Phoenix Contact IL ETH BK DI8 DO4 2TX-PAC User manual

1Description
Inline, bus coupler, Modbus/TCP (UDP),
digital inputs: 8, 24 V DC,
digital outputs: 4, 24 V DC, 500 mA
IL ETH BK DI8 DO4 2TX-PAC
© PHOENIX CONTACT
Data sheet
The bus coupler with integrated I/Os is intended for use
within a Modbus/TCP(UDP) network and represents the
link to the Inline I/O system.
Up to 61 Inline devices can be connected to the bus coupler.
The bus coupler supports a maximum of 16PCP devices.
Features
– 2 Ethernet ports (with integrated switch)
– Auto negotiation
– Autocrossing
– Transmission speed of 10 Mbps and 100 Mbps
– Automatic detection of the transmission speed in the
local bus (500kbps or 2Mbps)
–Eightdigital inputs, fourdigital outputs (on-board)
– Data exchange via OPC server supported
– Software interfaces for access via TCP/IP: Device
Driver Interface (DDI) and High-Level Language
Fieldbus Interface (HFI)
– Web-based management
WARNING: Explosion hazard when used in potentially explosive areas
When using the terminal in potentially explosive areas, observe the corresponding notes.
This data sheet is only valid in association with the ILSYSINSTUME user manual.
Make sure you always use the latest documentation.
It can be downloaded at: phoenixcontact.net/product/2703981
7275_en_09 2020-02-26

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2Tableofcontents
1 Description .............................................................................................................................. 1
2 Table of contents ..................................................................................................................... 2
3 Ordering data .......................................................................................................................... 3
4 Technical data ......................................................................................................................... 5
5 Internal circuit diagram ............................................................................................................ 9
6 Notes on using the terminal block in potentially explosive areas ........................................... 10
7 Safety note ............................................................................................................................ 10
8 Connecting Ethernet, the supply, actuators, and sensors...................................................... 11
9 Connection example.............................................................................................................. 12
10 Local diagnostic and status indicators................................................................................... 13
11 Reset button .......................................................................................................................... 15
12 Startup................................................................................................................................... 16
13 Startup behavior of the bus coupler ....................................................................................... 16
14 Monitoring.............................................................................................................................. 19
15 Modbus protocols and registers ............................................................................................ 21
16 Special registers.................................................................................................................... 27
17 DDI: Device Driver Interface ..................................................................................................31
18 HFI: High-Level Language Fieldbus Interface........................................................................ 35
19 WBM: Web-based management ........................................................................................... 35
20 Firmware update.................................................................................................................... 35
21 Process data access via XML................................................................................................ 35
22 SNMP: Simple Network Management Protocol ..................................................................... 37

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Description Ty p e Order No. Pcs./Pkt.
Inline, Bus coupler, Modbus/TCP(UDP), RJ45 socket,
digital inputs: 8, 24 VDC, connection method: 3-wire,
digital outputs:4, 24 VDC, 500 mA, connection
method:3-wire, transmission speed in the local bus:
500 kbps / 2 Mbps, degree of protection:IP20, including
Inline connectors and marking fields
IL ETH BK DI8 DO4 2TX-PAC 2703981 1
3Orderingdata
Accessories Ty p e Order No. Pcs./Pkt.
Quick mounting end clamp for NS 35/7,5 DIN rail or NS 35/
15 DIN rail, with marking option, width: 9.5 mm, color: gray
(Mounting)
CLIPFIX 35 3022218 50
End clamp, width:9.5 mm, height:35.3 mm, material:PA,
length:50.5 mm, Mounting on a DIN rail NS 32 or NS 35,
color:gray (Mounting)
E/UK 1201442 50
Insert strip, Sheet, white, unlabeled, can be labeled with:
Office printing systems: Laser printer, mounting type:
insert, lettering field size: 62 x 46 mm, Number of
individual labels: 120 (Marking)
ESL 62X46 0809502 5
Labeling field, width: 48.8 mm (Marking) IB IL FIELD 8 2727515 10
Insert strip, Sheet, white, unlabeled, can be labeled with:
Office printing systems: Laser printer, mounting type:
insert, lettering field size: 62 x 10 mm, Number of
individual labels: 72 (Marking)
ESL 62X10 0809492 1
Labeling field, width: 12.2 mm (Marking) IB IL FIELD 2 2727501 10
RJ45 connector, shielded, with bend protection sleeve,
2 pieces, gray for straight cables, for assembly on site. For
connections that are not crossed, it is recommended that
you use the connector set with gray bend protection
sleeve. (Connector/Adapter)
FL PLUG RJ45 GR/2 2744856 1
RJ45 connector, shielded, with bend protection sleeve,
2 pieces, green for crossed cables, for assembly on site.
For connections that are crossed, it is recommended that
the connector set with green bend protection sleeves is
used. (Connector/Adapter)
FL PLUG RJ45 GN/2 2744571 1
CAT5-SF/UTP cable (J-02YS(ST)C HP 2 x 2 x 24 AWG),
heavy-duty installation cable, 2 x 2 x 0.22 mm², solid
conductor, shielded, outer sheath: 7.8 mm diameter, inner
sheath: 5.75 mm ± 0.15 mm diameter (Cable/conductor)
FL CAT5 HEAVY 2744814 1
CAT5-SF/UTP cable (J-LI02YS(ST)C H 2 x 2 x 26 AWG),
light-duty, flexible installation cable 2 x 2 x 0.14 mm²,
stranded, shielded, outer sheath: 5.75 mm ± 0.15 mm
diameter (Cable/conductor)
FL CAT5 FLEX 2744830 1

