Festo CPX-FB23, CPX-FB23-24 Description

Terminal CPX

Bus node
CPX-FB23, CPX-FB23-24

Description

Fieldbus protocol
CC-Link

526404

1411b

[8042122]

CPX-FB23, CPX-FB23-24

Translation of the original instructions
P.BE-CPX-FB23-24-EN

CC-Link®, Mitsubishi® and TORX® are registered trademarks of the respective trademark owners in
certain countries.

Identification of hazards and instructions on how to prevent them:

Warning

Hazards that can cause death or serious injuries.

Caution

Hazards that can cause minor injuries or serious material damage.

Other symbols:

Note

Material damage or loss of function.

Recommendations, tips, references to other documentation.

Essential or useful accessories.

Information on environmentally sound usage.

Text designations:
 Activities that may be carried out in any order.

1. Activities that should be carried out in the order stated.
– General lists.

2 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

CPX-FB23, CPX-FB23-24

Table of contents – CPX-FB23, CPX-FB23-24

1 Safety and requirements for product use 7......................................

1.1 Safety 7..................................................................

1.1.1 General safety information 7..........................................

1.1.2 Intended use 7.....................................................

1.2 Requirements for product use 8...............................................

1.2.1 Technical prerequisites 8............................................

1.2.2 Qualification of the specialized personnel (requirements for the personnel) 9...

1.2.3 Range of application and certifications 9................................

2 Installation as function module F24 10..........................................

2.1 General instructions on installation 10...........................................

2.2 Electrical connection and display components 11..................................

2.3 Dismantling and mounting 12..................................................

2.3.1 Dismantling 12.....................................................

2.3.2 Mounting 13.......................................................

2.4 Settings of the DIL switches on the bus node 13...................................

2.4.1 Removing and attaching the DIL switch cover 13...........................

2.4.2 Arrangement of the DIL switches 14.....................................

2.4.3 Setting the DIL switches 14...........................................

2.4.4 Setting the operating mode 15.........................................

2.4.5 Setting the baud rate 16..............................................

2.4.6 Configuration as function module F24 or F23 17...........................

2.4.7 Setting the CC-Link slave address 18....................................

2.4.8 Setting of mapping optimisation 21.....................................

2.4.9 Setting the HOLD/CLEAR function 23....................................

2.4.10 Setting the system diagnostics 24......................................

2.5 Connecting the fieldbus 25....................................................

2.5.1 Fieldbus cable 25...................................................

2.5.2 Fieldbus baud rate and fieldbus length 26................................

2.5.3 Pin allocation of the fieldbus interface 28................................

2.5.4 Connecting the fieldbus 28............................................

2.5.5 Fieldbus connection with terminating resistors 31..........................

2.6 Pin allocation of power supply 32...............................................

3 Commissioning as function module F24 33.......................................

3.1 General instructions for commissioning 33........................................

3.2 Configuration and addressing 33................................................

3.2.1 Number of inputs/outputs 33..........................................

3.2.2 Addressing rules 35..................................................

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 3

CPX-FB23, CPX-FB23-24

3.2.3 Addressing examples (examples of address assignment) 37.................

3.2.4 Address assignment after extension/conversion 42........................

3.2.5 CC-Link memory mapping 42...........................................

3.2.6 Fieldbus configuration 44.............................................

3.3 Parameterisation 45.........................................................

3.3.1 Parameters of the CPX terminal 46......................................

3.3.2 Parameterisation concepts 47.........................................

3.4 Commissioning of the CPX terminal on the fieldbus 48...............................

3.4.1 HOLD/CLEAR and Fail Safe 48..........................................

3.4.2 RUN/PAUSE and STOP of the master 48..................................

3.4.3 RAS function 48.....................................................

3.5 Operation as function module F24 to CC-Link master version 1.1 49....................

4 Diagnostics and error handling 50..............................................

4.1 General instructions on diagnostics and error handling 50............................

4.2 Summary of diagnostics options 51.............................................

4.3 Error messages of the bus node CPX-FB23-24 52...................................

4.4 Diagnostics via LEDs 53.......................................................

4.4.1 Standard operating status 54..........................................

4.4.2 CPX-specific LEDs 55.................................................

4.4.3 CC-Link-specific LEDs 57..............................................

4.4.4 Possible operating statuses of CC-Link-specific LEDs 58.....................

4.5 Diagnostics via fieldbus CC-Link 59..............................................

4.5.1 Status bits 59......................................................

4.5.2 I/O diagnostics interface 60...........................................

5 Function module F23 61......................................................

5.1 General instructions 61.......................................................

5.2 Installation 61..............................................................

5.2.1 Setting the operating mode 62.........................................

5.2.2 Setting the number of stations per slave / number of I/O bytes 63.............

5.3 Commissioning 64...........................................................

5.3.1 Configuration and addressing 64.......................................

5.3.2 Address assignment after extension/conversion 72........................

5.3.3 CC-Link memory mapping 72...........................................

5.3.4 Fieldbus configuration 75.............................................

5.4 Parameterisation 75.........................................................

5.5 Commissioning of the CPX terminal on the fieldbus 75...............................

5.5.1 RUN/PAUSE and STOP of the master 76..................................

5.6 General notes on diagnostics and error handling 76.................................

4 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

CPX-FB23, CPX-FB23-24

A Technical appendix 77........................................................

A.1 Technical data 77............................................................

A.2 Default parameterisation 78...................................................

A.3 Accessories 79..............................................................

B Glossary 80................................................................

B.1 List of abbreviations 80.......................................................

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 5

CPX-FB23, CPX-FB23-24

Notes on this documentation

Note

This description refers to the CPX bus node type CPX-FB23 from Revision R14 (CC-Link
version 1.1) and type CPX-FB23-24 from revision R22 (CC-Link version 1.1 and 2.0). For
corresponding specifications, see rating plate.

This description contains specific information on installing, commissioning, programming and dia
gnostics with the CPX bus node for CC-Link.

The CPX bus node type CPX-FB23-24 supports either the CC-Link versions 2.0 and 1.1.

Because of the fundamental differences between protocol versions 2.0 and 1.1, the correspondingly
configured bus node is either designated as a function module F24 (CC-Link version 2.0) or as a func
tion module F23 (CC-Link version 1.1). These designations are found, for example, in the system repres
entation of the Festo Maintenance Tools (CPX-FMT) or in the handheld terminal (CPX-MMI) from Festo.
– CC-Link version 2.0 corresponds to the function module F24 and supports up to four stations per

slave with extended address space. It is possible to configure addressing to be either cycle-time-op
timised or station-optimised.

– CC-Link version 1.1 corresponds to the function module F23 and supports up to four stations per

slave up to an address volume of 32 bytes of inputs and outputs.

The remote controller operating mode is available only in the configuration as function
module F23. The remote I/O operating mode must be set in the configuration as function
module F24.

Product identification, versions

– In chapters 2 to 4, the behaviour and operation of the bus nodes CPX-FB23-24

is described in the configuration F24.

– The corresponding information on bus nodes is found CPX-FB23 in the CPX-FB23-24

configuration F23, summarised in chapter 5.

General information on the fieldbus CC-Link is found in the documentation for your CC-Link master and
for the relevant control systems (e.g. from Mitsubishi). An overview can be found under www.cc­link.org.
General basic information about the mode of operation, mounting, installation and commissioning of
CPX terminals can be found in the CPX system description (P.BE-CPX-SYS-…).
Information about additional CPX modules can be found in the description for the respective module.

Service

Please consult your regional Festo contact if you have any technical problems.

6 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

1 Safety and requirements for product use

1 Safety and requirements for product use

1.1 Safety

1.1.1 General safety information

 Observe the general safety information in the corresponding chapters.

Specific safety regulations can be found immediately before the task instructions.

Note
Damage to the product from incorrect handling.

 Switch off the supply voltage before mounting and installation work. Switch on sup

ply voltage only when mounting and installation work are completely finished.
 Never unplug or plug in a product when powered!
 Observe the handling specifications for electrostatically sensitive devices.

1.1.2 Intended use

The bus node documented in this description is intended as a participant on the fieldbus system Con
trol & Communication link (CC-Link) from Mitsubishi exclusively for use in the Festo CPX terminal for
installation in machines or automated systems and used as follows:
– In excellent technical condition
– In original status without unauthorised modifications, except for the adaptations described in this

documentation

– Within the limits of the product defined by the technical data (è Appendix A.1)

Note

In the event of damage caused by unauthorised manipulation or other than intended
use, the guarantee is invalidated and the manufacturer is not liable for damages.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 7

1 Safety and requirements for product use

Warning
Danger of electric shock from voltage sources without protective measures.

 Use only PELV circuits in accordance with EN 60204-1 (Protective Extra-Low Voltage,

PELV) for the electric logic supply.

 Also observe the general requirements for PELV circuits in accordance with

EN 60204-1.

 Only use power sources which guarantee reliable electrical isolation of the operating

voltage in accordance with EN 60204-1.

Through the use of PELV circuits, protection from electric shock (protection from direct and indirect
contact) in accordance with EN 60204-1 is ensured (Electrical equipment of machines. General require
ments).

In the CPX system description (P.BE-CPX-SYS-…), read the information on power supply as
well as on the earthing measures to be carried out.

Note

In the event of damage caused by unauthorised manipulation or other than intended
use, the guarantee is invalidated and the manufacturer is not liable for damages.

1.2 Requirements for product use

 Make this documentation available to the design engineer, installer and personnel responsible for

commissioning the machine or system in which this product is used.

 Make sure that the specifications of the documentation are always complied with. Consider also the

documentation for other components and modules (e.g. CPX system description P.BE-CPX-SYS-…).

 Take into consideration the legal regulations applicable for the destination, as well as:

– Regulations and standards,
– Regulations of the testing organizations and insurers,
– National specifications.

1.2.1 Technical prerequisites

General conditions for the correct and safe use of the product, which must be observed at all times:
 Comply with the connection and environmental conditions specified in the technical data of the

product (è Appendix A.1) and of all connected components.
Only compliance with the limit values or load limits permits operation of the product in accordance
with the relevant safety regulations.

 Observe the instructions and warnings in this documentation.

8 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

1 Safety and requirements for product use

1.2.2 Qualification of the specialized personnel (requirements for the personnel)

This description is directed exclusively to technicians trained in control and automation technology,
who are experienced in:
– Installation, commissioning, programming and diagnostics of participants in the CC-Link fieldbus

system
– The applicable regulations for operating safety-engineered systems
– The applicable regulations for accident prevention and industrial safety
– The documentation for the product

1.2.3 Range of application and certifications

Standards and test values, which the product complies with and fulfils, can be found in the “Technical
data” section (è Appendix A.1). The product-relevant EU directives can be found in the declaration of
conformity.

Certificates and the declaration of conformity for this product are found on the Internet page
of Festo (è www.festo.com).

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 9

2 Installation as function module F24

2 Installation as function module F24

The instructions and descriptions for installation in this chapter with exception of sec
tion 2.4.8 are valid also for the configuration as a function module F23.
For the function module F23, section 5.2.2 is valid instead of the section 2.4.8.

2.1 General instructions on installation

Warning

 Before carrying out installation and maintenance work, switch off the following:

– Compressed air supply
– Operating voltage supply for the electronics/sensors
– Load voltage supply for the outputs/valves

In this way, you can avoid

– Uncontrolled movements of loose tubing
– Accidental movements of the connected actuator technology
– Undefined switching states of the electronics

Caution

The CPX bus node for CC-Link contains electrostatically sensitive devices.
 Therefore, do not touch any components.
 Observe the handling specifications for electrostatically sensitive devices.
They will help you avoid damage to the electronics.

Note

Handle all modules and components with great care. Pay particular attention to the
following:
– Comply with the specified torques

10 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

2.2 Electrical connection and display components

The following connection and display components are found on the CPX bus node:

4

1 Fieldbus status and CPX-specific LEDs
2 Fieldbus connection (9-pin Sub-D socket)
3 DIL switch cover
4 Service interface for

handheld terminal (CPX-MMI) or
Festo Maintenance Tool (CPX-FMT)

Fig. 2.1 Connection and display components on the bus node

Run PS

Error

RD

PM

SFMSD

1

23

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 11

2 Installation as function module F24

2.3 Dismantling and mounting

The CPX bus node is installed on an interlinking block of the CPX terminal (è Fig. 2.2).

Warning

Mounting/dismounting of the bus node must always take place in a de-energised
status.
 Disconnect the corresponding CPX terminal completely from the related voltage

supply or switch it off.

2.3.1 Dismantling

Dismantle the bus node as follows:

1. Loosen the 4 screws of the bus node with a

®

screwdriver size T10.

TOR X

2. Pull the bus node carefully and without tilting
away from the contact rails of the interlinking
block.

4

1

1 Bus node CPX-FB23-24
2 Interlinking block

3

2

3 Contact rails
4 Screws

Fig. 2.2 Dismantling / mounting the bus node

Note

Always use the appropriate screws for the interlinking block (metal or plastic), depend
ent on the material the block is made of:
– For plastic interlinking blocks: self-tapping screws
– For metal interlinking blocks: screws with metric thread.

Both types of screws are enclosed the bus node is ordered as a single part.

