background image

1 Intended use

The bus node type CTEU-EP is intended exclusively for use
as a participant in EtherNet/IP or Modbus TCP networks.
The bus node may only be used in its original status
without unauthorised modifications and only in perfect
technical condition.
The specified limit values must be observed here.
The product is intended for use in industrial environ­
ments. Outside of industrial environments, e.g. in com­
mercial and mixed-residential areas, actions to suppress
interference may have to be taken.

 Note

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Comply with the legal rules and regulations and
standards, rules of the testing organisations and
insurance companies and national specifications
applicable for the location.

 Note

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Detailed information on commissioning is provided in
the documentation for the higher-order control system.
Information on EtherNet/IP:

è

 www.odva.org

Information on ModbusTCP:

è

 www.modbus.org

Information about products from Festo:

è

 www.festo.com/sp

 Note

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

EtherNet/IP

®

, MODBUS

®

, ROCKWELLAUTOMATION

®

,

STUDIO5000

®

 are registered trademarks of the re­

spective trademark owners in certain countries.

For all available product documentation

è

 www.festo.com/pk

Training of specialized personnel

The product may only be commissioned by trained spe­
cialists in control and automation technology who are
familiar with:
– mounting, installation, operation and diagnostics of

control systems, networks and fieldbus systems

– the applicable regulations for accident prevention and

occupational safety

– the documentation for the product.

Service

Consult your local Festo repair service if you have any
technical problems.

2 Safety instructions

 Prior to any assembly or installation work, switch off

power supplies, disconnect the compressed air supply
and vent the pneumatics.

 For the electrical power supply, only use PELV circuits in

accordance with IEC60204-1/EN60204-1.

 Observe the handling specifications for electrostatically

sensitive devices.

 Use cover caps to seal unused connections to achieve

the required degree of protection.

 Always ensure that the connection technology being

used has the required degree of protection.

3 Ports and displays

3

4

1

2

1

Network connections (network ports TP1/TP2, field­
bus interface) 

è

 3.1

2

DIL switch (with transparent cover) 

è

 5.2

3

Status LEDs 

è

 3.2, 7

4

Power supply connection (X0) 

è

 3.1.

I-Port-interfaces

The I-Port interfaces (X1/X2) are located on the underside
of the bus node.

3.1

Ports

Power supply connection

1)

Pin allocation

1

24 V Operating voltage

Electronics/sensors
(Power System)

PS

U

EL/SEN

2

24 V Load voltage

Valves/outputs
(Power Load)

PL

U

VAL/OUT

3

0 V

Operating voltage

PS

U

EL/SEN

4

0 V

Load voltage

PL

U

VAL/OUT

5

FE

Functional earth
(Functional Earth) 

2)

FE

1) Plug connector M12, 5-pin, A-coded
2) Secure connection to functional earth over the connected

product 

è

 4.3 

è

 Potential equalisation

Network connections

1)

Pin allocation

TP1

 2)

TP2

 2)

1

TX+

RX+

2

RX+

TX+

3

TX–

RX–

4

RX–

TX–

Housing

Screening/functional earth
(Shield/Functional Earth) 

3)

TX = transmitted data, RX = received data
1) 2 sockets M12, 4-pin, D-coded; observe  installation  guidelines

and line specification 

è

 4.5

2) Pin activation with deactivated crossover detection
3) Secure connection to functional earth over the connected

product 

è

 4.3 

è

 Potential equalisation

3.2

Indicators

Status LEDs

1)

Significance

NS

PS

Status of the operating voltage supply (Power
System)

X1

Status of the internal communication between
the bus node and the connected product
“I-Port Device1” or “I-Port Device2”

2)

X2

NS

Network status

TP1

Connection status “Link1” or “Link2”

TP2

1) Additional information 

è

 7

2) Accessories with two I-Port interfaces required to connect two

products, e.g. the decentralised electrical connection box CAPC

è

 www.festo.com/catalogue

4 Mounting, dismantling, installation

 Warning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Uncontrolled movement of the actuators, loose tubing,
undefined switching statuses of the electronics

Injury caused by moving parts, damage to machine and to system
Before mounting and installation work:
 Switch off the power supply.
 Switch off compressed air supply.
 Vent the pneumatics.

4.1

Mounting the bus node

To mount the bus node, a product with I-Port interface is
required (“I-Port Device”), e.g. a valve terminal with I-Port
interface or the decentralised electrical connection box
CAPC.

 Note

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting of the bus node on the decentralised electric­
al connection box 

è

 CAPC assembly instructions

1. Check seal and sealing surfaces of the bus node and the

product with the I-Port interface. Replace damaged
parts.

