Festo CPX-E Series Operating and installation instructions

System CPX-E
Bus module CPX-E-PB
Description
Protocol
PROFIBUS DP
Function
Parameterisation
8071123
2017-07
[8071125]

Bus module CPX-E-PB
2Festo – CPX-E-PB-EN – 2017-07 –
Original instructions
CPX-E-PB-EN
PI PROFIBUS PROFINET®is a registered trademark of its respective trademark holder in certain countries.
Symbols used:
Note
Material damage or loss of function
Recommendations, tips, references to other documentation

Bus module CPX-E-PB
Festo – CPX-E-PB-EN – 2017-07 – English 3
Table of Contents
1 About this document 4.....................................................................
1.1 Further applicable documents 4..............................................................
1.2 Target group 4............................................................................
1.3 Product version 4.........................................................................
1.4 Product labelling 5........................................................................
1.5 Specified standards 5......................................................................
2 Function 6...............................................................................
2.1 General remarks 6.........................................................................
2.1.1 Product design 6...................................................................
2.1.2 Display components 6...............................................................
2.1.3 Control elements 7..................................................................
2.1.4 Connecting components 7............................................................
2.1.5 Device description file 8.............................................................
2.1.6 Control commands 8................................................................
2.1.7 Identification & Maintenance (I&M) 8...................................................
2.2 Address assignment 9......................................................................
2.3 Addressing 9.............................................................................
2.3.1 Basic rules for addressing 9..........................................................
2.3.2 Addressing example 9...............................................................
2.4 Diagnostics options 10......................................................................
2.4.1 LED indicators 11....................................................................
2.4.2 Status bits 11.......................................................................
2.4.3 I/O diagnostic interface 11............................................................
2.5 Diagnosis via PROFIBUS DP 12...............................................................
2.5.1 Diagnostic steps 12..................................................................
2.5.2 Overview of diagnostic bytes 12........................................................
2.5.3 Standard diagnostic information 14.....................................................
2.5.4 Identifier-related diagnosis 15.........................................................
2.5.5 Channel-related diagnosis 15..........................................................
3 Parameterisation 17........................................................................
3.1 Access to system CPX-E via DPV1 17...........................................................
3.1.1 Data records 17.....................................................................
3.1.2 Examples for access to data records through DPV1 19......................................
3.2 Operation with the general DP master 20.......................................................
3.2.1 Implemented functions and service access points 20.......................................
3.2.2 Bus parameters and reaction times 20...................................................
3.2.3 Transmission times on PROFIBUS DP 20.................................................
3.2.4 Bus start 21........................................................................
3.2.5 Send parameterisation data – Set_Prm 21................................................
3.2.6 Check configuration data – Chk_Cfg 22..................................................
3.2.7 Read diagnostic data – Slave_Diag 22...................................................
3.2.8 Transfer input and output data – Data_Exchange 23........................................
A Technical Data 24..........................................................................
B Terminology 26............................................................................
Index 27......................................................................................

1 About this document
4Festo – CPX-E-PB-EN – 2017-07 – English
1 About this document
This document describes the function and parameterisation of the product stated in the title. Safe use of the
product is described in a separate document è1.1 Further applicable documents.
1.1 Further applicable documents
Document Contents
Description of system CPX-E (CPX-E-SYS) Detailed description of system CPX-E
Instructions for using system CPX-E (CPX-E-SYS) Instructions and important notes on mounting,
electrical installation and maintenance tasks in
asystemCPX-E
Instructions for using bus module CPX-E-PB (CPX-E-PB) Instructions and important notes on the use and safe
usage of the product
Documentation for the components in a system CPX-E
and the connected peripherals
Information on using the components
Documentation for the higher-order controller and the
additional participants in the network
Information on commissioning and parameterisation
ofthe components
Tab. 1.1
For all available product documentation èwww.festo.com/pk.
1.2 Target group
This document is intended for qualified personnel. Experience in PROFIBUS DP networks is required in order to
understand this documentation.
1.3 Product version
This document refers to the following product versions:
Product Version number
CPX-E-PB Bus module CPX-E-PB, revision 3 onward
Tab. 1.2
The product version can be identified from the product label or with the help of appropriate software from Festo.
Appropriate software for identifying the product version can be found in the Festo Support Portal
èwww.festo.com/sp.
Information on using the software can be found in the integrated Help function.
There may be an updated version of this document for these or later product versions.
 Check whether a corresponding version of this document is available èwww.festo.com/sp.