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Crimping pliers, for assembling the RJ45 plugs FL PLUG
RJ45..., for assembly on site (Tools)
FL CRIMPTOOL 2744869 1
Connector set, for Inline bus coupler with I/Os mounted in
rows (Connector/Adapter)
IL BKDIO-PLSET 2878599 1
IPAssign is an easy to use tool for setting the IP address of
devices which rely on BOOTP. No installation or
administrative rights are required to use IPAssign.
This product is free and only available from the
"Downloads" tab.
IPASSIGN 2701094 1
Accessories Ty p e Order No. Pcs./Pkt.
Documentation Ty p e Order No. Pcs./Pkt.
User manual, English, Automation terminals of the Inline
product range
IL SYS INST UM E - -
Application note, German/English, I/O modules at bus
couplers
AH IL BK IO LIST - -
Application note, English, Inline terminals for use in zone2
potentially explosive areas
AH EN IL EX ZONE 2 - -
User manual, English, for drivers for G4-based controller
boards, only available as a download.
IBS PC SC SWD UM E 2745172 1
User manual, English, for firmware messages of
Generation 4 controller boards, only available as a
download.
IBS SYS FW G4 UM E 2745185 1
User manual, English, for the Peripherals Communication
Protocol (PCP), only available as a download.
IBS SYS PCP G4 UM E 2745169 1
Quick start guide, English, high-level language
programming with HFI user interface
UM QS EN HFI PROG - -
Application note, English, Measures to protect network-
capable devices with Ethernet connection against
unauthorized access
AHENINDUSTRIAL
SECURITY
- -
Additional ordering data
For more ordering data (accessories), visit phoenixcontact.net and look at the product catalogs.
Media converters for conversion and transmission of data via fiber-optic cables (see "Automation" catalog)
Power supplies for the bus coupler (see the "Power supplies, surge protection and device circuit breakers" catalog)

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Dimensions (nominal sizes in mm)
Width 80 mm
Height 119.8 mm
Depth 71.5 mm
Note on dimensions Specfications with connectors
4 Technical data
119,8
71,5
General data
Color green
Weight 375 g (with connectors)
Ambient temperature (operation) -25 °C ... 55 °C
Ambient temperature (storage/transport) -40 °C ... 85 °C
Permissible humidity (operation) 10 % ... 95 % (non-condensing)
Permissible humidity (storage/transport) 10 % ... 95 % (non-condensing)
Air pressure (operation) 70 kPa ... 106 kPa (up to 3000m above sea level)
Air pressure (storage/transport) 70 kPa ... 106 kPa (up to 3000m above sea level)
Degree of protection IP20
Protection class III (IEC61140, EN61140, VDE0140-1)
Connection data: Inline connector
Connection method Spring-cage connection
Conductor cross section solid / stranded 0.08 mm² ... 1.5 mm² / 0.08 mm² ... 1.5 mm²
Conductor cross section [AWG] 28 ... 16
Stripping length 8 mm
Connection data for UL approvals: Inline connector
Connection method Spring-cage connection
Conductor cross section solid / stranded 0.2 mm² ... 1.5 mm² / 0.2 mm² ... 1.5 mm²
Conductor cross section [AWG] 24 ... 16
Stripping length 8 mm