2. Push the bus node onto the product carefully and

without tilting and press up to the stop.

3. Gently tighten down the self-tapping screws, using

existing threads.

4.Tighten the screws. Tightening torque: 0.7 Nm ± 10 %.

4.2

Dismantling the bus node

1. Unscrew the screws.
2. Pull the bus node off without tilting it.

4.3

Connecting the power supply

 Warning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electric voltage

Injury caused by electric shock, damage to machine
and to system
 For the electrical power supply, use only PELV circuits

in accordance with IEC60204-1/EN60204-1
(Protective Extra-Low Voltage, PELV).

 Observe the general requirements IEC60204-1/

EN60204-1 of the PELV power circuits.

 Use only voltage sources that ensure a reliable elec­

tric separation from the mains network in accordance
with IEC60204-1/EN60204-1.

 Always connect all circuits for operating and load

voltage supplies U

EL/SEN

 and U

VAL/OUT

.

Fuse protection

The bus node supplies operating and load voltage to the
connected products via the I-Port interfaces X1 and X2.
 Secure operating voltage U

EL/SEN

 and load voltage

U

VAL/OUT

 separately.

 Take due account of the current consumption of con­

nected products during design and protection of the
power supply.

 Observe power rating of the power supply (no bus

node-internal overload protection for the connected
products) 

è

 11.

 Ensure correct polarity (no bus node-internal reverse

polarity protection for the connected products).

Potential equalisation (earthing measures)

 Connect the functional earth (FE) connections of the

products connected via X1 and X2 to the earth potential
with a short conductor with the greatest possible cross
section (

4 mm

2

 Cu).

4.4

Check the power supply

 Note

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Functional testing

– The 

PS

 LED lights up when operating voltage is ap­

plied (within permitted range).

– The  LED 

X1

 or 

X2

 lights up green if a product with I-Port

interface is connected correctly (

è

 7).

4.5

Connecting to the network

Installation guidelines

 Warning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electric voltage

Injury caused by electric shock, damage to machine
and to system
 For the electrical power supply to 

all network parti­

cipants

 and other network components

(e.g.switches and routers), use only PELV circuits
IEC60204-1/EN60204-1.

 Note

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Data transmission errors

Malfunction
If installation has not been carried out correctly and
high transmission rates are used, data transmission
errors may occur, e.g. as a result of signal reflections
and attenuations.
 Connect screening to all network cables
 Wherever possible, only ground screening once (star-

shaped) to prevent ground loops

 Observe installation guidelines of the EtherNet/IP

user organisation (ODVA): 

è

 www.odva.org

è

 EtherNet/IP installation guidelines

 Observe port and cable specifications:

è

 EtherNet/IP installation guidelines

è

 Documentation on the control system

è

 3.1, tableof network connections

è

 Tableof line specifications

 Note

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unauthorised access

 to the product can cause damage

or malfunctions.
When connecting the product to a network:
 Protect the network from unauthorised access.
Measures for protecting the network include:
– Firewall
– Intrusion Prevention System (IPS)
– Network segmentation
– Virtual LAN (VLAN)
– Virtual Private Network (VPN)
– Security at a physical access level (port security).
Further information:

è

 Guidelines and standards for security in information

technology, e.g. IEC 62443, ISO/IEC 27001.
An access password protects only against accidental
changes.

Use of switches and routers

With use of the EtherNet/IP function “QuickConnect”:
 Use only switches and routers that support 

“QuickConnect”.

 Use only patch cable.

Use of crossover cables

When using patch cables and crossover cables in the
same network:
 Ensure that the crossover detection “Auto-MDI/MDI-X”

is activated in the control system 

è

 Deactivate EtherNet/IP function “QuickConnect”

è

 5.8.

Cable specification

Cable

Ethernet twisted pair cable, shielded
(Shielded Twisted Pair, STP)

Transmission class
(Link Class)

Category 5

Cable diameter

1)

6 ... 8 mm

Wire cross section

0.14 ... 0.75 mm

2

; 22 AWG required for max.

connection length between network parti­
cipants (End-to-end-Link)

Connection length

2)

Max. 100 m End-to-end-Link

1) When using plug NECU­M­S­D12G4­C2­ET
2) Corresponding to the specification for EtherNet/IP networks

(EtherNet/I P installation guideline) 

è

 www.odva.org

Strain relief

When mounting on a moving part of a machine:
 Provide the network cable with strain relief.