1 About this document
Festo – CPX-E-PB-EN – 2017-07 – English 5
1.4 Product labelling
The product labelling is located on the left-hand side of the module. Scanning the printed Data Matrix Code with an
appropriate device calls up the Festo Support Portal, with information appropriate for the product. Alternatively, the
Product Key (11-digit alphanumeric code on the product labelling) can be entered in the search field of the Support
Portal.
1Designation
2Part number/serial number
3Revision status
4Data Matrix Code
5Product Key
6Approvals/warning symbols
7Port assignment
1
2
3
4
5
6
7
Fig. 1.1
1.5 Specified standards
Version status
EN 60529:2013-10 IEC 60204-1:2014-10
EN 61000-6-2:2009-04 IEC 61158:2014-07
EN 61000-6-4:2011-09 NE 21:2012-05
Tab. 1.3

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2 Function
2.1 General remarks
The product is intended for the operation of system CPX-E in a PROFIBUS DP network according to IEC 61158.
Data transmission takes place using an RS485 interface. Using an optical adapter, data transmission through
afibre-optic cable is also possible.
In a PROFIBUS DP network, the product acts as a DP slave and can be combined with up to 31 additional
participants. The process image is assigned by the user using the identifier byte during the planning and design
phase of the DP slave.
For the parameterisation of system CPX-E, the parameterisation data can be sent by the DP master to the bus
module using PROFIBUS DP. Using the DPV1 command, all data and parameters provided by system CPX-E can be
accessed. Through the USB interface, all relevant information of system CPX-E can be read and changed depending
on the function.
2.1.1 Product design
1LED displays
2DIL switch
3Diagnostic interface [DIAG] (mini-USB)
4Terminal strip for the operating voltage supply
UEL/SEN [XD]
5Terminal block lock
6Linking
7Network connection [XF1]
1
2
3
4
6
5
7
Fig. 2.1
2.1.2 Display components
1Network-specific LED indicator:
– Bus error [BF] (red)
2System-specific LED indicators:
– Operating voltage supply UEL/SEN [PS]
(green)
– Load voltage supply UOUT [PL] (green)
– System fault [SF] (red)
– Force mode [M] (yellow)
1
2
Fig. 2.2

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2.1.3 Control elements
DIL switch Function
1The station number of the bus module is set in binary code using the
DILswitches 1 … 7.
Permissible station numbers: 1 … 125
Factory setting: 3
Example: èTab. 2.2
2
3
4
5
6
7
8Device-specific diagnostics
ON = Active (factory setting)
OFF = Inactive
Tab. 2.1
Example of setting the station number
DIL 1: OFF 20= 1 Example:
21+ 22+ 24= 2 + 4 + 16 = 22
èSet station number = 22
DIL 2: ON 21=2
DIL 3: ON 22=4
DIL 4: OFF 23=8
DIL 5: ON 24=16
DIL 6: OFF 25=32
DIL 7: OFF 26=64
Tab. 2.2
2.1.4 Connecting components
Connection [XF1] Signal Designation
1 Shield Functional earth
2 n.c. –
3 RxD/TxD-P Received/transmitted data P
4 CNTR-P Repeater control signal1)
5 DGND Data reference potential (M5V)
6 VP Supply voltage positive (P5V)
7 n.c. –
8 RxD/TxD-N Received/transmitted data N
9 n.c. –
2) Shield Functional earth
1) The repeater control signal CNTR-P is configured as a TTL signal.
2) Housing
Tab. 2.3
Port [XD]1) Signal
0+24 V DC operating voltage supply UEL/SEN
1
20 V DC operating voltage supply UEL/SEN
3
1) The ports XD.0 and XD.1 and also XD.2 and XD.3 are interconnected in the terminal strip.
Tab. 2.4
Diagnostic interface [DIAG]
Via the diagnostic interface [DIAG] (mini-USB), the bus module can be connected to a PC on which parameterisation
and diagnostics software is installed.

