Tab. 4 Permissible components
Further information about the supported product versions can be found in section
è 2.1.3 Supported product versions and in the description of the valve terminal VTSA-F-CB.
Detailed information about the product, the supported product versions and required software ver-
sions as well as the permissible components of the CPX terminal can be found in the system descrip-
tion CPX-SYS-… èwww.festo.com/pk.
Information about permissible configurations of the CPX terminal in combination with the output mod-
ule can be found in the catalogue èwww.festo.com/catalogue.
1.5 Foreseeable misuse
The following examples of foreseeable misuse 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
– Unauthorised modifications
– Use in combination with consumers where switching off can result in hazardous movements or
conditions
NOTICE!
The use of manifold blocks, interlinking blocks and pneumatic interfaces that are not specified is not
permissible.
General safety instructions
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NOTICE!
In the following cases, the use of the output module CPX-FVDA-P2 for formation of safety circuits is not
permissible:
• In a CPX terminal equipped with CPX-FEC or CPX-CEC
• In a CPX terminal with shut-off groups containing output modules other than those permitted
• In a CPX terminal of variant P
• In a CPX terminal with a connected valve terminal which is equipped with valve types other than
the following: VTSA, MPA-S, MPA-F è Tab. 2 Permissible valve types
• In a CPX terminal with a connected valve terminal where a proportional-pressure regulator VPPM
is located in switching groups with a safety shutdown function
• In impermissible switching configurations è 2.3.2 Application examples
NOTICE!
The output module does not contain any wearing parts. Repairs are not allowed on the output module
CPX-FVDA-P2. This invalidates the certification of the output module. Professional replacement of the
electronics module by the user is permissible.
NOTICE!
In the event of damage caused by unauthorised manipulation or any form other than the intended use,
the warranty is invalidated, and the manufacturer is not liable for damages.
1.6 Attainable safety level
With the CPX-FVDA-P2, safety functions can be implemented up to:
– Safety integrity level SIL3 in accordance with IEC61508
– Performance Level e, Cat. 3 in accordance with ENISO13849-1
– SIL claim limit SILCL3 in accordance with EN62061.
The attainable safety level of the overall safety device depends on the other components used to
implement the safety function.
To maintain the safety level:
– Test the functionality of the safety device at adequate intervals.
1.7 Failures due to a common cause (Common Cause Failure – CCF)
Common cause failures cause the loss of the safety function, since both channels (P and M) in a dual-
channel system fail simultaneously.
The following measures ensure that common cause failures are avoided:
– Comply with operating voltage limits
– Comply with temperature range
è Tab. 49 Further characteristic values
è Fig.40
– Use a maximum of 2output channels in a common safety pilot circuit
Additional measures for avoidance of common cause failures may result from the application.
General safety instructions
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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.
– Keep this description somewhere safe throughout the entire product lifecycle.
– Make sure that the specifications contained in the documentation are always complied with. Also
comply with the documentation for the other components and modules (e.g. bus nodes, pneumat-
ics).
– Take into consideration the legal regulations applicable for the location as well as:
– Regulations 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 pro-
tection:
– Screw the manifold block on tight
– Assemble cable entries and seals in a professionally correct manner
– Seal unused connections with cover caps
– If the system had to be shut down for safety reasons such as an emergency stop, make sure the
safety controller monitors/controls all system restarts as intended.
1.8.1 Technical prerequisites
General conditions for the correct and safe use of the product, which must be observed at all times:
– Comply with the technical operating limits è 8 Technical appendix.
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 tem-
peratures, electrical data and torques.
1.8.2 Training of skilled personnel
The device may only be commissioned by trained, qualified control and automation technology per-
sonnel, who are familiar with:
– Installation and operation of control systems
– Applicable regulations for operating safety-related systems
– Applicable regulations for accident prevention and occupational safety
– The documentation for the product
NOTICE!
Work on safety-related systems may only be carried out by qualified personnel trained in safety engin-
eering.
General safety instructions
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1.9 Transport and storage conditions
– Protect the product during transport and storage from excessive stress factors, 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
Please consult your local Festo service if you have any technical problems.
1.11 Range of application and certifications
This product is a safety device as defined in the EU Machinery Directive and carries the CE marking.
Standards and test values, which the product must comply with and fulfil, can be found in the section
“Technical data”. The product-relevant EC directives can be found in the declaration of conformity.