12 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

2.3.2 Mounting

Mount the bus node as follows:

1. Check the seal and the sealing surface.

2. Place the bus node in the interlinking block. Make sure that the corresponding slots with the con
tacting terminals on the bottom of the bus node are above the contact rails.

3. Push the bus node carefully and without tilting into the interlinking block up to the stop.

4. Tighten the screws only by hand. Set the screws so that the self-cutting threads can be used.

®

5. Tighten the screws with a TORX

screwdriver size T10 with 0.9 ... 1.1 Nm torque.

2.4 Settings of the DIL switches on the bus node

Note

This section describes how the DIL switch is set in the configuration of the bus node as
function module F24 (support of CC-Link version 2.0).

In order to set the bus node, you must first remove the cover for the DIL switches.

Caution

The CPX bus node for CC-Link contains electrostatically sensitive devices.
 Therefore, do not touch any components.
 Observe the handling specifications for electrostatically sensitive devices.
They will help you avoid damage to the electronics.

2.4.1 Removing and attaching the DIL switch cover

You need a TORX® screwdriver size T10 to remove or attach the DIL switch cover.

Note

Observe the following notes when removing or attaching the DIL switch cover:
 Disconnect the power supply before removing the DIL switch cover.
 Make sure that the seal is seated correctly when attaching the cover!
 Tighten the two fastening screws at first by hand and then with max. 0.4 Nm.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 13

2 Installation as function module F24

2.4.2 Arrangement of the DIL switches

There are 5 DIL switches available for configuring the bus node. They are located underneath the DIL
switch cover (è Section 2.4.1).

1 DIL switch 1:

– Operating mode and baud rate

2 DIL switch 1 and 2:

1

2

– Baud rate

3 DIL switch 3:

3

– Function F24/F23
– CC-Link slave address

4 DIL switch 4:

4

– Mapping optimisation

5 DIL switch 5:

– HOLD/CLEAR

5

– System diagnostics

Fig. 2.3 DIL switches in the bus node CPX-FB23-24 – function module F24

(additional information è Sections 2.4.4 … 2.4.10)

2.4.3 Setting the DIL switches

1. Switch off the power supply.

2. Remove the DIL switch cover (è Section 2.4.1).

3. Carry out the required settings (è Section 2.4.4 … 2.4.10).

4. Attach the DIL switch cover again (è Section 2.4.1).

Note

Parameterisation via DIL switch settings is taken over only when the power supply is
switched on.

ON ON

12 12

ON

ON ON

12 12

1234 5 678

14 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

2.4.4 Setting the operating mode

You set the operating mode of the bus node with switch element 1.1 of DIL switch 1.

Operating mode

Remote I/O operating mode

All functions of the CPX terminal are con

Setting DIL switch 1

1.1: OFF

(factory setting)
trolled directly by the higher-order PLC/IPC.
The bus node undertakes the required con
nection to CC-Link.

Not possible

1.1: ON
The remote controller operating mode is
available only in the configuration as func
tion module F23. The remote I/O operating

mode must be set in the configuration as
function module F24.

Tab. 2.1 Operating mode

Note

The setting of the operating mode with the DIL switch has priority over all other set
tings.
Setting of the DIL switch 1.1 to ON causes a change to the configuration as function
module F23, independent of the setting of DIL switch 3.8 (è 2.4.6).

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 15

2 Installation as function module F24

2.4.5 Setting the baud rate

You can set the baud rate with the DIL switch elements 1.2 of the DIL switch 1 and the DIL switch ele
ment 2.1 and 2.2 of the DIL switch 2.

Baud rate Setting DIL switches 1.2 and 2

156 kBd 1.2: OFF

2.1: OFF

2.2: OFF

625 kBd 1.2: ON

2.1: OFF

2.2: OFF

2.5 MBd 1.2: OFF

2.1: ON

2.2: OFF

5 MBd 1.2: ON

2.1: ON

2.2: OFF

10 MBd 1.2: OFF

2.1: OFF

2.2: ON
(factory setting)

Switch position combinations that are not presented are impermissible.

Tab. 2.2 Baud rate

The maximum range per segment is dependent on the baud rate (è Section 2.5.2).

16 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

2.4.6 Configuration as function module F24 or F23

With the DIL DIL switch 3.8 of the DIL switch 3, the bus node can either be configured as function mod
ule F24 or as function module F23.

Function module Setting DIL switch 3

F24:

Supports CC-Link version 2.0

F23:

Supports CC-Link version 1.1

3.8: ON

78

(factory setting)

3.8: OFF

78

Tab. 2.3 Function module F24 or F23

The factory setting of the DIL switch 3.8 is dependent on the order of the bus node. If the
bus node is ordered as part of a CPX terminal, either the function module F24 or F23 can
be selected during the configuration of the CPX terminal.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 17

2 Installation as function module F24

2.4.7 Setting the CC-Link slave address

The CC-Link slave address of the CPX terminal is set with DIL switch elements 3.1 to 3.7 of the DIL
switch 3.

CC-Link slave address Setting DIL switch 3 Decimal

Permitted addresses:
1 … 64

Factory setting: 1

3.7: 22 x 10

3.6: 21 x 10

3.5: 20 x 10

3.4: 2

3.3: 2

3.2: 2

12 34 56 78

3.1: 2

3
2
1
0

= 40
= 20
= 10
= 8
= 4
= 2
= 1

Tab. 2.4 CC-Link slave address

Note

The CC-Link slave address set here refers to the first station occupied by the CPX termin
al in the fieldbus. Depending on the expansion of the CPX terminal and the resulting
required stations, additional slave addresses and/or stations are automatically as
signed by the CPX terminal, if necessary. CC-Link slave addresses may only be assigned
once per fieldbus line.

Example: address 05 Example: address 26

8

–
–
–
–
+ 22 =4
–

12 34 56 7

+ 20 =1
Address: 5

–
+ 21 × 10= 20
–
–
+ 22 =4
+ 21 =2

1234 5678

–
Address: 26

Tab. 2.5 Examples of set addresses

18 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

On the following pages, you will find an overview of the setting the CC-Link slave addresses 1 … 64.

Address DIL switches Address DIL switches

3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.1 3.2 3.3 3.4 3.5 3.6 3.7

1 ON

OFF OFF OFF OFF OFF OFF

2

OFF

ON

OFF OFF OFF OFF OFF

3 ON ON

OFF OFF OFF OFF OFF

4

ON

OFF OFF

5 ON

ON

OFF

6

ON ON

OFF

7 ON ON ON

8

OFF OFF OFF

9 ON

OFF OFF

10

OFF OFF OFF OFF

11 ON

OFF OFF OFF

12

OFF

ON

OFF OFF

13 ON ON

OFF OFF

14

ON

OFF OFF

15 ON

ON

OFF

16

ON ON

OFF

OFF OFF OFF OFF

OFF OFF OFF OFF

OFF OFF OFF OFF

OFF OFF OFF OFF
ON

OFF OFF OFF

ON

OFF OFF OFF
ON

OFF OFF

ON

OFF OFF

ON

OFF OFF

ON

OFF OFF

ON

OFF

OFF OFF

ON

OFF

OFF OFF

ON

OFF

OFF OFF

17 ON ON ON

18

OFF OFF OFF

19 ON

OFF OFF

20

OFF OFF OFF OFF OFF

21 ON

OFF OFF OFF OFF

22

OFF

ON

OFF OFF OFF

23 ON ON

OFF OFF OFF

24

ON

OFF OFF

25 ON

ON

OFF

26

ON ON

OFF

27 ON ON ON

28

OFF OFF OFF

29 ON

OFF OFF

30

OFF OFF OFF OFF

31 ON

OFF OFF OFF

32

OFF

ON

OFF OFF

ON
OFF
ON ON

ON ON

OFF OFF

OFF OFF

OFF OFF

OFF OFF
ON

OFF
ON

OFF

ON ON

ON ON

ON ON

OFF OFF

OFF OFF

OFF OFF
ON

ON

ON

ON

ON

ON

ON

ON

ON

ON

Switch position combinations that are not presented are impermissible.

Tab. 2.6 Setting of the addresses 33 … 64: entry of the DIL switch

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 19

2 Installation as function module F24

Address DIL switches Address DIL switches

3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.1 3.2 3.3 3.4 3.5 3.6 3.7

33 ON ON

OFF OFF

34

ON

OFF OFF

35 ON

ON

OFF

36

ON ON

OFF

37 ON ON ON

38

OFF OFF OFF

39 ON

OFF OFF

40

OFF OFF OFF OFF OFF OFF OFF

41 ON

ON ON

ON ON

OFF

ON ON

OFF

ON ON

OFF

ON ON
OFF
ON ON ON

ON ON ON

49 ON

OFF

OFF OFF

50

OFF

OFF OFF OFF OFF

51 ON

OFF

52

OFF

OFF OFF OFF
ON

OFF

53 ON ON

OFF

54

OFF

OFF OFF

55 ON

OFF

56

OFF
ON ON

OFF

ON 57 ON ON ON

OFF OFF OFF OFF OFF

42

43 ON ON

44

45 ON

46

47 ON ON ON

ON

OFF

OFF OFF

OFF
ON ON

OFF

OFF OFF OFF OFF

OFF OFF OFF OFF
ON

OFF OFF OFF

ON

OFF OFF OFF

OFF OFF OFF

ON 58

OFF OFF OFF

ON 59 ON

OFF OFF

ON 60

OFF OFF OFF OFF OFF

ON 61 ON

OFF OFF OFF OFF

ON 62

ON

OFF

ON 63 ON ON

OFF OFF OFF

48

OFF OFF OFF

ON

OFF OFF

ON 64

OFF OFF

Switch position combinations that are not presented are impermissible.

Tab. 2.7 Setting of the addresses 1 … 32: entry of the DIL switch

ON

OFF OFF
ON

ON

ON

OFF OFF

ON
OFF OFF
ON

ON

OFF

ON

ON

OFF

ON

OFF

ON

OFF
ON ON

ON ON

OFF OFF OFF

OFF OFF OFF
ON

OFF OFF

ON

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

OFF OFF

ON

OFF

ON

OFF

ON
OFF
ON ON

ON ON

ON ON

ON ON

ON ON

20 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

2.4.8 Setting of mapping optimisation

You set the mapping optimisation of the bus node with the DIL switch 4.2 of the DIL switch 4.

Mapping optimisation

Cycle-time optimised

The mapping is optimised to a cycle time

Setting DIL switch 4

4.2: OFF

(factory setting)
that is as small as possible. More stations
are occupied if necessary. This setting en
ables also the operation on a CC-Link Mas
ter Version 1.1 as a function module F24
with a max. address space of 4 stations for
single cycle time (è Section 3.5).

Station-optimised

4.2: ON
The mapping is optimised to as few as pos
sible assigned stations. If necessary, this
extends the cycle time.

Tab. 2.8 Mapping optimisation

The DIL switch 4.1 of the DIL switch 4 as a function module F24 has no function in the
configuration.

Principle of mapping optimisation

For the mapping optimisation, the CC-Link (version 2.0) option is used to configure 4 advanced cycle
settings. In addition to the standard single cycle, a 2-fold, 4-fold and 8-fold cycle are available; their use
increases the cycle time correspondingly.
The number of stations required and cycles is automatically determined by the bus node according to
the selected type of optimisation (cycle-time-optimised or station-optimised).

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 21

2 Installation as function module F24

The following table shows the theoretically possible configurations for the specified useful data
volume. The useful data volume in the word area relate to the setting with deactivated system dia
gnostics. When activated, the first word in the word area is assigned to the system diagnostics and
reduces the amount of useful data by this amount.

Assigned
stations

1 station Inputs in bit area

2 stations Inputs in bit area

3 stations Inputs in bit area

4 stations Inputs in bit area

Transmitted data Cycle setting

1)

Single

2 bytes 2 bytes 6 bytes 14 bytes

Outputs in bit area

Inputs in word area

Outputs in word area

2 bytes 2 bytes 6 bytes 14 bytes

8 bytes 16 bytes 32 bytes 64 bytes

8 bytes 16 bytes 32 bytes 64 bytes

6 bytes 10 bytes 22 bytes 46 bytes
Outputs in bit area
Inputs in word area
Outputs in word area

6 bytes 10 bytes 22 bytes 46 bytes

16 bytes 32 bytes 64 bytes 64 bytes

16 bytes 32 bytes 64 bytes 64 bytes

10 bytes 18 bytes 38 bytes 64 bytes
Outputs in bit area
Inputs in word area
Outputs in word area

10 bytes 18 bytes 38 bytes 64 bytes

24 bytes 48 bytes 64 bytes 64 bytes

24 bytes 48 bytes 64 bytes 64 bytes

14 bytes 26 bytes 54 bytes –
Outputs in bit area
Inputs in word area
Outputs in word area

14 bytes 26 bytes 54 bytes –

32 bytes 64 bytes 64 bytes –

32 bytes 64 bytes 64 bytes –

2-fold 4-fold 8-fold

Station-optimised

1) Setting requires configuration of the bus node in the master as CC-Link 1.1 slave.

Tab. 2.9 Useful data volume at different cycle and station settings

The useful data volume in the bit area depicted in the table result from the maximum possible amount
of data for each station multiplied by the number of set stations and cycles, minus the data needed for
control of the cycles and the remote ready function.