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2.1.5 Device description file
The bus module is planned and designed in the control software of the higher-order controller using a device
description file (GSD file). This file contains all the information required for parameterising the system CPX-E using
controller software (such as Siemens STEP 7).
The device description file is available at the Festo Support Portal èwww.festo.com/sp.
2.1.6 Control commands
The control commands FREEZE, SYNC and CLEAR_DATA are supported by system CPX-E according to PROFIBUS
specification IEC 61158. Calling this command depends on the network interface used.
The control commands FREEZE and/or SYNC are reset automatically for:
– Activation/deactivation of system CPX-E
– Stop of the network interface
Only the control command FREEZE is reset automatically in case of:
– Network connection to system CPX-E interrupted (if response monitoring is activated)
FREEZE
All inputs of system CPX-E are “frozen” and system CPX-E sends a constant image of all inputs to the master.
Foreach additional FREEZE command, the input image is updated and reset to the master. The control command
UNFREEZE returns the system to normal operation.
SYNC
All outputs of system CPX-E are “frozen” and, from now on, system CPX-E no longer react to output image changes
in the master. For each additional SYNC command, the output image is assumed in an updated form. The control
command UNSYNC returns the system to normal operation.
CLEAR_DATA
All outputs of system CPX-E is reset.
2.1.7 Identification & Maintenance (I&M)
The “Identification & Maintenance” (I&M) function acts as an electronic product label for the bus module and
provides standardised, non-proprietary access to device-related information about the network.
Functions I&M0 … I&M4 are supported by bus module CPX-E-PB.

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2.2 Address assignment
The system CPX-E is composed of a different number of inputs and outputs, depending on the number and type of
modules CPX-E used and the parameterisation of the bus module. The inputs and outputs are assigned
automatically within the system CPX-E.
The address assignment (number of allocated inputs and outputs) on the system CPX-E must be determined prior to
commissioning.
– A maximum of 10 I/O modules + bus module is permitted in one system CPX-E.
– The address space of a system CPX-E is limited. The bus module provides the system CPX-E with
amaximum address space of 64 bytes for inputs and 64 bytes for outputs.
– Activated diagnostic functions like status bits or the I/O diagnostic interface reduce the number of
inputs and/or outputs in the available address space.
2.3 Addressing
2.3.1 Basic rules for addressing
– The address assignment of the inputs does not depend on the address assignment of the outputs.
– The counting mode is module-oriented from left to right.
– The bus module counts as a module with 0 inputs and 0 outputs when the status bits and the I/O diagnostic
interface are deactivated.
– Activated status bits occupy 8 inputs.
– An activated I/O diagnostic interface occupies 16 inputs and 16 outputs.
2.3.2 Addressing example
1Bus module CPX-E-PB
– Status bits activated
– I/O diagnostic interface deactivated
2Digital input module CPX-E-16DI
3Digital output module CPX-E-8DO
4Digital output module CPX-E-8DO
5Analogue input module CPX-E-4AI-U-I
6Analogue output module CPX-E-4AO-U-I
Module no.: 0 1 2 3 4 5
1 23456
Fig. 2.3
The address assignment for the system CPX-E presented is shown in Tab. 2.5.
Module no. Module Input address Output address
0Bus module CPX-E-PB (with status bits) E0 … E7 –
1Digital input module CPX-E-16DI I8 … I23 –
2Digital output module CPX-E-8DO –A0 … 7
3Digital output module CPX-E-8DO –A8 … 15
4Analogue input module CPX-E-4AI-U-I I24 … I87 –
5Analogue output module CPX-E-4AO-U-I –O16 … O79
Tab. 2.5