Certificates and the declaration of conformity for this product can be found at www.festo.com.
– Please note that compliance with the named standards is limited to the output module
CPX-FVDA-P2. From the perspective of the output module, all disconnectable parts of a CPX ter-
minal and/or valve terminal are treated as an external load.
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.
NOTICE!
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 spe-
cial documentation.
The relevant technical data in that documentation also apply with priority if they do not influence
the safety characteristic values in an impermissible manner.
• The technical data in this documentation may show values deviating from this.
1.12 Product identification
The module identifier and product rating plate serve to identify the product. The module identifier can
be seen through the transparent covering on the manifold block.
General safety instructions
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Module identifier Meaning
1
22
– Module identifier 1:
FVDOP2 (F=Safety; V=Valves; D=Digital;
O=Outputs; P=PROFIsafe; 2=Variant)
– Yellow background 2 to indicate the safety
function
Tab. 5 Module identifier of the output module CPX-FVDA-P2
The rating plate of the electronics module CPX-FVDA-P2 shows the following information:
Rating plate (example) Meaning
Rating plate
– Order reference 1
– Part number 21)
– Revision code (here R01) 3
– Serial number shown as a data matrix code
42)
– Manufacturer and manufacturer’s address 5
– 14-character serial number 62)
– Manufacturing period (encoded,
hereA5=May2010) 7
è Tab. 7 Year of manufacture (20-year cycle)
è Tab. 8 Manufacturing month
1) Part number of the electronics module CPX-FVDA-P2
2) Makes it possible to trace the product.
Tab. 6 Rating plate of the electronics module CPX-FVDA-P2
Further information can be found in the CPX-SYS-… system description. èwww.festo.com/pk.
1.12.1 Revision version
– Determine the revision of a CPX module:
– With the operator unit CPX-MMI-1 (è [Module data] [Revision])
– With the appropriate configuration software (è Module data, revision code)
– From the rating plate of the respective module (in disassembled state,
è Tab. 6 Rating plate of the electronics module CPX-FVDA-P2)
– Before replacing a module, check whether the revision code of the bus node corresponds to the
requirements of the module (è Tab. 27 Required versions).
– Only use an electronics module with revision R04 (or higher) for the pneumatic interface VABA-
S6-1-X...-F1/F2-CB è Tab. 4 Permissible components.
General safety instructions
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1.12.2 Manufacturing period
The manufacturing period is encoded on the rating plate in the form of a two-character ID code
(è Tab. 6 Rating plate of the electronics module CPX-FVDA-P2). The letter specifies the manufacturing
year and the character after it (number or letter) indicates the manufacturing month.
Manufacturing year
X = 2009 A = 2010 B = 2011 C = 2012 D = 2013 E = 2014
F = 2015 H = 2016 J = 2017 K = 2018 L = 2019 M = 2020
Tab. 7 Year of manufacture (20-year cycle)
Manufacturing month
1 January 2 February
3 March 4 April
5 May 6 June
7 July 8 August
9 September O October
N November D December
Tab. 8 Manufacturing month
1.13 Information regarding this description
This description contains general basic information about operating, assembling and installing the
output module CPX-FVDA-P2 in combination with the CPX terminal and refers exclusively to the follow-
ing revisions of the output module:
Type Part number Revision1)
CPX-FVDA-P2 1971599 R0xè Tab. 6 Rating plate of the
electronics module CPX-FVDA-
P2
1) Here, x stands for a single digit from 1 to 9
Tab. 9 Product to which this description applies
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 ter-
minal with the bus node you are using can be found in the corresponding description for your bus
node. Information about additional CPX modules can be found in the description for the respective
module.
Information about the pneumatics can be found in the corresponding pneumatics descriptions.
General safety instructions
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An overview of the user documentation structure for the CPX terminal can be found in the CPX-SYS-…
system description.
Conventions
The special parameters of the module appear on the operator unit CPX-MMI-1 in English. The data and
parameters in the text displayed in English on the operator unit are shown in square brackets in this
description, e.g.[Debounce time]. This is followed by thetranslation:
Debounce time [Debounce time].
1.14 Product-specific terms and abbreviations
Term/abbreviation Meaning
Switch-off group Group of loads that can be controlled independently of each other and
switched off together for safety reasons with the same output channel.