Composition Example 1 Example 2

Maximum possible data volume per station 4 bytes 4 bytes

× Number of set stations × 3 stations × 3 stations

× Number of set cycles × 1 cycle × 4 cycles

– 2 bytes (1 word) control data per cycle

1)

– 0 × 2 bytes 1)– 4 × 2 bytes

1)

– 2 bytes (1 word) remote ready – 2 bytes – 2 bytes

= Useful data volume = 10 bytes = 38 bytes

1) If more than 1 cycle, required for each cycle

Tab. 2.10 Determining the actual useful data in the bit area

Cycle-time-optimised

22 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

Note

The light grey shaded values stored in Tab. 2.9 (single cycle setting) require configura
tion of the bus node in the master as CC-Link 1.1 slave. Otherwise, a communication
error is issued.

The light grey shaded values Tab. 2.9 are also limited by the system limit of the CPX terminal (max. 64
bytes input and 64 bytes outputs).
The configuration “4 stations, 8-fold cycle setting” is not possible.

The sum of the assigned inputs in bit and word area and the sum of the assigned outputs
in the bit and word area must not exceed 64 bytes, respectively. Otherwise, the CPX ter
minal is not ready for operation.

2.4.9 Setting the HOLD/CLEAR function

The CPX terminal supports the CC-Link HOLD/CLEAR function. With this, system-specific output
statuses can therefore be defined in case of an error.
With the DIL switch element 5.1 of the DIL switch 5, you can set the HOLD/CLEAR function of the CPX
terminal.

HOLD/CLEAR function Setting DIL switch 5.1

CLEAR

Digital outputs are reset in the event of

5.1: OFF

(factory setting)
fieldbus communication errors
(è note).

HOLD

5.1: ON
Digital outputs retain their status in the
event of fieldbus communication errors.

Tab. 2.11 HOLD/CLEAR function

The following fieldbus communication errors count as error cases:
– Interruption of communication
– Timeout of communication

Warning

 Ensure that valves and outputs are put into a safe status if the stated malfunctions

occur.

Incorrect status of valves and outputs can lead to dangerous situations.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 23

2 Installation as function module F24

Note

Reset of outputs means:
– Monostable valves move to the initial position
– Bistable valves remain in the current position
– Mid-position valves go into mid-position (pressurized, exhausted or closed, depend

ing on valve type).

Note

The special CPX fail safe parameterisations (è CPX system description
P.BE-CPX-SYS-…) are not supported by the bus node CPX-FB23-24.

2.4.10 Setting the system diagnostics

With the DIL switch element 5.2 of the DIL switch 5, you set whether the status bits and the I/O dia
gnostic interface are to be available to the system diagnostics in the address range of the CPX terminal.

System diagnostics Setting DIL switch 5.2

No system diagnostics 5.2: OFF

(factory setting)

System diagnostics active

5.1: ON

(è Sections 3.2.5, 4.5 and Tab. 3.3)

Tab. 2.12 System diagnostics

Note

If the system diagnostics are used with the status bits or the I/O diagnostic interface,
the first word in the word area (RWr and RWw) of station 1 will be assigned for the sys
tem diagnostics.

The system diagnostics are only available in the operating mode remote I/O.

Further information on the status bits and I/O diagnostic interface are found in sections 3.2 and 4.5.

24 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

2.5 Connecting the fieldbus

2.5.1 Fieldbus cable

Note

Faulty installation and high transmission rates may cause data transmission errors as a
result of signal reflections and attenuations.
Transmission errors can be caused by:
– Missing or incorrect terminating resistor
– Incorrect screened connection
– Branches
– Transmission over long distances
– Inappropriate cables.
Observe the cable specifications! Refer to the manual for your control system for in
formation on the type of cable to be used.

Note

If the valve terminal is mounted into a moving part of a machine, the fieldbus cable on
the moving part must be provided with strain relief. Note the relevant regulations in
IEC/EN60204-1.

Exact details on the bus length is found in section 2.5.2 and in the manuals for your con
trol system.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 25

2 Installation as function module F24

2.5.2 Fieldbus baud rate and fieldbus length

The maximum permitted fieldbus length depends on the baud rate used . The following table shows the
usable baud rates without repeaters (CC-Link version 1.1 compatible reference cable, terminating res
istor 110 Ω).

Baud rate

Cable length between stations Max. total cable length

156 kBd 1200 m
625 kBd 900 m

2.5 MBd > 0.2 m (for all baud rates) 400 m
5 MBd 160 m
10 MBd 100 m

Master

station

1)

CPX terminal with bus node CPX-FB23-24 = Remote device station

Remote I/O station /

Remote device station

Cable length
between stations

Local station /

1)

Intelligent device station

Total cable length

Remote I/O station /

Remote device station

Tab. 2.13 Baud rate and fieldbus length

For setting the baud rate, observe the instructions in section 2.4.5.

Local station /

1)

Intelligent device station

26 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

Branch lines

The following table shows the specification for branch lines (without repeater) with the CC-Link refer
ence cable.

Topic Specification Comments

Baud rate 625 kBd 156 kBd 10 / 5 / 2.5 MBd not possible.
Maximum length of main
string

100 m 500 m Cable length between the terminating resistors

without the length of the branch line cables.
Max. branch line length 8 m Total cable length for a branch line.
Max. total length of

50 m 200 m Total cable length for all branch lines.
branch lines
Max. number of parti
cipants per branch line
Connecting cables CC-Link reference

6 participants per

branch line

cable

Total number of connectable participants depends
on CC-Link specification.
CC-Link high-performance cable cannot be used
(e.g. FANC-SBH).

The use of different cables is not possible.
Branch line manifold
blocks

Commercially-avail
able branch line

Remove as little insulation as possible from the

cable when it is connected to the main string.

manifold blocks

Branch line connectors Recommended con

nectors for FA
sensors: NECA4202
(IEC 947-5-2) or

compatible
Distance between
branch lines

Any Distance between branch lines (branch line mani

fold blocks or branch line connectors).

Length A < 0.3 m Cable length between remote I/Os or remote device

stations.

< 2 m

1)

2)

Cable length for master, local and intelligent device
stations as well as the adjoining stations.

Length B < 1 m

1) More than 1 m if only remote I/Os and remote device stations are available.

2) More than 2 m if local or intelligent device stations are available.

Tab. 2.14 Specification for branch lines

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 27

2 Installation as function module F24

2.5.3 Pin allocation of the fieldbus interface

Bus connection
Socket Pin CC-Link Designation

1
2
3
4
5
6
7
8
9
Housing

n.c.
DA
DG
n.c.
n.c.
n.c.
DB
n.c.
n.c.
SLD / FG

Free (not connected)
Data A
Data reference potential (data ground)
Free (not connected)
FE via R/C comb. (not connected)
Free (not connected)
Data B
Free (not connected)
Free (not connected)
Cable screening/shield, connection to FE of the CPX terminal

Tab. 2.15 Pin allocation fieldbus connection

2.5.4 Connecting the fieldbus

Connection pattern

12

3

2

3

DA
DB
DG
SLD
FG

45

1 CC-Link master (master module)
2 Intended CC-Link cable

1)

3 CC-Link slave (remote device station)

1) The three cables for connection to DA, DB and DG are twisted.

DA
DB
DG
SLD
FG

DA
DB
DG
SLD
FG

4

4 Terminating resistor
5 Earthing (SLD and FG connected in the

module)

Fig. 2.4 Connection pattern of CC-Link

28 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

You can connect the CPX terminal to the fieldbus CC-Link in one of the following ways:

Manifold block/plug connector

Festo manifold block type

Comments

Protection class IP 20, connection with cable lugs
FBA-1-KL-5POL
Festo Sub-D plug connector type
FBS-SUB-9-GS-2X4POL-B

Degree of protection IP 65/IP 67, connection with cable

clamps
Other Sub-D plug connectors Degree of protection IP20

Tab. 2.16 Manifold block/plug connector for fieldbus connection

Note

Only the Sub-D plug connector from Festo will ensure compliance with IP 65/IP67. Be
fore using fieldbus plugs from other manufacturers:
 Replace the two flat screws with bolts (type UNC-4-40/M3x6).

Manifold block

With the manifold block type FBA-1-KL-5POL, you can connect the CPX terminal to the fieldbus CC-Link.
For connecting the fieldbus cable to the manifold block, use claw cable shoes similar to DIN 46225 ­form B, nominal size B4-1.

FBA-1-KL-5POL

1

2

FBA-1-KL-5POL

FG SLD DG

DB DA

Festo

FG SLD DG

DB DA

3

Festo

4

1 Terminal block:

FG (Ground)
SLD (cable screening)
DG (Data ground)

2 Connect FG with low impedance to FE
3 Earthing the CPX terminal (via the earth

terminal on the end plate)

4 CPX-FB23-24

DB (Data B)
DA (Data A)

Fig. 2.5 Festo manifold block, pin allocation

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 29

2 Installation as function module F24

Sub-D plug connector

Alternatively, you can connect the CPX terminal with sub-D plug from Festo.
 Observe the mounting instructions for the fieldbus plug.
 Clamp the screening of the fieldbus cable under the clamp strap of the sub-D plug from Festo.

Note

The clamp strap in the fieldbus plug is connected internally with the metal housing of
the sub-D plug.
Connection *NC* must not be connected.

12

3

*NC*

*NC*

DBDADG

DBDADG

4

5

1 Folding cover with inspection window
2 Fieldbus cable, seal unused connection with

blanking plate (IP65/IP67)

4 Terminal strip for fieldbus incoming or

continuing

5 CPX-FB23-24 (shown at reduced size)

3 Clamp strap for screened connection

Fig. 2.6 Fieldbus plug from Festo, type FBS-SUB-9-GS-2x4POL-B

30 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

2 Installation as function module F24

Note

 Note that only the Festo sub-D plug guarantees compliance with degree of protec

tion IP65/IP67.
To comply with degree of protection IP65/IP67:
 Mount the DIL switch cover.
 Seal the service interface with the cover cap supplied.
 Use the Festo sub-D plug.

Connecting with sub-D plug connectors of other manufacturers

When connecting sub-D plug connectors of other manufacturers:
 Replace the two flat screws with bolts (type UNC 4-40/M3x6).
 Connect the cable screening to the plug housing.

2.5.5 Fieldbus connection with terminating resistors

Note

If the CPX terminal is at the beginning or end of the fieldbus system, a bus termination is
required.
 To terminate, use a fieldbus terminal on both ends of the fieldbus segment

(è Fig. 2.4).

A resistor between Data A and Data B is used as a fieldbus termination (depending on cable type,
è Tab. 2.17).

12 34

*NC*

*NC*

DBDADG

DBDADG

1 Fieldbus plug from Festo
2 Connection for continued fieldbus sealed

FG SLD DG

*NC*

DGDBDA

DB DA

3 Terminating resistor between DA and DB
4 Festo manifold block

FBS-AB-1-KL-5POL

Festo

with a blanking plug

Fig. 2.7 Fieldbus connection

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 31

2 Installation as function module F24

Cable type Terminating resistor

FANC-110SBH, 20 AWG × 3
CC-110, CC-110-5, CS-110, CM-110-5, 20 AWG × 3
L45467-Y19-C15, 20 AWG × 3

1) KURAMO ELECTRIC Co., Ltd.

2) DYDEN Corporation

3) LEONI protec cable systems GmbH

1)

2)

3)

110 Ω, 0.5 W

Tab. 2.17 Fieldbus connection, cable type, terminating resistor

2.6 Pin allocation of power supply

Warning

 Only use PELV circuits in accordance with IEC/EN 60204-1 (protective extra-low

voltage, PELV) for the electrical power supply.

 Observe also the general requirements for PELV power circuits in accordance with

IEC/EN 60204-1.

 Only use voltage sources which ensure reliable electrical isolation of the operating

voltage in accordance with IEC/EN 60204-1.

Through the use of PELV circuits, protection against electric shock (protection against direct and indir
ect contact) is ensured in accordance with IEC/EN 60204-1.
The current consumption of a CPX terminal depends on the number and type of integrated modules and
components.

In the CPX system description (P.BE-CPX-SYS-…), read the information on power supply as
well as on the earthing measures to be carried out.

32 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

3 Commissioning as function module F24

3 Commissioning as function module F24

3.1 General instructions for commissioning

Note

Before commissioning, you must have installed the CPX terminal correctly
(è Chapter 2).

General information on commissioning the CPX terminal as well as a detailed description
of individual parameters is found in the CPX system description (P.BE-CPX-SYS-…).
Information on commissioning the pneumatic interface and I/O modules is found in the
description for the CPX I/O modules (P.BE-CPX-EA-…).
Notes on commissioning the pneumatic components can be found in the corresponding
description of pneumatics.

3.2 Configuration and addressing

3.2.1 Number of inputs/outputs

Caution

For operation of the bus node CPX-FB23-24 as a function module F24 (CC-Link
version 2.0), the DIL switch element 3. 8 of the DIL-switch 3 must be set on “ON”
(è Section 2.4.6).

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 33

3 Commissioning as function module F24

Note

– The bus node automatically determines the number of inputs and outputs of the

modules installed in the CPX terminal.