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2.4 Diagnostics options
The module supports various diagnostics options, depending on the configuration and parameterisation of the
system CPX-E.
Diagnostics option Description Detailed information
LED display components
System-specific The system status and errors are
displayed directly on the module via LED
indicators.
èInstructions for using system CPX-E
èDescription of system CPX-E
Network-specific The network status and errors are
displayed directly on the module via LED
indicators.
è2.4.1
èInstructions for use of CPX-E-PB
Status bits Common diagnostic messages are
transmitted cyclically to the interface as
internal inputs. Access is via the control
software, independently of the interface
and master.
è2.4.2
èDescription of system CPX-E
I/O diagnostic interface Network-independent diagnostic
interface with read access to the internal
data of the system CPX-E at the I/O level.
è2.4.3
èDescription of system CPX-E
Festo software Malfunctions or errors are displayed
directly on a PC, meaning that
diagnostics is also possible from a higher
automation level.
èOnline help for software
PROFIBUS DP Diagnostics through the network within
the scope of the PROFIBUS functionality.
Detailed module-related and
channel-related error detection by means
of control software.
è2.5
PROFIBUS DPV1 Expanded access to the system data of
system CPX-E through the network using
controller software.
Tab. 2.6

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2.4.1 LED indicators
This document describes the network-specific LED indicators. The system-specific LED indicators are
described in the documentation for system CPX-E è1.1 Further applicable documents.
Bus error [BF]
LED (red) Significance Remedy
flashes
Station number not correct (e.g. address
assigned twice)
 Check address setting of the DIL switches in
the bus module.
Bus interface faulty  Check bus interface of the master.
Bus connection interrupted or short-circuited  Check bus connection.
Faulty configuration  Check configuration of the master.
Bus connection poor or transmission rate not
detected
 Reduce transmission rate.
off
No error –
Tab. 2.7
2.4.2 Status bits
System CPX-E provides 8 status bits for displaying global common diagnostic messages.
The status bits are configured like inputs and supply coded diagnostic information in the form of 0 or 1 signals. If all
status bits are supplying a 0 signal, there is no error. If, in contrast, a status bit supplies a 1 signal, there is an error.
In order to make use of the status bits function, the bus module of the system CPX-E must be configured
accordingly.
The status bits are displayed in the process image insofar as set by the selection of the catalogue entry
“CPX-E-PB DP-Slave [Status]” in the hardware configurator.
If different errors occur simultaneously on different module types, errors cannot be assigned.
To clearly determine errors, the I/O diagnostic interface can be used è2.4.3 I/O diagnostic interface.
You can find detailed information about status bits in the “Description of system CPX-E”
è1.1 Further applicable documents.
2.4.3 I/O diagnostic interface
The system CPX-E provides an I/O diagnostic interface in the form of 16 input bits and 16 output bits for reading
detailed diagnostic information. The I/O diagnostic interface can be used, for example, to precisely determine the
module and channel on which an error has occurred. In order to make use of the I/O diagnostic interface, the bus
module of the system CPX-E must be configured accordingly.
The I/O diagnostic interface is displayed in the process image insofar as set by the selection of the catalogue entry
“CPX-E-PB DP-Slave [DP-V1]” in the hardware configurator.
You can find detailed information about the I/O diagnostic interface in the “Description of system CPX-E”
è1.1 Further applicable documents.