A switch-off group is also known as a load group. In valve terminals, a
switch-off group forms a separate, safe voltage zone.
Output channel An independently switchable output that is switched via two redundant
switching elements in the outward and return path of the circuit. CH0, CH1
and CH2 are independent output channels that are switched internally via a
2-channel principle.
CRC signature Test value in the PROFIsafe security telegram to check the integrity of tele-
gram data (cyclic redundancy check).
Depassivation èReintegration or passivation (the opposite)
Wire break detection Function that detects and reports connection errors such as loads without
contact and wire break. For CPX-FVDA-P2, this function can be activated or
deactivated through parameterisation.
If using the output module in the pneumatic interface – without external
voltage zones – deactivate the wire break detection function.
I/O image èProcess image
Replacement value Preset safe value that replaces the real process value or the programmed
value in the event of a malfunction or when booting safety-related systems.
For CPX-FVDA-P2 (digital outputs), this is the output value 0.
F-Device Collective term for safety-related devices
F-Host Safety controller for controlling safety-related devices
F-System Safety-related system that restores a safe state in the event of dangerous
system and device errors.
GSDML/GSD Device master data file in XML format
iParameters Technology-specific individual parameters for a particular F-Device
General safety instructions
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Term/abbreviation Meaning
Channel èOutput channel
Channel-wise
passivation
A type of passivation during which only the defective output channel is
passivated. The module remains integrated. Acknowledgment takes place
in CPX-FVDA-P2 via the process image
è 2.2.3 Bit pattern of the output and input data (F-user data).
Short circuit Connection of switching points with normally different electrical potentials,
e.g. of 0V and 24V of one voltage source.
M-switch
(low-side switch)
Switch in the 0V current path of an output channel. Further information
(èP-switch)
Passivation Safety function during which the output module CPX-FVDA-P2 switches off
all output channels or only the defective output channels (channel-wise
passivation), depending on the respective error. Instead of the pro-
grammed values, the so-called replacement values(0) are then effective.
Module passivation takes place automatically in case of,e.g.:
– Safety-related communication errors (PROFIsafe)
– Self-test errors
– Channel errors, but only if the “channel-wise passivation” function is
switched off (èChannel-wise passivation)
Once the module has been passivated, regular reintegration is required
(standard PROFIsafe acknowledgment process).
If channel-wise passivation is switched on, in case of a channel error only
the affected output channel is passivated. In order to depassivate the out-
put channel, an acknowledgment signal is required via the process image
è 2.2.3 Bit pattern of the output and input data (F-user data).
Performance level
(PL ..., cat. ...)
Discrete level that specifies the capability of a controller’s safety-related
parts to perform a safety function under defined conditions. Categories and
5 performance levels (PLa to PLe) are defined in DIN EN ISO 13849-1.
– Category (cat.) is the classification of a safety-related part of a control-
ler with respect to its resistance to errors and its subsequent beha-
viour in the error condition, which is achieved by the structural
arrangement of the parts, error detection and by their reliability.
– PLa is the lowest and PLe the highest level.
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/pn, www.profibus.de).
General safety instructions
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Term/abbreviation Meaning
PROFIsafe Safety-related bus profile for PROFIBUS and PROFINET that, in conjunction
with PROFIsafe-compliant devices (F-Host and F-Device) facilitates 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. Due to the consecutive numbering, the recipient can
check whether they have received all the messages in the right order.
For this purpose, the F-Host and the F-Device are equipped with their own
state machines, which are synchronised using a control and status byte.
Correct synchronisation is monitored by including counter values in the
CRC signature calculation.
PROFIsafe address In order to identify the addressee of a message, each PROFIsafe-enabled
device or module has its own unique PROFIsafe address. The PROFIsafe
address is specified in the configuration program and set via the DIL switch
on the PROFIsafe-enabled device or module. Configuration errors are auto-
matically 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 a controller's 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.
P-switch (high-side
switch)
Switch in the 24V current path of an output channel.
Each output channel has a 24V and a 0V current path between which the
load is switched. With the CPX-FVDA-P2, these current paths are switched
together and at the same time, although independently of each other.
The P-switch switches the 24V current path and the M-switch switches the
0V current path of the output channel. Both switches (P-switch and M-
switch) must be closed in order for voltage to be applied to the load.
For the CPX-FVDA-P2, the P-switch and M-switch of an output channel are
controlled by different micro controllers for safety reasons.