– Corresponding to the set mapping optimisation (cycle time or station optimised), the

cycle setting and the required number of stations is automatically configured
(è Section 2.4.8).

– Depending on the required address volume of the CPX terminal, this occupies 1 or

several stations (address space) in the CC-Link system(è Section 2.4.7).

– For an activated system diagnostics function, the 1st word is assigned in the word

area of station 1 (16 input and 16 output addresses). If the I/O diagnostic interface
of the system diagnostics is not used, the first 8 inputs represent the status bits
(è Section 4.5.1).

– With the Festo Maintenance Tool (CPX-FMT) or handheld terminal (CPX-MMI), the

configured parameters, the set CC-Link slave address and baud rate, number of
occupied stations and cycle settings can be read as read-only parameters under the
menu item “Module Data”.

The address assignment within the individual CPX modules is found in the description for
the relevant CPX module.
Based on the CPX module type, you can ascertain the number of inputs and outputs occu
pied by the CPX module.
In the CPX-FMT or CPX-MMI, the individual modules are displayed with their module iden
tifiers. In the I/O modules, the module indicator is depicted in the upper region of the
module next to the LEDs (for example, 8DI for a module with 8 digital inputs).

Detailed information on the electric and pneumatic CPX modules are found in the Festo
Support Portal (è www.festo.com).

34 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

3 Commissioning as function module F24

3.2.2 Addressing rules

I/O counting mode

– The address assignment of the inputs is independent of the address assignment of the outputs.
– The counting mode is independent of the position of the bus node in the CPX terminal.
– Counting mode from left to right, corresponding to the installation position in the CPX terminal and

dependent on the module type.

– Digital I/Os, analogue I/Os and I/Os of technology modules occupy their address volume, ascend

ing respectively without gaps in the corresponding address space.

– Digital I/Os are mapped in the bit area; analogue I/O and I/O technology modules are mapped par

allel in the word area, starting from the 1st station to be mapped.

– Remote ready (RR, CC-Link-specifically reserved) is always in the bit area at the end in the last occu

pied station or last used cycle (è Fig. 3.1 and Fig. 3.2).

– The status bits and the I/O diagnostic interface of the system diagnostics occupy, if activated, the

first 2 bytes of the inputs and outputs of the word area of the 1st station (è e.g. Fig. 3.1).

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 35

3 Commissioning as function module F24

Address assignment (address type) Area Addressing rules

1 Remote ready (RR) Bit area – The last 16 inputs and outputs

(2 byte each) in the bit area (RX, RY) of
the last assigned station are
CC-Link-specifically reserved.

2 System diagnostics (status bits

and I/O diagnostic interface)

Word area – The system diagnostics occupies the first

1)

16 inputs and outputs (2 byte each) in
the word area (RWr, RWw) of station 1.

3 Digital I/O modules, e.g.:

– CPX-4DE
– CPX-8DE
– CPX-4DA
– CPX-8DE-8DA

Bit area – Addresses are occupied in the free

address space of the bit area (RX / RY)
corresponding to the set mapping
optimisation (cycle time or station
optimised).

– Arrangement corresponding to the
or
Pneumatic interfaces, e.g.:
– CPX-VMPA-…
– CPX-VPMPA-FB-…

installation position in the CPX terminal
(from left to right) beyond the cycles
and/or station limits (ascending without
gaps).

or
Pneumatic modules, e.g.:
– VMPA1S-D…
– VMPA2S-D…

4 Analogue modules, e.g.:

– CPX-2AE-…
– CPX-2AA-…

2)

2)

Word area – Addresses are occupied in the free

address space of the word area
(RWr/RWw) corresponding to the set
mapping optimisation (cycle-time- or

5 Technology modules, e.g.:

– CPX-FEC
– CPX-CEC-…
– CPX-CTEL-…
– CPX-CMAX-C1-2

station-optimised).

– Addresses are assigned in the respective

address space parallel to digital I/O and
pneumatic modules.

– Arrangement dependent on the

installation position in the CPX terminal
(from left to right).

1) Only with activated system diagnostics

2) Type of electronic module included.

Tab. 3.1 I/O counting mode: addressing rules for the CPX modules

1)

36 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

3 Commissioning as function module F24

3.2.3 Addressing examples (examples of address assignment)

General example

The following representations show the address allocation of the inputs and outputs with enabled
system diagnostics, different mapping optimisation (cycle-time-optimised or station-optimised) and
with identical configuration of the CPX terminal:
16 DI, 24 DO, 10 AI, 8 AO.

Mapping optimisation: cycle-time-optimised

The following configuration arises from the address volume of the CPX terminal:
3 stations, single cycle time.

Bit area Word area

Station 1

RX
Inputs

X1000 I15 … I0 O15 … O0 Y1000 D1000 System diagnostics (16 I/O) D2000

X1010 I31 … I16 O31 …O16 Y1010 D1001 AI1 AO1 D2001

RY
Outputs

RWr
Inputs

D1002 AI2 AO2 D2002

D1003 AI3 AO3 D2003

RWw
Outputs

Station 2

Station 3

X1020 I47 … I32 O47 … O32 Y1020 D1004 AI4 AO4 D2004

X1030 I63 … I48 O63 … O48 Y1030 D1005 AI5 AO5 D2005

D1006 AI6 AO6 D2006

D1007 AI7 AO7 D2007

X1040 I79 … I64 O79 … O64 Y1040 D1008 AI8 AO8 D2008

X1050 Remote ready (RR = bit 11) Y1050 D1009 AI9 AO 9 D2009

D1010 AI10 AO10 D2010

D1011 AI11 AO11 D2011

Assigned address spaceAvailable address space

Fig. 3.1 Example for cycle-time-optimised CC-Link memory mapping

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 37

3 Commissioning as function module F24

Mapping optimisation: station-optimised

The following configuration arises from the address volume of the CPX terminal:
1 station, 4-fold cycle time.
– The 3rd cycle contains user data in the word area
– The 4th cycle contains no user data
– Remote ready situated at the end of the 2nd cycle

Bit area Word area

Station 1
1st cycle

RX
Inputs

X1000 I15 … I0 O15 … O0 Y1000 D1000 System diagnostics (16 I/O) D2000

X1010 I31 … I16 O31 …O16 Y1010 D1001 AI1 AO1 D2001

RY
Outputs

RWr
Inputs

D1002 AI2 AO2 D2002

D1003 AI3 AO3 D2003

RWw
Outputs

Station 1
2nd cycle

Station 1
3rd cycle

Station 1
4th cycle

X1020 I47 … I32 O47 … O32 Y1020 D1004 AI4 AO4 D2004

X1030 Remote ready (RR = bit 11) Y1030 D1005 AI5 AO 5 D2005

D1006 AI6 AO6 D2006

D1007 AI7 AO7 D2007

X1040 Y1040 D1008 AI8 AO8 D2008

X1050 Y1050 D1009 AI9 AO9 D2009

D1010 AI10 AO10 D2010

D1011 AI11 AO11 D2011

X1060 Y1060 D1012 AI12 AO12 D2012

X1070 Y1070 D1013 AI13 AO13 D2013

D1014 AI14 AO14 D2014

D1015 AI15 AO15 D2015

Assigned address spaceAvailable address space

Fig. 3.2 Example for station optimised CC-Link memory mapping

38 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

3 Commissioning as function module F24

Configuration example

The following example describes a specific configuration of a CPX terminal with digital and analog I/O
modules and MPA pneumatics, and the resulting allocation of I/O data, depending on the selected
mapping optimisation.

Configuration of the CPX terminal

Electric modules Module

Mod.
No.

0 Bus node FB23-24 (F24)

with system diagnostics

1 Digital 8-fold input and 8-fold

identifier

FB24-RIO 2 byte 2)2 byte 2)2 byte

8DI/8DO 1 byte 1 byte – –

Assigned addresses

1)

RX RY RWr RWw

(1 word)

3)

2 byte
(1 word)

3)

output module

2 Analogue 4-fold input module 4AI – – 8 bytes

–

(4 words)
3 Digital 8-fold input module 8DI 1 byte – – –
4 Analogue 2-fold output module 2AO – – – 4 bytes

(2 words)

5 Analogue 4-fold input module 4AI – – 8 bytes

–

(4 words)
6 MPA pneumatic module (type 32)

MPA1S – 1 byte – –
with galvanic isolation
Sum of the respective address ranges 4 bytes 4 bytes 18 bytes

(9 words)

1) Module identifiers on the Festo Maintenance Tool (CPX-FMT) or handheld terminal (CPX-MMI), for

6 bytes
(3 words)

I/O modules these are shown in the inspection window of the module.

2) Remote ready bit always occupies the address space of 2 bytes in the bit area (RX, RY) at the end of

the last station with 1 bit.

3) The system diagnostics (status bits and I/O diagnostic interface) occupies 16 I/Os (the first word)

in the word area of the first station (RWr, RWw).

Tab. 3.2 Configuration example for the CPX terminal depicted in Fig. 3.3 and Fig. 3.4

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 39

3 Commissioning as function module F24

Cycle-time-optimised assignment of I/O data

The following configuration arises from the address volume of the CPX terminal:
3 stations, single cycle time.

The figure (è Fig. 3.3) shows the distribution of module-specific I/O data in the CC-Link specific ad
dress ranges, and the arrangement and sequence of I/O data within these address ranges.

Inputs (RX, RWr)

D1000 D1005 … D1008

RX RY RWr RWw

1

2

3

Remote ready

X1000 … X1007 D1001 … D1004 X1008 … X100F

RX RY RWr RWw

1

2

3

Remote ready

Assigned address space Available address space

RX RY RWr RWw

1

2

3

Remote ready

RX RY RWr RWw

1

2

3

Remote ready

RX RY RWr RWw

1

2

3

Remote ready

8DI/8DO

2AO4AI 8DI

4A

I

System diagnostics

8DO

RX RY RWr RWw

1

2

3

Remote ready

D2000 Y1008 ... Y100F

Outputs (RY, RWw)

RX RY RWr RWw

1

2

3

Remote ready

Y1000 ... Y1007

Assigned address space

RX RY RWr RWw

1

2

3

Remote ready

D2001, D2002

Available address space

RX RY RWr RWw

1

2

3

Remote ready

X1000, Y1000, D1000, D2000… Exemplary representation of the CC-Link address assignment
(hexadecimal)

Fig. 3.3 Cycle-time-optimised addressing of the CPX terminal described in Tab. 3.2

40 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

3 Commissioning as function module F24

Station-optimised assignment of I/O data

The following configuration arises from the address volume of the CPX terminal:
1 Station, 4-fold cycle time.

The Figure (è Fig. 3.4) shows the distribution of module-specific I/O data in the CC-Link-specific ad
dress ranges and the arrangement and sequence of I/O data within these address ranges.

Inputs (RX, RWr) Assigned address space Available address space

D1000 D1005 … D1008X1000 … X1007 D1001 … D1004 X1008 … X100F

RX RY RWr RWw

1

Remote ready

2

3

4

RX RY RWr RWw

1

Remote ready

2

3

4

RX RY RWr RWw

1

Remote ready

2

3

4

RX RY RWr RWw

1

Remote ready

2

3

4

RX RY RWr RWw

1

Remote ready

2

3

4

8DI/8DO

2AO4AI 8DI

4AI

System diagnostics

RX RY RWr RWw

1

Remote ready

2

3

4

1

Remote ready

2

3

4

1

2

3

4

Remote ready

RX RY RWr RWwRX RY RWr RWwRX RY RWr RWw

1

Remote ready

2

3

4

Y1008 ... Y100FD2001, D2002Y1000 ... Y1007D2000

Outputs (RY, RWw) Assigned address space Available address space

X1000, Y1000, D1000, D2000… Exemplary representation of the CC-Link address assignment
(hexadecimal)

Fig. 3.4 Station-optimised addressing of the CPX terminal described in Tab. 3.2

8DO

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 41

3 Commissioning as function module F24

3.2.4 Address assignment after extension/conversion

If there is a change in the machine requirements, the CPX terminal can be adapted as required due to
its modular design.

Caution

If the CPX terminal is extended or converted at a later stage, input/output addresses
may be shifted. This applies in the following cases:
– Additional modules are inserted between existing modules.
– Existing modules are removed or replaced by other modules, which have fewer or

more input/output addresses.

– Interlinking blocks and/or pneumatic manifold blocks for monostable valves are

replaced by interlinking blocks/manifold blocks for bistable valves or vice versa
(è Pneumatics description).

– Additional interlinking blocks and/or manifold blocks are inserted between existing

ones.

– The configured addresses of the pneumatic interface are modified.

If the configuration of a CPX terminal has been changed, the necessary, new requirements for the CPX
terminal must be checked and the mapping optimisation set accordingly:
– Cycle-time-optimised, when a fast response time of the CPX terminal is required.
– Station-optimised, when a larger address space of the CPX terminal is required.

Moreover, it should be noted that the needed address space may increase due to modific
ation of the CPX terminal, and so the slave addresses of the following slaves in the field
bus must be checked and adjusted if necessary.

3.2.5 CC-Link memory mapping

Digital inputs and outputs (I/Os)

Digital I/Os occupy successively their corresponding address volume in the free address space of the
bit area (RX/RY) corresponding to the set mapping optimisation, cycle-time- or station-optimised
(è Section 3.2.3).