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2.5 Diagnosis via PROFIBUS DP
System CPX-E supports the following diagnostics options via PROFIBUS DP in the following stages according to
IEC 61158:
– Station status (standard diagnostic information)
– Devide-related diagnostics (general, device-related status signals of the system)
– Identifier-related diagnostics (diagnostics assigned to the modules)
– Channel-related diagnostics (diagnostics assigned to the channels)
– Module number
– Channel number and input/output
– Type of diagnostics (error type and channel type)
2.5.1 Diagnostic steps
The necessary steps for performing diagnostics on the system CPX-E are explained below.
Step 1: Evaluation of the standard diagnostic information – station status 1 (diagnostic byte 1)
0
1
1
0
23
1
14
0
5
0
6
0
7
0 1
Bit
Station status 1
Evaluation of Bit 0 and Bit 2:
– No operating voltage present on system CPX-E,
network plug not inserted, etc.
– Configuration data obtained from the master does not
agree with the configuration data from the CPX-E system.
Evaluation of Bit 3:
– Diagnostic message present èStep 2
Step 2: Evaluation of the diagnostic bytes
Byte 7 … 22: Device-specific diagnostics èTab. 2.9
Byte 23 … 29: Identifier-related diagnostics èTab. 2.10 and 2.5.4 Identifier-related diagnosis
Byte 30 … 62: Channel-related diagnostics èTab. 2.11 and 2.5.5 Channel-related diagnosis
Fig. 2.4
The diagnostic information is sent to the master system only when the diagnostic mode is activated.
In some cases, the diagnostics mode must be shut down to commission the system.
2.5.2 Overview of diagnostic bytes
Standard diagnostic information (6 bytes)
Byte Table of contents Explanation
1Station status 1 èTab. 2.12
2Station status 2 èTab. 2.13
3Station status 3 èTab. 2.14
4 Diag.Master_add Address of the master parameterised by system CPX-E.
5Ident_number – High Byte Manufacturer identifier – High Byte (0Fh)
6Ident_number – Low Byte Manufacturer identifier – Low Byte (A3h)
Tab. 2.8

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Device-specific diagnostics (16 bytes)
Byte Table of contents Explanation
7 Header 10h
8 Type 82h
9 Slot 0h
10 Slot 0h
11 Module 0 (Bit 0 and 1)
…
Module 3 (Bit 6 and 7)
2 bits per module:
00 = no error (user data valid)
01 = module error (user data invalid)
10 = incorrect module (user data invalid)
11 = module failed/not present (user data invalid)
12 Modules 4 … 7 èByte 11
13 Modules 8 … 101)
14 … 22 Reserved –
1) Bits 6 and 7 are reserved.
Tab. 2.9
Identification-related diagnosis (7 bytes)
Byte Table of contents Explanation
23 Header 47h
24 Modules 0 … 7 1 bit per module to display pending diagnostics
25 Modules 8 … 10 1 bit per module to display pending diagnostics1)
26 … 29 Reserved –
1) Bits 3 ... 7 are reserved.
Tab. 2.10
Channel-related diagnosis (variable length)1)2)
Byte Table of contents Explanation
30 Module x (Byte 1) Module number
31 (Byte 2) Channel number and input/output
32 (Byte 3) Type of diagnostics (error type/channel type)
33 Module y (Byte 1) Module number
34 (Byte 2) Channel number and input/output
35 (Byte 3) Type of diagnostics (error type/channel type)
… … …
60 Module z (Byte 1) Module number
62 (Byte 2) Channel number and input/output
62 (Byte 3) Type of diagnostics (error type/channel type)
1) The entry is made gap-free in ascending order according to module numbers and independently of the temporal sequence of the diagnostic
messages. If necessary, entries with larger module numbers are moved.
2) 11 diagnostic messages maximum can be processed.
Tab. 2.11