4.6

Ensuring the degree of protection

 Note

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Short circuit

Malfunction or damage to the electronics
 Use connection technology (interconnecting cables,

push-in connectors, adapters) with the required
degree of protection, e.g. plug connector 
NECU-M-S-D12G4-C2-ET.

 Use cover caps to seal unused connections, e.g. cover

cap ISK-M12 

è

 Accessories

 Mount cover of the DIL switches: Check seal, place

cover and push it down, tighten screws. Tightening
torque: 0.4 Nm ± 20 %.

 Do 

not

 remove sealing plug from underside of bus

node.

 Only when mounting the bus node on the decentral­

ised electrical connection box 

CAPC

: Replace sealing

plug on underside of the bus node 

è

 Assembly

instructions CAPC.

5 Commissioning, configuration and parameterisation

Commissioning, configuration and parameterisation of
the bus node depends on the higher-order control sys­
tem. The basic approach and required configuration data
are explained in the following sections.

 Warning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Uncontrolled movement of the actuators, loose tubing,
undefined switching statuses of the electronics

Injury caused by moving parts, damage to machine and to system

 Before commissioning, ensure that the connected

products do not perform any uncontrolled move­
ments.

 Observe commissioning notices in the control system

documentation.

No automatic checking of configuration and parame­
terisation: The bus node and the connected products
also go into operation if configuration is incorrect.

5.1

Switch on the power supply

If the control system and network participants have sep­
arate voltage supplies, the following sequence is recom­
mended for switch-on:
1. Switch on the power supply to all network participants.
2. Switch on power supply to control system.

5.2

Setting the DIL switch

1. Setting IP address 

è

 5.3.

2. Perform additional settings 

è

 Table, item

3

...

5

.

1

3

4

5

2

Item DIL switch 

1)

Function

ON

OFF

DIL switch 1:

1

1 ... 6: Host ID of the IP address, bit 0 ... 5 

2)

DIL switch 2:

1

1 ... 2: Host ID of the IP address bit 6 and 7 

2)

2

3: Reserved

3

4: Network protocol

ModbusTCP

EtherNet/I P

3)

4

5: Status bytes

è

 5.5 

è

 Table

“Connection Para­
meters”

Status informa­
tion in the input
image

No status inform­
ation in the input
image

3)

5

6: Behaviour in case

of communication
errors and for
control in the
Idle-Mode

All outputs re­
tain their last
switching status

All outputs are
reset

3)

1) Switch setting “ON” = ON, switch is to the left or on top

switch setting “OFF” = OFF, switch is to the right or underneath

2) Binary coding in ascending order from left to right 2

0

, 2

1

, 2

2

, …

3) Factory setting

5.3

Setting IP address

è

 Documentation of the control system

 Note

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 Observe the basic addressing rules for the allocation

of the IP address, e.g. with respect to the use of
private or public address ranges.

 Check that the IP address can be used in the automa­

tion network.

 Ensure that there is no duplication of IP addresses in

use.

 Use DIL switches 

1

 for setting the addressing type or

for setting the host ID of the bus node.

The change of IP addressing in the bus node re­
quires a corresponding update in the higher-or­
der control system.

Examples

Host ID = 05

Host ID = 38

1

2

3

4

5

6

1

2

1

2

1

2

3

4

5

6

2

0

 + 2

2

 = 1 + 4 = 5

Set IP address: 
192.168.1.

005

2

1

 + 2

2

 + 2

5

 = 2 + 4 + 32 = 38

Set IP address: 
192.168.1.

038

Dynamic addressing

1. Make sure there is a DHCP server (e.g. BOOTP DHCP

server from Rockwell Automation) in the network.

2. Set all switch elements for address setting DIL1 (1...6)

and DIL2 (1...2) to “OFF”.

3. With Festo Field Device Tool (FFT) or EtherNet/IP

Object, activate the “DHCP” option.

4.Switch bus node off and back on.

Saved addressing

1. Set all switch elements for address setting DIL1 (1...6)

and DIL2 (1...2) to “OFF”.

2. Set the IP address with the Festo Field Device Tool (FFT)

or EtherNet/IP Object.

3. Switch bus node off and back on.

Static addressing

1. Set the first three octets of the IP address with the

Festo Field Device Tool (FFT) or EtherNet/IP Object.

2. With all switch elements for address setting DIL1(1...6)

and DIL2(1...2), set the fourth octet (Host-ID) of the IP
address.

3. Switch bus node off and back on.

Operating instructions
Original instructions
Network protocol EtherNet/IP or
Modbus TCP

Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com

8067817 [8067819]

1702a

Bus node
CTEU-EP

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