Analogue inputs and outputs

Analogue I/Os occupy successively their corresponding address volume in the free address space of
the word area (RWr/RWw) corresponding to the set mapping optimisation, cycle-time- or station-optim
ised (è Section 3.2.3).

Remote ready (RR, CC-Link-specific)

The remote ready bit is set to “1” by the bus node after successful initialization.
At each cycle-time optimisation, the last 2 bytes in the bit area (RX and RY) of the last station are re
served (è Fig. 3.1).
For station optimisation, the last 2 bytes in the bit area (RX and RY) of the immediately following free
cycle address space are reserved (è Fig. 3.2).
Bit 11 of the input section (RX) includes the remote ready bit.

42 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

3 Commissioning as function module F24

System diagnostics

The status bits and the I/O diagnostic interface of the system diagnostics occupy, if activated, the first
2 bytes, respectively, of the inputs and outputs of the word area of the 1st station (è e.g. Fig. 3.1).
The following table shows the assignment of the word area of the first station with an activated system
diagnostics.

System diagnostics (è CPX system description)

Slave > Master – RWr(n)0

1)

Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Signal: Q 2)Reserved Diagnostics data

When the control signal returns 0, the bits
0 ... 7 represents the status bit
(è Section 4.5.1)

Master > Slave – RWw(n)0

1)

Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Signal: S 2)Reserved Function number

1) n = assigned CC-Link slave address

2) Q = quitting bit; S = control bit

Tab. 3.3 System diagnostics: status bits and I/O diagnostics interface

Detailed information on system diagnostics is found in the CPX system description
(P.BE-CPX-SYS-…).

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 43

3 Commissioning as function module F24

3.2.6 Fieldbus configuration

Before a slave can be connected (e.g. bus node CPX-FB23-24) to the CC-Link master, various configura
tion settings must be made, e.g.:
– Number of connected slaves
– Number of stations to be connected to the system again during a scanning cycle
– Status if there is a CPU fault in the main computer
– Station data (settings of the slave):

– Station type (CPX-FB23-24: Remote device station)
– CC-Link slave address (1 … 64)
– Function module F24
– Protocol version CC-Link version 2.0 or 1.1 (è Note)

– Optimisation type: cycle-time- or station-optimised
The configuration settings are saved in the master station buffer memory. The settings can, for ex
ample, be set as follows (in some cases dependent on the master):
– With the GX Developer
– Through manual programming using PLC code

General information on the fieldbus CC-Link is found in the documentation for your CC­Link master and for the relevant control systems (e.g. from Mitsubishi).
An overview can be found under www.cc-link.org.

Note

In a configuration with single cycle setting (è Tab. 2.9) the bus node in the master must
be configured as CC-Link 1.1 slave.

44 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

3 Commissioning as function module F24

3.3 Parameterisation

Parameterisation of the CPX-Terminal with the bus node CPX-FB23-24 is possible with universal hand
held terminal (CPX-MMI) and also the PC software Festo Maintenance Tool (CPX-FMT) (è Tab. 3.4).

General information regarding operation of the handheld terminal and commissioning of
the CPX terminal with the handheld terminal is found in the description of handheld ter
minal.

The current version of the PC software CPX Festo Maintenance Tool (CPX-FMT) is found on
the Internet page of Festo (è www.festo.com).

For the operation of the PC software (CPX-FMT) on the bus node, you need the USB ad
apter (connecting cable), type NEFC-M12G5-0.3-U1G5.

Warning

The connected actuators can move unexpectedly!
Modification of the signal statuses and parameters with the MMI or CPX-FMT can trigger
dangerous movements of the connected actuators.
 Make sure that nobody is in the positioning range of connected actuators, and be

very careful with the parameterisation or manipulation of signal statuses.

 It is imperative that you observe the notes on “Force”, “Idle mode” and “Fail safe” in

the CPX system description (P.BE-CPX-SYS-…), in the description of the CPX-MMI and
in the online help of the CPX-FMT.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 45

3 Commissioning as function module F24

3.3.1 Parameters of the CPX terminal

You can set the behaviour of the CPX terminal as well as the behaviour of individual modules and chan
nels through parameterisation. A distinction is made between the following parameterisation types:
– System parameterisation, e.g. deactivating error messages etc.
– Module parameterisation (module- and channel-specific), e.g.: monitoring, settings in case of error,

settings for Forcing.

A description and function of individual parameters are found in the CPX system descrip
tion (P.BE-CPX-SYS-…).
Which module parameters are available for various CPX modules are found in the descrip
tion for the respective CPX module.

“System start” parameter

The “System start” parameter allows you to set and determine the starting behaviour of the CPX ter
minal.

As setting, select if possible “System start with saved parametrisation and CPX expan
sion”.
With this setting, all parameters and the current expansion of the CPX terminal are stored
in the bus node.
If individual modules of the CPX terminal in the service case are replaced, the set para
meters are still valid and no new parameterisation needs to be carried out. A system start
with the setting “System start with saved parametrisation and saved CPX expansion” can
take place.

The M-LED (Modify LED) lights up only for the setting “System start with saved paramet
erisation and CPX expansion”.

Caution

In case of a defect and replacement, saved settings are also lost. Therefore, the para
meterisation should be kept in the CPX-MMI or via CPX-FMT on a PC. It can be trans
ferred to the replacement bus node. Notes are found in the descriptions of CPX-MMI
and CPX-FMT.

If the CPX terminal is extended or modified (for example, another module is integrated),
the system start must occur with the setting “System start with default parameters and
the current CPX expansion”.
Subsequently, the startup parameters should be reset to “System start with saved para
meterisation and saved CPX expansion”, and the CPX terminal will now be reconfigured as
needed.

46 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

3 Commissioning as function module F24

3.3.2 Parameterisation concepts

The following table includes an overview of the options for parameterisation of the CPX terminal as well
as their advantages and disadvantages.

Method Description Advantages Disadvantages

Handheld
terminal
(CPX-MMI)

Parameterisation is
carried out via
menu-guided entries
with the handheld
terminal.

– Convenient

parameterisation via the
menu navigation (clear
text).

– Parameterisation can be

– Access via remote

maintenance is not
possible.

saved in the handheld

terminal.
Festo
Maintenance
Tool
(CPX-FMT)

Parameterisation via
PC software.

– Very convenient

parameterisation via PC

software with

supporting functions

– PC with connection to

the bus node is
necessary (via USB

1)

Ethernet

).

2)

or

– Parameterisation can be

saved on the PC.

– Remote maintenance

via Ethernet possible 1).
I/O
diagnostics
interface

Read-only access to
the current parameters
and data (è CPX

– The current parameter

setting can be checked

through the master.

– The parameters cannot

be modified.

– Complex programming.

system description).

1) Front end controller (FEC and/or CEC) in CPX terminal required

2) USB adapter (connecting cable), type NEFC-M12G5-0.3-U1G5 (è www.festo.com)

Tab. 3.4 Parameterisation

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 47

3 Commissioning as function module F24

3.4 Commissioning of the CPX terminal on the fieldbus

In order to avoid errors (e.g. configuration and parameterisation errors) during commissioning:
 Observe general commissioning instructions in the CPX system description (P.BE-CPX-SYS-…).
 Check the DIL switch settings before using and replacing CPX terminals.
 Check the address assignment of the I/Os on the CPX terminal.
 Check the configured address range and test the I/Os, if necessary.

3.4.1 HOLD/CLEAR and Fail Safe

The CPX terminal supports the CC-Link function HOLD/CLEAR. System-specific states of the digital out
puts can therefore be defined in the event of an error.
The reaction of digital outputs in case there is a fault is defined with the relevant DIL switch setting
(è Section 2.4.9).

3.4.2 RUN/PAUSE and STOP of the master

In the STOP mode of the CC-Link master (e.g. by interruption of communication), the status of the digit
al outputs in bit-field (RY) is dependent on the DIL switch setting HOLD/CLEAR.
The following table shows the behaviour according to CC-Link specifications:

CC-Link master status DIL switch setting

CLEAR HOLD

RUN/PAUSE Normal operation (refresh)
STOP The digital outputs (RY) are

reset (value: 0).

Tab. 3.5 RUN/PAUSE and STOP of the master

The digital outputs (RY) retain
their status.

Note

Analogue outputs (RWw) always keep their status regardless of the set HOLD/CLEAR
function .

3.4.3 RAS function

The CPX terminal supports the RAS functions (Reliability, Availability, Serviceability) of the fieldbus
CC-Link.

Functions for separating from slave stations

– Even if a decentralised or local station fails (e.g. voltage drop), the network operation will not be

impaired.

– A defective slave station can be replaced while the network is in operation (the voltage of the sta

tion to be replaced must be switched off).

– When a station is linked into the system again after a fault has been eliminated, it is not necessary

to reset the master station.

Monitoring the communication status

– The network can be monitored by the master station during system set-up, debugging or mainten

ance.

48 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

3 Commissioning as function module F24

3.5 Operation as function module F24 to CC-Link master version 1.1

For single cycle-time setting, the bus node uses the CC-Link version 1.1 to communicate with the mas
ter.
This allows the bus node to be operated, even in the configuration, as a function module F24 to a mas
ter which only supports CC-Link version 1.1.
Due to efficient use of the address space in the configuration as a function module F24 it may thus be
possible to achieve greater expansion of the CPX terminal to a CC-Link master version 1.1 than in the
configuration as a function module F23 (è Examples in section 3.2.3 and 5.3.1).
In addition, the bus node automatically determines the number of stations required.

For the address volume of the CPX terminal, the following conditions apply:
– For cycle-time-optimised mapping, the address volume of the CPX terminal, the address space of

4 stations for single cycle time may not be exceeded (è Section 2.4.8).

– For station-optimised mapping, the address volume of the CPX terminal, the address space of 1 sta

tion for single cycle time may not be exceeded (è Section 2.4.8).

Note

If through conversion or extension of the CPX terminal, the address space supported by
the CC-Link version 1.1 is exceeded, the bus node changes to CC-Link version 2.0. Com
munication with a V1.1 control is no longer possible.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 49

4 Diagnostics and error handling

4 Diagnostics and error handling

4.1 General instructions on diagnostics and error handling

The CPX terminal provides you with extensive and user-friendly possibilities for dia
gnostics and error handling (è Tab. 4.1).

Additional information on general diagnostics of the CPX terminal is found in the CPX
system description (P.BE-CPX-SYS-...).
Information on diagnostics of the pneumatics, of the pneumatic interface and of the I/O
module are found in the corresponding descriptions.

50 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

4 Diagnostics and error handling

4.2 Summary of diagnostics options

Depending on its configuration, the bus node CPX-FB23-24 supports various options for diagnostics
and error handling.

Diagnostics op
tion

LED indicator LEDs show configuration errors,

Status bits Internal inputs that supply coded

I/O diagnostics
interface

Diagnostics via
the handheld
terminal
(CPX-MMI)
Diagnostics via
the Festo
Maintenance
Tool (CPX-FMT)

Tab. 4.1 Diagnostics options

Brief description Advantages Detailed descrip

tion

hardware faults, bus errors, etc.
directly.

common diagnostic messages.
The 8 status bits are transmitted to
the interface as “inputs” cyclically
with the normal inputs.
The I/O diagnostics interface is a
fieldbus-independent diagnostics
interface at I/O level, which permits
access to internal data of the CPX
terminal (16 inputs and 16 outputs).

Diagnostic information can be shown
on the CPX-MMI in a user-friendly
and menu-driven manner.

The CPX-FMT offers the option to
display diagnostic information on a
PC.

Rapid detection of
errors “on-site”.

Fast access to error
messages,
independent of the
module and master.

Detailed error
detection: the
diagnostics data can
be processed further,
e.g. by a PLC user
program
Fast “on-the-spot”
error detection

Fast “on-site” error
detection. Diagnostics
also possible from a
higher automation
level.

è Section 4.4

è Section 4.5.1

and CPX system
description

è Section 4.5.2
and CPX system
description

è Description of
the CPX-MMI

è Online help for
the CPX-FMT

Note

Note that the diagnostic information is dependent on the DIL switch settings on the bus
node, (è Section 2.4.10) as well as on the parameterisation of the CPX terminal.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 51

4 Diagnostics and error handling

4.3 Error messages of the bus node CPX-FB23-24

In addition to the CPX-specific fault messages (è CPX system description, P.BE-CPX-SYS-…) the bus
node canCPX-FB23-24 report the following special errors:

Error
number

71 2 Fieldbus connection lost during

70 2 Only function module F23:

Tab. 4.2 Error numbers bus node CPX-FB23-24

Error
class

If the system boundary of the CPX terminal is exceeded by complex expansion of the max
imum possible address space, commissioning of the CPX terminal is not possible.
The error will be displayed on the bus node of the “SF LED”.

Operating status Error correction

Check the fieldbus connection.
operation
(timeout or no transmission)

Check the expansion of the CPX
Set number of stations too small

terminal and the number of stations

required and, if necessary, increase

the number of stations per slave by

means of the DIL switch

(è Section 5.2.2).