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2.5.3 Standard diagnostic information
The following diagnostic information can be requested from the DP master using function Slave_Diag of system
CPX-E èTab. 3.7.
Station status 11)
Bit Meaning Explanation
0 Diag.Station_Non_E xistent 1 = system CPX-E can no longer/not yet be addressed.
Possible causes:
– Operating voltage not applied
– Data transmission line interruped or disturbed
1 Diag.Station_Not_Ready 1 = system CPX-E not yet ready for data exchange.
2Diag.Cfg_Fault 1 = Configuration data obtained from the master does not agree with
the configuration data from system CPX-E.
3 Diag.Ext_Diag 1 = Diagnostic message exists.
Possible causes:
– Cable fracture on input/output module
– Short circuit/overload of electrical outputs, etc.
4 Diag.Not_Suppor ted 1 = System CPX-E does not support the requested function
5 Diag.Invalid_Slave_Response Always 0 (permanently set by system CPX-E)
6 Diag.Prm_Fault 1 = Last parameterisation telegram incorrect
7 Diag.Master_Lock Always 0 (permanently set by system CPX-E)
1) Bits that refer to system CPX-E are bolded.
Tab. 2.12
Station status 21)
Bit Meaning Explanation
0 Diag.Prm_Req 1 = Master must reconfigure system CPX-E
1Diag.Stat_Diag 1 = Master must request diagnostic data until this bit is set to 0
2 – Always 1 (permanently set by system CPX-E)
3 Diag.WD_On 1 = Response monitoring (watchdog) activated
4Diag.Freeze_Mode 1 = Freeze activated
5Diag.Sync_Mode 1 = Sync activated
6 Reserved –
7 Diag.Deactivated Always 0 (permanently set by system CPX-E)
1) Bits that refer to system CPX-E are bolded.
Tab. 2.13
Station status 3
Bit Meaning Explanation
0 … 6 Reserved –
7 Diag.Ext_Diag_Overflow 1 = system CPX-E has more diagnostic messages than can be buffered
or master contains more diagnostic messages than it can buffer.
Tab. 2.14

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2.5.4 Identifier-related diagnosis
One bit is reserved for every module (identifier byte) assigned during configuration. A set bit means that
adiagnostic message exists in this I/O area.
Header byte
Settings Byte Bit
7 6 5 4 3 2 1 0
Length of the module-related diagnostic block in the byte, including the
header byte
23 0 0 0 1 1 1
Bit 7 and Bit 6 are permanently set 0 1
Tab. 2.15
Module-related diagnostics
Settings Byte Bit
76543210
Pending diagnostics at
Module 0 24 1
Module 1 1
Module 2 1
Module 3 1
Module 4 1
Module 5 1
Module 6 1
Module 7 1
Module 8 251) 1
Module 9 1
Module 10 1
1) Bits 3 ... 7 are reserved.
Tab. 2.16
2.5.5 Channel-related diagnosis
3 bytes of diagnostic data are available for each channel:
Byte 1: Module number
Byte 2: Channel number and input/output
Byte 3: Type of diagnostics (error type and channel type)
For the entries in the diagnostic bytes 30 … 62 (channel-related diagnostics), the following applies:
– The entry is made gap-free in ascending order according to module numbers
– The entries must always be in the same sequence as the module numbers, irrespective of the time
sequence of the diagnostic messages (if necessary, the entries with large module numbers will be
shifted).
– In the case of module-orientated and channel-orientated faults on a module, only the
module-orientated diagnostic message will be entered.
– If there are several channel-orientated faults on a module, only the diagnostic message of the
channel with the lowest channel number will be entered.
– 11 diagnostic messages maximum can be processed.
Module number
Settings Byte Bit
76543210
Module number 0 … 63 0101
01010101
Bit 6 and Bit 7 are permanently set 1 0
Tab. 2.17

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Channel number and input/output
Settings Byte Bit
76543210
Channel number 0 … 63 0101
01010101
Input/output
Reserved 0 0
Input 0 1
Outlet 1 0
Input/output 1 1
Tab. 2.18
Type of diagnosis
Settings Byte Bit
76543210
Error type èTab. 2.20 01
01010101
Channel type
Reserved 000
1 bits 001
2 bits 010
4 bits 011
1 bytes 100
1 word 101
2 words 110
Reserved 111
Tab. 2.19
Value Error type (standard)1) Value Error type (Festo)1)
0 Reserved 16 Incorrect valve setting
1Short circuit 17 Valve: switching cycle meter, limit value
exceeded
2 Undervoltage 18 … 19 Reserved
3 Overvoltage 20 Parametrizing fault (configurable)
4 Overload 21 Parametrizing fault (data format)
5 Over-temperature 22 Parametrizing fault (linear scaling)
6Cable break 23 Parameterisation error (digital filter)
7Upper limit exceeded 24 Parameterisation error (lower limit value)
8Lower limit undershot 25 Parameterisation error (upper limit value)
9 … 15 Reserved 26 Actuator supply faulty
27 … 29 Reserved
30 Slave has no network connection
31 Channel failed
1) For bus module CPX-E-PB, the relevant error types are bolded.
Tab. 2.20