General safety instructions
18 Festo — CPX-FVDA-P2 — 2018-10b

Term/abbreviation Meaning
Cross circuit Accidental bypasses in switches, e.g. between 0V andFE. These can be
triggered, forexample, by pinched cables and can cause impermissible
currents in circuits. If, for example, 0V and FE are connected to each other
in the system power supply, a cross circuit between the 0V current path
and FE downstream of the M-switch results in the switch being bypassed.
The switch is rendered ineffective. In a similar way, a cross circuit can also
result in the P-switch being bypassed.
Cross-circuit monitor-
ing
Function that detects possible cross currents in the device’s own circuits
and switches the device or the output channel into a safe state. This pre-
vents accidental switching of the load due to impermissible cross currents.
Acknowledgment Signal or procedure for depassivation. By acknowledging, the user con-
firms that the module can be reintegrated, or the output channel can be
depassivated without any risk.
If the complete module has been passivated, acknowledgment is carried
out via regular reintegration (standard PROFIsafe process).
If an output channel has been passivated (channel-wise passivation),
acknowledgment takes place via an acknowledgement signal from the pro-
cess image è 2.2.3 Bit pattern of the output and input data (F-user data).
Black channel The transmission channels of PROFIBUS and PROFINETIO are not influ-
enced by PROFIsafe. They do not need to be considered in more detail with
regard to PROFIsafe and are therefore called black channels.
Safe state State in which the system is safe.
Safety-related commu-
nication
Exchange of safety-related messages between the F-Host and F-Device
(e.g.via PROFIsafe)
Safety integrity Effectiveness of safety functions in a safety-related system under require-
ment-based conditions.
Safety integrity level Safety integrity level for safety-related systems in acc. with IEC 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 circuit Output module CPX-FVDA-P2 with all the connected consumers. A safety
circuit is formed when the load to be operated safely is supplied from an
output (CH0, CH1, CH2) of the CPX-FVDA-P2. A switched-on (supplied) load
can either be safely switched off upon request (via PROFIsafe) or the mod-
ule automatically switches off the load safely if it detects a safety-related
error.
Safety pilot circuit Safety circuit including safety-related control by the controller.
Safety program Safety-related user program in the F-Host
General safety instructions
19Festo — CPX-FVDA-P2 — 2018-10b

Term/abbreviation Meaning
Safety controller A safety controller is generally a programmable logic controller with specif-
ic design elements for processing safe input information into safe output
information. It is used in safety-critical systems in order to guarantee the
required safety integrity level.
SIL èSafety integrity level
SIL CL Claim limit for subsystems of a safety-related electrical control system.
Test pulse Fast switching impulse for monitoring switching capability and detecting
cross circuits (èForced switch on/off).
Reintegration Switching from replacement values to programmed values or process val-
ues (depassivation) èPassivation.
Reintegration is a standard PROFIsafe process to depassivate a passivated
module (èPROFIsafe standard).
Forced switch on/off Functional test procedure to determine the switching capability of a device.
The P-switch and M-switch of the output module CPX-FVDA-P2 are checked
cyclically for effective functionality.
Tab. 10 Product-specific terms and abbreviations
2 System overview CPX-FVDA-P2
2.1 CPX terminal with output module CPX-FVDA-P2
Only the variant CPX-M-... of the CPX terminal or the valve terminal VTSA-F-CB can be equipped with
the output module CPX-FVDA-P2 è 1.4 Rules for product configuration.
Product versions
The module has 3 digital output channels (CH0 … CH2), which enable the load voltage supplies for
valves UVAL to be switched off safely in two channels on the P-side and M-side:
– Version1
– Switches off the load voltage supply for valves UVAL of the CPX terminal: output channel CH0
of the module.
The valve terminal pneumatics modules of the CPX terminal fitted on the right-hand side are
supplied through output channel CH0.
– Switches off the two outputs provided through the connection technology of the module: out-
put channel CH1 and CH2 of the module, also supplied via the load voltage supply for valves
UVAL.
In addition, the unswitched load voltage supply UVAL is made available through the connection
technology of the module as operating voltage for the external components (24VDC auxiliary
supply).
– Version2
– Switches off the three internal safe voltage zones: CH0, CH1, CH2.
System overview CPX-FVDA-P2
20 Festo — CPX-FVDA-P2 — 2018-10b