52 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

4 Diagnostics and error handling

4.4 Diagnostics via LEDs

LEDs for the diagnostics of the CPX terminal are available on the bus node as well as on the individual
modules.

The meaning of the LEDs on the electric modules can be found in the description for the
relevant module.

LEDs at the bus node CPX-FB23-24

The LEDs on the cover indicate the operating status of the CPX bus node.

RUN PS

PL

SFMSD

RD

RUN

SD

RD M

RUN

SD

RD M

PS

PL

SF

PS

PL

SF

1

2

1 CPX-specific LEDs:

– PS (green)
– PL (green)
– SF (red) *)
– M (yellow)

2 CC-Link-specific LEDs:

– RUN (green)
– ERROR (red)
– SD (yellow)

– RD (yellow)
*) The SF LED also shows CC-Link-specific faults
Fig. 4.1 LEDs on the CPX bus node CPX-FB23-24

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 53

4 Diagnostics and error handling

In this chapter, the LEDs are depicted in their various statuses as follows:
is illuminated; flashes; off

4.4.1 Standard operating status

In the standard operating status, all green LEDs are illuminated. The yellow LEDs light up or flash. The red
LEDs do not light up.

LED indicator

All green LEDs light up:

Operating status

Standard

–RUN

RUN

SD

PS

PL

SF

–PS
–PL
The red LEDs do not light up:
– ERROR
–SF
Yellow LEDs light up or flash (depending on the

RD M

data communication or configuration)
–SD
–RD
–M

54 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

4 Diagnostics and error handling

4.4.2 CPX-specific LEDs

PS (power system) – power sensor/logic supply
LED (green) Process Status Significance/error handling

ON
OFF

LED

No error. Operating
voltage/sensor supply
applied

–

illuminated

ON
OFF

LED flashing

ON
OFF

Operating voltage/sensor
supply outside the
tolerance range
Internal fuse for the
operating voltage/sensor
supply has responded

 Eliminate undervoltage

1. Eliminate short circuit/overload on
module side

2. Depends on the parameterisation
of the module (module
parameter):
– The sensor supply voltage will

be switched on again automat
ically after the short circuit has
been eliminated (default)

– Power OFF/ON required

ON
OFF

LED is not illu
minated

The operating
voltage/sensor supply is
not applied

 Check the operating voltage

connection of the electronics

PL (power load) – power load supply (outputs/valves)
LED (green) Process Status Significance/error handling

ON
OFF

No error. Load voltage
applied

–

LED
illuminated

ON
OFF

LED flashing

Load voltage at the system
supply or additional power
supply outside the

 Eliminate undervoltage

tolerance range

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 55

4 Diagnostics and error handling

SF (system failure) – system fault

ON
OFF

1)

Status Significance/error handling

No error –

LED (green) Process

LED not
illuminated

LED flashing

ON
OFF

ON
OFF

Simple error/information
(error class 1)
Error
(error class 2)

è Description of error numbers in the
CPX system description
è Description of error numbers in the
CPX system description
è Specific errors bus nodes
CPX-FB23-24, section 4.3

ON
OFF

1) The system fault LED flashes depending on the class of fault which has occurred.

Error class 1 (slight error): 1× flash, pause time

Error class 2 (error): 2× flashes, pause time

Error class 3 (severe error): 3× flashes, pause time

Serious error
(error class 3)

è Description of error numbers in the
CPX system description

M (modify) – parameterisation modified or Force active
LED (yellow) Process Status Significance/error handling

ON
OFF

LED not
illuminated

System start with default
parameterisation (factory
setting) and current CPX
expansion set; external

–

parameterisation is
possible (presetting)

ON
OFF

LED
illuminated

System start with saved
parameterisation and
saved CPX expansion has
been set;
Parameters and CPX
expansion are stored
permanently

For replacement of the bus node, or of
the CPX terminal in the service case,
parameterisation is not created
automatically by the higher-order
system (PLC/IPC).
 Save and apply the

parameterisation for a
replacement of the bus node.

ON
OFF

Force is active

1)

The Force function is enabled.

LED flashing

1) The display of the Force function (LED flashing) has priority over the display of the setting for the system start (LED illuminated).

56 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

4 Diagnostics and error handling

4.4.3 CC-Link-specific LEDs

RUN – data communication OK
LED (green) Process Status Significance/error handling

ON
OFF

No error. Data
communication OK

è Section 4.4.4

LED
illuminated

ON
OFF

LED not
illuminated

– Data communication

not yet started

– Data communication

faulty
– Timeout
– Hardware reset

ERROR - data communication faulty
LED (red) Process Status Significance/error handling

ON
OFF

Data communication faulty è Section 4.4.4

LED
illuminated

ON
OFF

CRC fault and data
communication fault

LED flashing

ON
OFF

LED not

No error. Data
communication OK

illuminated

SD – Send Data
LED (yellow) Process Status Significance/error handling

ON
OFF

CPX terminal sends data è Section 4.4.4

LED flashing

ON
OFF

LED not

CPX terminal does not
receive any data

illuminated

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 57

4 Diagnostics and error handling

RD – Receive Data
LED (yellow) Process Status Significance/error handling

ON
OFF

CPX terminal receives data è Section 4.4.4

LED
illuminated

ON
OFF

LED not

CPX terminal does not
receive any data

illuminated

4.4.4 Possible operating statuses of CC-Link-specific LEDs

LED status Significance
RUN ERROR SD RD

Normal communication, but frequent CRC faults
(e.g. due to interference/noise).
Setting of the baud rate or the station address has
been modified since the last fieldbus initialization.
The bus node cannot reply; the received data cause a
CRC fault.
Normal communication during the operation
(transmission and reception).
No data to the master.

Bus node replies to a request for data, but the
Refresh Reception caused a CRC fault.
Data for the master causes a CRC fault.

Connection initialization has failed.

Either no data to the master
or data for the slave cannot be received (e.g. due to
interference/noise)
No data reception possible, e.g. due to wire fracture,
power OFF/ON required.
Fault in baud rate and/or CC-Link slave address.

,

LED illuminated; LED flashing; LED not illuminated

Tab. 4.3 Overview CC-Link LEDs

58 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

4 Diagnostics and error handling

4.5 Diagnostics via fieldbus CC-Link

The CPX terminal enables diagnostics via the fieldbus. The following diagnostics options are supported
here:
– Status bits (system status)
– I/O diagnostics interface (system diagnostics)

4.5.1 Status bits

The status bits serve to display common diagnostic messages (global error message).
These status bits are treated like inputs and are transmitted to the master with the other inputs. They
can be queried there as “standard” inputs, linked and processed.
The status bits always occupy the first 8 input bits in the word area of station 1 (è Section 3.2.2).

Note

In order to use the I/O diagnostics interface, the system diagnostics must be activated
via the DIL switch on the bus node (è Section 2.4.10).
The information of the status bits is only available provided interrogation of the I/O
diagnostic interface is not active (control bit has 0-signal, è Tab. 3.3 or CPX system
description P.BE-CPX-SYS-…).

Bit Diagnostic information with logic 1 Description

0 Error at valve Module type in which an error has occurred
1 Error at output
2 Error at input
3 Error at analogue module/technology module
4 Undervoltage Error type
5 Short circuit/overload
6 Wire break
7 Other error

Tab. 4.4 Overview of status bits

If all status bits supply logic 0, no error will be reported.
If various errors occur simultaneously on different types of modules, these errors cannot be assigned
via the status bits. Errors can be uniquely defined via the I/O diagnostics interface, if needed.

Further instructions on the function and content of the status bits are found in the CPX
system description (P.BE-CPX-SYS-…).

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 59

4 Diagnostics and error handling

4.5.2 I/O diagnostics interface

Detailed diagnostics information can be accessed via the I/O diagnostics interface, e.g.:
– You can ascertain on which module and on which channel a fault has occurred.
– The last 40 fault messages are recorded and can be accessed (Diag. trace).
Available for accessing the system diagnostics are 16 input bits and 16 output bits, through which all
diagnostics data can be read.

Note

In order to use the I/O diagnostic interface, the system diagnostics must be activated
via the DIL switch on the bus node (è Section 2.4.10).

The status bits and the I/O diagnostic interface of the system diagnostics occupy, if activated, the first
2 bytes respectively of the inputs and outputs of the word range of the Station 1 (è e.g. Fig. 3.1).

Instructions on diagnostics with the I/O diagnostics interface are found in the CPX system
description (P.BE-CPX-SYS-…).

60 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

5 Function module F23

5 Function module F23

5.1 General instructions

Note

In this chapter, all the specific facts of the bus node CPX-FB23-24 are described in the
configuration for the function module F23 (CC-Link version 1.1).
The general information in chapters 2 to 4 valid for use for both configuration versions is
indicated with appropriate cross-references.

Note

Under certain conditions the bus node can be operated on a CC-Link master of version

1.1 also in the configuration as a function module F24 (CC-Link version 2.0).
For more information, see è Section 3.5.

5.2 Installation

The instructions and descriptions for installation in chapter 2 are valid also for the config
uration as function module F23, with the exception of sections 2.4.4 and 2.4.8.
Instead of them, the following sections are valid for function module F23:
– Section 5.2.1 instead of section 2.4.4
– Section 5.2.2 instead of section 2.4.8

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 61

5 Function module F23

5.2.1 Setting the operating mode

You set the operating mode of the bus node with the DIL switch element 1.1 of DIL switch 1.

Operating mode

Remote I/O operating mode

All functions of the CPX terminal are

Setting DIL switch 1

1.1: OFF

(factory setting)
controlled directly by the higher-order
PLC/IPC. The bus node undertakes the
required connection to CC-Link.

Remote controller operating mode

1.1: ON
An FEC or CEC integrated into the CPX
terminal controls all functions of the CPX
terminal, i.e. the FEC or CEC undertakes the
I/O control. The bus node undertakes,
if necessary, the additional connection to
CC-Link for supplementary functions
(e.g. interrogating of status information).

Tab. 5.1 Operating mode

Note

The setting of the operating mode with the DIL switch has priority over all other set
tings.

62 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

5 Function module F23

5.2.2 Setting the number of stations per slave / number of I/O bytes

Use the DIL switch elements 4.1 and 4.2 of the DIL switch 4 to set the number of
stations per slave or the number of I/O bytes of the bus node.
The function of this DIL switch is dependent on the set operating mode of the CPX
terminal (è Tab. 5.1).

Remote I/O operating mode Remote controller operating

Setting DIL switch 4

mode

Number of stations per slave Number of I/O bytes

1 station per slave 1 station per slave

With an FEC or CEC in the CPX

4.1: OFF

4.2: OFF
terminal, the bus node must be
operated as a remote control
ler and occupies 8 I/O bytes for
communication.

2 stations per slave Invalid 4.1: ON

4.2: OFF

3 stations per slave 4.1: OFF

4.2: ON

4 stations per slave 4.1: ON

4.2: ON

(factory setting)

Tab. 5.2 No. of stations per slave

With operating mode “Remote I/O” you can set the number of stations per slave with the DIL switches

4.1 and 4.2.
The required setting of the number of stations depends on the expansion of the CPX terminal (modules
used) as well as whether or not the I/O diagnostic interface is used (è Examples in section 5.3.1).
The assigned I/O bits are in some cases reserved for system functions and are therefore not available
for the address space of the CPX modules.
In the remote controller operating mode, DIL switches 4.1 and 4.2 must be set to “OFF”.
The bus node undertakes the connection to a CC-Link, if applicable for additional functions. For commu
nication of the bus node with an FEC integrated into the CPX terminal or CEC, 8 I/O bytes are assigned.
Further information on the number of stations per slave can be found in section 2.4.7.
Observe the general rules on addressing in the description for your CC-Link master.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 63

5 Function module F23

5.3 Commissioning

The instructions and descriptions for commissioning in the section 3.1 are also valid for
the function module F23.

Caution

For operation of the bus node CPX-FB23-24 as a function module F23 (CC-Link ver
sion 1.1), the DIL switch element 3.8 must be set to “OFF”. Observe the notes in sec
tion 2.4.6.

5.3.1 Configuration and addressing

Number of inputs/outputs

Note

– Note that the CPX terminal also provides I/Os for system diagnostics (status bits and

I/O diagnostics interface), depending on the setting of the DIL switches.

– For an active system diagnostics function, it occupies the first 16 inputs and outputs

of station 1 in the word area (RWr, RWw). The rest of the address space of the 1st
station in the word area is reserved.

– Providing no detailed diagnostic information is requested via the 16 outputs of the

I/O diagnostic interface, the first 8 inputs of the I/O diagnostics interface represent
the status bits.

– The maximum possible extension of the CPX terminal is defined by the maximum

number of modules and the set number of stations.

Detailed information on the electric and pneumatic modules are found in the Festo Sup
port Portal (è www.festo.com).

64 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

5 Function module F23

Addressing rules
I/O counting mode

– The address assignment of the inputs is independent of the address assignment of the outputs.
– The counting mode is independent of the position of the bus node in the CPX terminal.
– Counting from left to right, corresponding to the installation position in the CPX terminal and de

pendent on the module type.

– Digital I/Os, analogue I/Os and I/Os of technology modules occupy their address space, ascending

respectively without gaps in the corresponding address space.

– Digital I/Os, analogue I/Os and I/Os of technology modules occupy their own stations, ascending

respectively without gaps.