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3 Parameterisation
The behaviour of the system CPX-E can be parameterised with the aid of suitable software from Festo or using
ahigher-order controller. Here, a distinction is made between the following variants:
– System parameters
– Module parameters (module-specific and channel-specific)
– Parameterisation of the diagnostic memory
A detailed description of the individual parameters can be found in “Description of system CPX-E” and
inthe descriptions of the individual modules è1.1 Further applicable documents.
3.1 Access to system CPX-E via DPV1
By means of a higher-order controller, parameter and status information, as well as the system data of system
CPX-E, can be accessed by DPV1 commands.
The DPV1 command is available only if the bus module is configured with the following option:
“CPX-E-PB:DP-Slave [DP-V1]”
3.1.1 Data records
The parameters and data are accessed by a slot number and an index number.
The slot number for module-related data is as follows:
– Slot number = module number + 100
The index number can be found in Tab. 3.1 … Tab. 3.4.
The following tables show the connection between the access to parameters and data with DPV1 and function
numbers.
Additional information the function numbers can be found in “Description of system CPX”
è1.1 Further applicable documents.
Slot 1: System parameters
Index Name Length
[byte]
Access1) Data record
number2)
Function number
16 System data 16 r 16 0 … 2
3 … 15 (reserved)
17 System parameters 8 r/w 17 4400 (reserved)
4401 … 4407
18 Reserve 64 r/w 18 3416
19 System diagnostics data 8 r 19 1936 … 1938
1939 … 1943 (reserved)
20 Diagnostic memory parameters 8 r/w 20 3480 … 3487
21 Diagnostic memory entry 0 10 r 21 3488 … 3497
22 Diagnostic memory entry 1 10 r 22 3498 … 3507
… … 10 r … …
60 Diagnostic memory entry 60 10 r 60 3878 … 3887
65 Delete diagnostic memory 1 w 65 –
1) r = read access; w = write access
2) Siemens S7: “S7-compatible” parameter setting
Tab. 3.1

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Slot 2: Channel-specific module parameters
Index Name Length
[byte]
Access1) Data record
number2)
Function number
16 Fault mode 64 r 2 3888
17 Fault state 64 r 3 3952
18 Force mode Outputs 64 r 4 4016
19 Force state Outputs 64 r 5 4080
20 Force mode Inputs 64 r 6 4144
21 Force state Inputs 64 r 7 4208
22 Global operating system data 40 r 8 4792
1) r = read access; w = write access
2) Siemens S7: “S7-compatible” parameter setting
Tab. 3.2
The data records (system parameters, module data and module parameters) can be read and written indirectly at
Slot 3.
For this purpose, the command box is assigned a slot number, index number and offset (Byte 4 is reserved).
Read and write procedures can be performed using Read Box and Write Box.
Slot 3: Indexed addressing of the objects
Index Name Length
[byte]
Access1) Data record
number2)
Function number
16 Command box 4 r/w 9 –
17 Read Box 64 r 10 –
18 Write Box 64 w 11 –
1) r = read access; w = write access
2) Siemens S7: “S7-compatible” parameter setting
Tab. 3.3
Slots 100 … 147: Module data and module parameters
Index Name Length
[byte]
Access1) Data record
number2)
Function number3)
16 Module configuration 16 r/w 72 16 + 16m
17 Module serial number 4 r 73 784 + 4m
18 Diagnostic data module 4 r 74 2008 + 4m
19 Reserve 4 r/w 75 3224 + 4m
20 Set module configuration 8 r/w 76 4408 + 8m
21 Module parameter 64 r/w 77 4828 + 64m
22 Module parameter sets 16 r 78 976 + 16m
23 Diagnosis of all input channels 64 r 79 –
24 Diagnosis of all output channels 64 r 80 –
25 Module Fault mode 64 r/w 81 –
26 Module Fault state 64 r/w 82 –
27 Module forcen: Outputs 64 r/w 83 –
28 Module forcen: Outputs 64 r/w 84 –
29 Module forcen: Inputs 64 r/w 85 –
30 Module forcen: Inputs 64 r/w 86 –
1) r = read access; w = write access
2) Siemens S7: “S7-compatible” parameter setting
3) m = Module number
Tab. 3.4

3 Parameterisation
Festo – CPX-E-PB-EN – 2017-07 – English 19
3.1.2 Examples for access to data records through DPV1
The following examples refer to the system CPX-E shown in Fig. 3.1.
1Bus module CPX-E-PB (with status bits)
2Digital input module CPX-E-16DI
3Digital output module CPX-E-8DO
4Digital output module CPX-E-8DO
5Analogue input module CPX-E-4AI-U-I
6Analogue output module CPX-E-4AO-U-I
Module no.: 0 1 2 3 4 5
1 23456
Fig. 3.1
Access to data records
For module no. 3 (digital output module CPX-E-8DO), module parameter “Behaviour after short circuit” shall be
changed.
First, the command box is assigned as follows èTab. 3.5.
Command box assignment
Byte 1 2 3 4
Table of contents Slot number Index number Offset –
Example 1031) 21 1 –
1) As module-related data are relevant here: slot number = module number + 100
Tab. 3.5
After that, value 0 must be transferred with Write Box.
Access to diagnostic memory
Diagnostic memory entry 0 shall be read.
First, the command box is assigned as follows èTab. 3.6.
Command box assignment
Byte 1 2 3 4
Table of contents Slot number Index number Offset –
Example 1 21 0 –
Tab. 3.6
After that, the diagnostic memory entry 0 must be read with Read Box.

3 Parameterisation
20 Festo – CPX-E-PB-EN – 2017-07 – English
3.2 Operation with the general DP master
System CPX-E can be controlled by a PLC, PC or industrial PC with a PROFIBUS DP interface according to the
PROFIBUS specification pursuant to IEC 61158.
3.2.1 Implemented functions and service access points
DSAP1) Function Data from master to slave Data from slave to master
NIL Data_Exchange Output data Input data
0 … 48
(0x00 … 0x30)
MSAC_C2 Function for communication with a Class 2 master (e.g., PC/PG)2)
50 … 51
(0x32 … 0x33)
MSAC_C1 Function for communication with a Class 1 master (e.g., PLC)3)
55 (0x37) Set_Slave_Add Not available
56 (0x38) RD_Inp Empty Input data
57 (0x39) RD_Outp Empty Output data
58 (0x3A) Global_Control Control –
59 (0x3B) Get_Cfg Empty Configuration
60 (0x3C) Slave_Diag Empty Leakage
61 (0x3D) Set_Prm Parameter Short Confirmation (SC)4)
62 (0x3E) Chk_Cfg Configuration Short Confirmation (SC)4)
1) Destination Service Access Point
2) Dynamic use and service access points are defined at the connection set-up.
3) Fixed service access points
4) Short confirmation
Tab. 3.7
3.2.2 Bus parameters and reaction times
Transmission rate [kbps] max TSDR [Tbit]1) min TSDR [Tbit]2)
9.6
19.2
93.75
187.5
60 11
500 100
1500 150
3000 250
6000 450
12000 800
1) Maximum Station Delay Responder
2) Minimum Station Delay Responder
Tab. 3.8
3.2.3 Transmission times on PROFIBUS DP
The transmission times depend on the cycle time of the PLC and update time of the network.
Independently of structure, the delay times within system CPX-E amount to less than 1 ms.
The calculation of the overall transmission time can be found in the controller user documentation.