– The following I/Os are assigned separately from each other:

– Remote ready (RR, CC-Link-specific reserved, always lies in the last reserved station)
– Diagnostic I/Os (only if configured)
– Digital I/Os
– Analogue I/Os, I/Os of function modules

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 65

5 Function module F23

– The following table applies for the sequence of address assignment:

Address assignment (address type)

Area Addressing rules

1 Remote ready (RR) Bit area – The last 16 inputs and outputs

(2 byte each) in the bit area (RX, RY) of
the last assigned station are
CC-Link-specifically reserved.

2 System diagnostics mode

(status bits and I/O diagnostics
interface)

1)

3 Digital I/O modules, e.g.:

– CPX-4DE
– CPX-8DE
– CPX-4DA
– CPX-8DE-8DA

Word area – The system diagnostics occupy the first

16 inputs and outputs in the word area
(RWr, RWw) of station 1

1)

Bit area – Addresses are assigned in the free bit

area (RX/RY) of stations 1 to 4.

– Arrangement from left to right

corresponding to the address space, one
next to the other across the station limits

(ascending without gaps)
or
Pneumatic interfaces, e.g.:
– CPX-VMPA-…
– CPX-VPMPA-FB-…

or
Pneumatic modules, e.g.:
– VMPA1S-D…
– VMPA2S-D…

4 Analogue modules, e.g.:

– CPX-2AE-…
– CPX-2AA-…

2)

2)

Word area – Addresses are assigned in the word area

(RWr/RWw)

– The first module lies at a new station

address

5 Technology modules e.g.:

– CPX-FEC
– CPX-CEC-…
– CPX-CTEL-…
– CPX-CMAX-C1-2

– Addresses are assigned in the address

space after digital I/O modules and

pneumatic modules.

– Arrangement from left to right

corresponding to the address space one

next to the other

– Maximum 4 stations can be assigned

1) Only with activated system diagnostics

2) Type of electronic module included.

Tab. 5.3 I/O counting mode: addressing rules for the CPX modules

66 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

5 Function module F23

Number of assigned stations

Observe the following examples for determining the required number of stations and the
rules for addressing.

Depending on the number of selected stations per slave, a target/actual comparison is made of the
assigned address space in the starting phase of the bus node.
If the number of stations selected by means of DIL switches is less than the recognized periphery, the
SF LED on the bus node will flash (è Tab. 5.2).
If the recognized periphery, and thus the number of stations required, is less than the number of sta
tions selected using DIL switches, this is not interpreted as a fault, but is left to the decision of the user.

General examples – address allocation

The following diagrams show the address assignment of the inputs and outputs for various configura
tions of the CPX terminal when the bus node is operated as function module F23.

Digital I/O modules (≤ 16 I/O)

– 1 station
– I/O data in the bit

area

– System diagnostics

(optional)

Station 1

Bit area Word area

RX
Inputs

I15 … I0 O15 … O0 0 System diagnostics (16 I/O)

Remote ready (RR = bit 11) 1 Reserved Reserved

RY
Outputs

I: digital input
O: digital output

Fig. 5.1 CC-Link memory mapping (≤ 16 digital inputs and outputs)

RWr
Inputs

2 Reserved Reserved

3 Reserved Reserved

RWw
Outputs

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 67

5 Function module F23

Digital I/O modules (≤ 80 I/O)

– 3 stations
– I/O data in the bit

range

– System diagnostics

(optional)

Station 1

Bit area Word area

RX
Inputs

I15 … I0 O15 … O0 0 System diagnostics (16 I/O)

I31 … I16 O31 … O16 1 Reserved Reserved

RY
Outputs

I: digital input
O: digital output

Station 2

Station 3

I47 … I32 O47 … O32 0 Reserved Reserved

I63 … I48 O63 … O48 1 Reserved Reserved

I79 … I64 O79 … O64 0 Reserved Reserved

Remote ready (RR = bit 11) 1 Reserved Reserved

Fig. 5.2 CC-Link memory mapping (≤ 80 digital inputs and outputs)

Analogue I/O modules (≤16 AI / AO) without system diagnostics

– 1 to 4 stations:

1 : ≤ 4 AI / AO
2 : ≤ 8 AI / AO
3 : ≤ 12 AI / AO
4 : ≤ 16 AI / AO

Station 1

Bit area Word area

RX
Inputs

Reserved Control 0 AI0 AO0

Reserved Reserved 1 AI1 AO1

RY
Outputs

– Analogue I/O data in

the word range
– No system diagnostics
AI: analogue input

Station 2

Reserved Control 0 AI4 AO4

Reserved Reserved 1 AI5 AO5

AO: analogue output

RWr
Inputs

2 Reserved Reserved

3 Reserved Reserved

2 Reserved Reserved

3 Reserved Reserved

2 Reserved Reserved

3 Reserved Reserved

RWr
Inputs

2 AI2 AO2

3 AI3 AO3

2 AI6 AO6

3 AI7 AO7

RWw
Outputs

RWw
Outputs

Station 3

Station 4

Reserved Control 0 AI8 AO8

Reserved Reserved 1 AI9 AO9

2 AI10 AO10

3 AI11 AO11

Reserved Control 0 AI12 AO12

Remote ready (RR = bit 11) 1 AI13 AO13

2 AI14 AO14

3 AI15 AO15

Fig. 5.3 CC-Link memory mapping (≤ 16 analogue inputs and outputs)

68 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

5 Function module F23

Analogue I/O modules (≤ 12 AI / AO) with system diagnostics

– 2 to 4 stations:

2 : ≤ 4 AI / AO
3 : ≤ 8 AI / AO
4 : ≤ 12 AI / AO

– Analogue I/O data in

the word range

– With system

diagnostics
AI: analogue input
AO: analogue output

Station 1

Station 2

Station 3

Station 4

Bit area Word area

RX
Inputs

Reserved Control 0 System diagnostics (16 I/O)

Reserved Reserved 1 Reserved Reserved

Reserved Control 0 AI4 AO4

Reserved Reserved 1 AI5 AO5

Reserved Control 0 AI8 AO8

Reserved Reserved 1 AI9 AO9

Reserved Control 0 AI12 AO12

Remote ready (RR = bit 11) 1 AI13 AO13

RY
Outputs

RWr
Inputs

2 Reserved Reserved

3 Reserved Reserved

2 AI6 AO6

3 AI7 AO7

2 AI10 AO10

3 AI11 AO11

2 AI14 AO14

3 AI15 AO15

RWw
Outputs

Fig. 5.4 CC-Link memory mapping (≤ 12 analogue inputs and outputs)

Digital and analogue I/O modules (≤ 64 I/O and ≤ 8 AI / AO) with or without system diagnostics

– 4 stations
– Analogue I/O data in

the word range
– System diagnostics

(optional)
I: digital input
O: digital output
AI: analogue input
AO: analogue output

Station 1

Station 2

Station 3

Station 4

Bit area Word area

RX
Inputs

I15 … I0 O15 … O0 0 System diagnostics (16 I/O)

I31 … I16 O 31 … O16 1 Reser ved Reserved

I47 … I32 O47 … O32 0 Reserved Reserved

I63 … I48 O63 … O48 1 Reserved Reserved

Reserved Control 0 AI0 AO0

Reserved Reserved 1 AI1 AO1

Reserved Control 0 AI4 AO4

Remote ready (RR = bit 11) 1 AI5 AO5

RY
Outputs

RWr
Inputs

2 Reserved Reserved

3 Reserved Reserved

2 Reserved Reserved

3 Reserved Reserved

2 AI2 AO2

3 AI3 AO3

2 AI6 AO6

3 AI7 AO7

RWw
Outputs

Fig. 5.5 CC-Link memory mapping (≤ 64 digital and ≤ 8 analogue inputs and outputs)

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 69

5 Function module F23

Configuration example
Digital and analogue I/Os and MPA pneumatics

The following example describes a specific configuration of a CPX terminal with digital and analog I/O
modules and MPA pneumatics, and the resulting number of stations depending on the I/O data.

Electric modules Module

Mod.
No.

0 Bus node FB23-24 (F23)

with system diagnostics

identifier

FB23-RIO 2 byte 2)2 byte 2)8 byte

Assigned addresses

1)

RX RY RWr RWw

(4 words)

3)

8 byte

(4 words)
1 Digital 8-fold input module 8DI 1 byte – – –
2 Analogue 2-fold input module 2AI – – 4 bytes

–

(2 words)
3 Digital 8-fold input module 8DI 1 byte – – –
4 Analogue 2-fold output module 2AO – 2 bytes 4)– 4 bytes

(2 words)

5 MPA pneumatic module (type 32)

MPA1S – 1 byte – –

with galvanic isolation

6 MPA pneumatic module (type 32)

MPA1S – 1 byte – –
with galvanic isolation
Sum of the respective address ranges 4 bytes 6 bytes 12 bytes

(2 words)

1) Module identifiers on the Festo Maintenance Tool (CPX-FMT) or handheld terminal (CPX-MMI), for

12 bytes
(2 words)

I/O modules these are shown in the inspection window of the module.

2) Remote ready bit always occupies the address space of 2 bytes in the bit range (RX, RY) at the end

of the last station with 1 bit.

3) The system diagnostics (status bits and I/O diagnostic interface) occupies 16 I/Os (the first word)

in the word range of station 1 (RWr, RWw). The remaining words in the address space of Station 1
are reserved.

4) Analogue output modules occupy one control bit per output in the bit area of the assigned station

(RY). The remaining bits are reserved.

Tab. 5.4 Configuration for example terminal from Fig. 5.6

3)

4)

70 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

5 Function module F23

Inputs (RX, RWr)

D1000 … D1003

RX

RY RWr RWw

1

Reserved
Reserved
Reserved

2

Remote ready

X1000 … X1007

RX

1

2

Remote ready

Assigned address space

RY RWr RWw

D1004, D1005

RX

RY RWr RWw

1

Reserved

2

Remote ready

Available address space

X1008 … X100F

RX

RY RWr RWw

1

2

Remote ready

8 DI 2 AI 8 DI 2 AO

System diagnostics

8 O 8 O

RX

RY RWr RWw

1

2

Remote ready

D2000 … D2003

Reserved
Reserved
Reserved

RX

RY RWr RWw

1

Control

2

Remote ready

D2004, D2005

RX

RY RWr RWw

1

2

Remote ready

Y1000 … Y1007

RX

RY RWr RWw

1

2

Remote ready

Y1008 … Y100F

Y1020, Y1021

Outputs (RY, RWw)

Assigned address space

Available address space

X1000, Y1000, D1000, D2000… Example of representation of the CC-Link address assignment
(hexadecimal)

Fig. 5.6 Addressing within the CPX terminal in the example from Tab. 5.4

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 71

5 Function module F23

5.3.2 Address assignment after extension/conversion

If the machine requirements change, the CPX terminal can be adapted as required due to its modular
design.

Caution

If the CPX terminal is extended or converted at a later stage, input/output addresses
may be shifted. This applies in the following cases:
– Additional modules are inserted between existing modules.
– Existing modules are removed or replaced by other modules which have fewer or

more input/output addresses.

– Interlinking blocks and/or pneumatic manifold blocks for monostable valves are

replaced by interlinking blocks/manifold blocks for bistable valves or vice versa
(è Pneumatics description).

– Additional interlinking blocks and/or manifold blocks are inserted between existing

ones.

– The configured addresses of the pneumatics interface are modified.

If the configuration of a CPX terminal is changed, the required number of stations must be determined
and adjusted to correspond with the new address assignment (è Fig. 5.6).

Moreover, it should be noted that the needed address space may increase due to modific
ation of the CPX terminal and thus the slave addresses of the following slaves in the field
bus must be checked and adjusted, if necessary.

5.3.3 CC-Link memory mapping

Remote ready (RR, CC-Link-specific)

The remote ready bit is set to “1” by bus node after successful initialization. The address space of 2
bytes is always assigned with 1 bit in the bit range (RX, RY) at the end of the last station
(è e.g. Fig. 5.5).
Bit 11 of the input section (RX) includes the remote ready bit.

Digital inputs and outputs (I/Os)

If the first station is not occupied by analogue I/Os, digital I/Os occupy the bit range (RX/RY) from the
first station, one after the other (è Section 5.3.1).

72 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

5 Function module F23

Analogue inputs and outputs

If the first station is not occupied by system diagnostics or digital I/Os, analogue I/Os occupy the word
range (RWr/RWw) from the first station, one after the other (è Section 5.3.1).

Control bits for analogue outputs

Analogue outputs additionally occupy one control bit each in the bit area of the corresponding station.
The bit area of the stations used by the analogue outputs is reserved.
Analogue outputs can be activated or deactivated with the word “Control” in the bit area of the relevant
station (è Tab. 5.5). The following bits are used here:

Control

Slave > Master – RX(n+m)

Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Signal: Reserved

Master > Slave – RY(n+m)

Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Signal: Reserved S3 S2 S1 S0

S…: Enable/Disable channel 0, 1, 2, 3 (and/or 4, 5, 6, 7 or 8, 9, 10, 11 or 12, 13, 14, 15)

Control bit for the relevant analogue output. The relevant output is reset with a 0-signal.
n: assigned CC-Link slave address
m: 1st Station: m = 0

2nd Station: m = 2

3rd Station: m = 4

4th Station: m = 6
Tab. 5.5 Control

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 73

5 Function module F23

System diagnostics

The following tables show the assignment of the word area of the first station of the CPX terminal with
activated system diagnostics.

Slave > Master Master > Slave
Device no. Signal name Device no. Signal name

RWr(n)0 System diagnostics RWw(n)0 System diagnostics
RWr(n)1 Reserved RWw(n)1 Reserved
RWr(n)2 RWw(n)2
RWr(n)3 RWw(n)3

n: assigned address in memory mapping (master), depends on set station address
Tab. 5.6 System diagnostics: assignment

System diagnostics (è CPX system description)

Slave > Master – RWr(n)0

Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Signal: Q Reserved Diagnostics data

When the control signal returns 0, the bits
0 ... 7 represent the status bit
(è Section 4.5.1)

Master > Slave – RWw(n)0

Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Signal: S Reserved Function number

n: assigned CC-Link slave address
Q: acknowledgment bit; S = control bit

Tab. 5.7 System diagnostics: I/O diagnostics interface and status bits

74 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

5 Function module F23

5.3.4 Fieldbus configuration

Before a slave can be connected (e.g. bus node CPX-FB23-24) to the CC-Link master, various configura
tion settings must be made, e.g.:
– Number of connected slaves
– Number of stations to be connected to the system again during a scanning cycle
– Status in case of a CPU fault in the computer
– Station data (settings of the slave):

– Station type (CPX-FB23-24: remote device station)
– CC-Link slave address (1 … 64)
– Function module F23
– Protocol version CC-Link 1.1 (è Note)

– Number of stations occupied by the slave (1 ... 4).
The configuration settings are saved in the master station buffer memory. The settings can be set as
follows, for example (in some cases depending on the master):
– With the GX developer
– Through manual programming using PLC code

General information on the fieldbus CC-Link is found in the documentation for your
CC-Link master and for the relevant control systems (e.g. from Mitsubishi).
An overview can be found under www.cc-link.org.

Note

When operating as a function module F23 with a master of the CC-Link version 2.0, the
bus node must be configured in the master as CC-Link 1.1 slave.

5.4 Parameterisation

Parameters of the CPX terminal

For all the information you need for parameterisation of the CPX terminal, see 3.3.

5.5 Commissioning of the CPX terminal on the fieldbus

The instructions and descriptions for commissioning in the section 3.4.1 and 3.4.3 are
also valid for the function module F23.
The descriptions of the section 3.4.2 are to be replaced for the function module F23 by
section 5.5.1.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 75

5 Function module F23

5.5.1 RUN/PAUSE and STOP of the master

In the STOP mode of the CC-Link master (e.g. by interruption of communication), the status of the out
puts in the bit area (RY) and word area (RWw) is dependent on the DIL switch setting HOLD/CLEAR
(è Section 2.4.9).
The following table shows the reaction according to CC-Link specifications:

CC-Link master status

RUN/PAUSE Normal operation (Refresh)
STOP The outputs (RY/RWw) are reset. The outputs (RY/RWw) retain their

Tab. 5.8 RUN/PAUSE and STOP of the master

Note

With STOP, the enable bits of the analogue outputs (control) are set to 0.
The analogue outputs will then also be set.

DIL switch setting
CLEAR HOLD

status.

5.6 General notes on diagnostics and error handling

The instructions and descriptions for diagnostics and error handling in the sections 4.1
and 4.5.2 are also valid for the function module F23.

76 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

A Technical appendix

A Technical appendix

A.1 Technical data

General Function module

F24 F23

General technical data è CPX system description (P.BE-CPX-SYS-…)
Degree of protection according to EN 60529

– With fieldbus plug FBS-SUB-9-GS-2X4POL-B
– With manifold block FBA-1-KL-5POL or other

fieldbus plugs

Protection against electric shock

(protection against direct and indirect contact in
accordance with IEC/DIN 60204-1)

Module code (CPX-specific)

Remote I/O
Remote controller

Module identifiers (CPX-MMI-1, CPX-FMT)

Remote I/O
Remote controller

CPX terminal completely mounted, plug connector
in accordance with accessories plugged in or
equipped with cover cap
IP65/IP67 (mounted completely)
IP20

By means of PELV power circuit
(Protected Extra Low Voltage)

206
–

FB24-RIO
–

206
157

FB23-RIO
FB23-RC

Power supply

Operating voltage / load voltage è CPX system description

(P.BE-CPX-SYS-…)

Current consumption bus node CPX-FB23-24

Internal current consumption at 24 V (internal
electronics):
– from operating voltage supply for electronics/

sensors (U

Galvanic isolation

– between bus interface and CPX periphery

(power supplies)

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 77

EL/SEN

)

typ. 70 mA at 24 V (internal electronics)

Yes

A Technical appendix

Fieldbus

Status information

– Protocol
– Version
– CC-Link chip
– Vendor code
– Machine type

Transmission rates

CC-Link
Version 1.1 and 2.0
MFP3
0x0177
0x3C

156 kBd, 625 kBd, 2,5 MBd, 5 MBd, 10 MBd
(The maximum permitted fieldbus length de
pends on the baud rate used, è section 2.5.2)
Coupling and uncoupling during operation Yes (online-return function, slave station cut-off

function)

Cable type

– Reference cable (KURAMO ELECTRIC Co., Ltd.)
– Alternative (DYDEN Corporation)

Cable specification (è Section 2.5.1)

FANC-110SBH, 20 AWG × 3

CC-110, CC-110-5, CS-110, CM-110-5, 20 AWG × 3
– Alternative (LEONI protec cable Systems

GmbH)

– Terminating resistor

L45467-Y19-C15, 20 AWG × 3

110 Ω / 0.5 W

A.2 Default parameterisation

Note

The following tables contain an overview of parameters of the bus node. The current
and detailed description of all parameters of a CPX terminal are found in the CPX system
description (P.BE-CPX-SYS-…) as well as in the description of each CPX module.

System parameters Function no. Default setting

Monitoring

– Short circuit/overload in sensor supply (SCS)
– Short circuit/overload at the outputs (SCO)
– Undervoltage at the outputs (U
– Undervoltage at valves (U

VAL

)

OUT

)

– Short circuit at valves (SCV)

Force mode

4401

active
active
active
active
active

4402 blocked
Defines whether the Force function is blocked glob
ally or enabled.

System start

Defines the starting reaction of the CPX terminal.
Saves current parameter settings.

4402 System start with de

fault parameterisation
(factory setting) and
current CPX expansion.

Tab. A.1 System parameters

78 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

A Technical appendix

Diagnostic memory parameters Function no. Default setting

Entries remain up to Power OFF

Contents of the diagnostic memory will be deleted
after new Power ON.

Run/stop filter 1

Defines the saved errors.

Run/stop filter 2

Defines when the recording of errors is to be started
or stopped.

End of error filter

Defines whether current errors are to be recorded or
not.

Error number filter

Suppresses or exclusively records certain errors.

Module/channel filter

Exclusive recording of errors of a module or channel
(è function nos. 3485...3486).

Module number (MN)

Module number for the diagnostic memory filter

Channel number (CN)

Channel number for the diagnostic memory filter

Error number (FN)

Error number for the diagnostic memory filter

Tab. A.2 Diagnostic memory parameters

3480 active

3480 Saves the last 40

errors (overwrites old
entries)

3484 Run/Stop filter 2

inactive

3484 Record going errors

(error end) (filter
inactive)

3484 Error number filter

inactive

3484 Module/channel filter

inactive

3485 Module number 0

3486 Channel number 0

3487 Error number 0

A.3 Accessories

 Accessories are found in our online catalogue (è www.festo.com/catalogue) on the

Internet.

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 79

B Glossary

B Glossary

B.1 List of abbreviations

The following product-specific terms and abbreviations are used in this description:

Term/abbreviation

Address space The sum of available addresses, independent of the assignment.
Address volume The sum of the actually utilised user data.
AI Analogue input (input channel, 16 bits)
AO Analogue output (output channel, 16 bits)
Bus node Create the connection to certain networks and fieldbuses, conduct

CC-Link Control & Communication Link fieldbus system from Mitsubishi
CEC CoDeSys controller, e.g. CPX-CEC..., applicable for configuration,

CPX modules Collective term for the various modules which can be integrated into a

CPX system description
(P.BE-CPX-SYS-…)

CPX terminal Modular electrical terminal
Diagnostic data Detailed diagnostic information
DIL switches Dual-in-line switches consist of several switch elements with which

FEC Front-end controller, e.g. CPX-FEC, can be used as:

I Digital input
I/O diagnostics interface The I/O diagnostics interface is a bus-independent diagnostics interface

I/O modules Common term for the CPX modules which provide digital inputs and

I/Os Digital inputs and outputs
O Digital output
Parameter With the aid of parameterisation, the characteristics of the CPX terminal

PLC/IPC Programmable logic controller/industrial PC

Significance

control signals to the connected modules and monitor their functioning
capability.

commissioning and programming of various components and equipment
from Festo.

CPX terminal.
Description that gives an overview of structure, components, function,
installation and commissioning as well as basic information on
parameterisation of CPX terminals (è www.festo.com).

settings can be made.

– fieldbus slave (remote I/O operating mode)
– system controller (PLC, remote controller operating mode)
– stand-alone system controller (PLC, stand-alone operating mode)

at I/O level, permitting access to internal data of the CPX terminal.

outputs (CPX input modules and CPX output modules)

or the characteristics of the individual modules and I/O channels can be
adapted to each particular application. Parameters can be read and
modified.

80 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

B Glossary

Term/abbreviation Significance

Pneumatic interface The pneumatic interface is the interface between the modular electrical

peripherals and the pneumatics.

RWr/RWw Analogue input and output words (16 bits) in the word area of the CC-Link

memory mapping (register word read/register word write).

RX/RY Digital input and output data (bits) in the bit range of the CC-Link memory

mapping.
Status bits Internal inputs that supply coded common diagnostic messages.
Useful data volume Sum of the maximum possible dataset that can be occupied by digital and

analogue inputs and outputs, of CPX modules in the corresponding

address space of the bus node.

Tab. B.1 CPX-specific and/or CC-Link specific terms and abbreviations

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 81

CPX-FB23, CPX-FB23-24

Index

A

Abbreviations, Product-specific 80............

Addressing rules

– F24 35................................

– F23 65................................

B

Baud rate 16, 26..........................

Branch lines 27...........................

C

Cable, Fieldbus 25.........................

CC-Link memory mapping

– F24 42................................

– F23 72................................

CC-Link slave address, Set 18................

CLEAR 23................................

Configuration as F24 or F23 17...............

Configuration example 39...................

Connect

– Fieldbus 25, 28.........................

– Power supply 32........................

– Terminating resistor 28...................

CPX system description, P.BE-CPX-SYS-… 80....

F

Fieldbus baud rate 26......................

Fieldbus cable 25.........................

Fieldbus configuration

– F24 44................................

– F23 75................................

Fieldbus connection 31.....................

Fieldbus length 26.........................

Function module

– F24 6.................................

– F23 6.................................

H

HOLD/CLEAR 23..........................

I

I/O diagnostics interface 24.................

Intended use 7...........................

L

LEDs 53.................................

– CC-Link-specific 57......................

– CPX-specific 55.........................

– Normal operating status 54................

D

Diagnostics

– via CC-Link 59...........................

– via I/O diagnostics interface 60............

– via LEDs 53.............................

Diagnostics options, Overview 51............

DIL switches

– Layout 14..............................

– Set 14.................................

E

Examples of addressing

– F24 37................................

– F23 67................................

82 Festo – P.BE-CPX-FB23-24-EN – 1411b – English

M

Mapping optimisation 21...................

N

Notes on the documentation 6...............

Number of stations per slave 63..............

O

Operating mode 15, 62.....................

CPX-FB23, CPX-FB23-24

P

Parameterisation 45.......................

Parameterisation concepts

– Handheld terminal (CPX-MMI) 47...........

– Festo Maintenance Tool (CPX-FMT) 47.......

Pin allocation, Fieldbus interface 28...........

Power supply 32..........................

R

RAS 48..................................

RUN/PAUSE

– F24 48................................

– F23 76................................

S

Safety instructions, General 7...............

Screened connection 29, 30.................

Set

– Baud rate 16...........................

– CC-Link slave address 18..................

– Configuration as F24 or F23 17.............

– HOLD/CLEAR 23.........................

– I/O diagnostics interface 24...............

– Mapping optimisation 21.................

– Number of stations per slave 63............

– Operating mode 15, 62...................

– System diagnostics 24....................

Stations, Number 67.......................

Status bits 59............................

STOP

– F24 48................................

– F23 76................................

Strain relief 25............................

T

Technical data 77.........................

Terminating resistor 28, 31..................

Festo – P.BE-CPX-FB23-24-EN – 1411b – English 83

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tion of its contents to others without express authorization is
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registered.

Copyright:
Festo AG & Co. KG
Postfach
73726 Esslingen
Germany

Phone:
[phone]

Fax:
[phone]

e-mail:
[e-mail]

Internet:
www.festo.com

Original: de