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Interface: Modbus/TCP (UDP)
Number 2
Connection method RJ45 socket
Note on the connection method Auto negotiation and autocrossing
Transmission speed 10/100 Mbps
Transmission physics Ethernet in RJ45 twisted pair
Interface: Inline local bus
Connection method Inline data jumper
Transmission speed 500 kbps / 2 Mbps (automatic detection, no combined system)
System limits of the bus coupler
Number of local bus devices that can be connected max. 61 (The on-board I/Os are two devices)
Number of devices with parameter channel max. 16
Observe the logic current consumption of each device when configuring an Inline station! It is specified in every
terminal-specific data sheet. The current consumption can differ depending on the individual terminal. The
permissible number of devices that can be connected therefore depends on the specific station structure.
Bus coupler supply UBC; Communications power UL(7.5V) and the analog supply UANA (24 V) are generated
from the bus coupler supply.
Supply voltage 24 VDC (via Inline connector)
Supply voltage range 19.2 VDC ... 30 VDC (including all tolerances, including ripple)
Current consumption min. 80 mA (without connected I/O terminal blocks)
max. 0.98 A (with max. number of connected I/O terminal
blocks)
Cable length max. 30 m (do not route cable through outdoor areas)
Communications power (UL)
Supply voltage 7.5 VDC
Power supply unit max. 0.8 A DC
Supply of analog modules (UANA)
Supply voltage 24 VDC
Supply voltage range 19.2 VDC ... 30 VDC (including all tolerances, including ripple)
Power supply unit max. 0.5 A DC
Main circuit supply (UM)
Supply voltage 24 VDC (via Inline connector)
Supply voltage range 19.2 VDC ... 30 VDC (including all tolerances, including ripple)
Power supply unit max. 8 A DC (Sum of UM + US; 4A, maximum, when used in
potentially explosive areas.)
Current consumption min. 3 mA (without sensors)
max. 8 A DC
Cable length max. 30 m (do not route cable through outdoor areas)

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Segment circuit supply (US)
Supply voltage 24 VDC (via Inline connector)
Supply voltage range 19.2 VDC ... 30 VDC (including all tolerances, including ripple)
Power supply unit max. 8 A DC (Sum of UM + US; 4A, maximum, when used in
potentially explosive areas.)
Current consumption min. 3 mA (without actuators)
max. 8 A DC
Cable length max. 30 m (do not route cable through outdoor areas)
Power consumption
Power consumption typ. 3 W (entire device)
Protective circuit
Surge protection (segment supply, main supply, bus
coupler supply)
Suppressor diode, 35 V DC
Reverse polarity protection (segment supply, main supply,
bus coupler supply)
Suppressor diode, 35 V DC
Protection
NOTE: Electronics may be damaged when overloaded
Provide external protection for the 24V areas UBK, UM, and US. If you are using an external fuse, the power
supply unit must be able to supply four times the nominal current of the fuse. This ensures that it trips in the
event of an error.
Digital inputs
Number of inputs 8
Connection method Inline connector
Connection technology 3-wire
Description of the input EN 61131-2 type 1
Nominal input voltage 24 VDC
Nominal input current typ. 3 mA
Current flow Limited to 3mA, maximum
Input voltage range "0" signal -30 VDC ... 5 VDC
Input voltage range "1" signal 15 VDC ... 30 VDC
Delay at signal change from 0 to 1 typ. 1.2 ms
Delay at signal change from 1 to 0 typ. 1.2 ms
Permissible conductor length to the sensor 100 m
Reverse polarity protection Suppressor diode
Digital outputs
Number of outputs 4
Connection method Inline connector
Connection technology 3-wire
Nominal output voltage 24 VDC
Voltage difference with nominal current < 1 V
Maximum output current per channel 500 mA

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Maximum output current per device 2 A
Nominal load, ohmic 12 W
Nominal load, inductive 12 VA (1.2 H, 48 Ω)
Nominal load, lamp 12 W
Signal delay typ. 1.2 ms
Maximum operating frequency with inductive nominal
load
0.5 Hz (1.2 H, 48 Ω)
Behavior at voltage switch-off The output follows the power supply without delay
Limitation of the voltage induced on circuit interruption approx. -30 V
Output current when switched off max. 10 µA (When not loaded, a voltage can be measured
even at an output that is not set.)
Behavior with overload Auto restart
Behavior with inductive overload Output can be destroyed
Reverse voltage resistance to short pulses Reverse voltage proof
Resistance to permanent reverse voltage max. 2 A
Overcurrent shut-down min. 0.7 A
Short-circuit and overload protection Freewheeling circuit in the output driver
Digital outputs
Error messages to the higher level control or computer system
Short-circuit or overload of the digital outputs Yes
Sensor supply failure Yes
Failure of the actuator supply Yes
Mechanical tests
Vibration resistance in acc. with EN60068-2-6/
IEC60068-2-6
5g
Shock in acc. with EN60068-2-27/IEC60068-2-27 Operation: 25g, 11 ms duration, semi-sinusoidal shock impulse
Conformance with EMC Directive 2014/30/EU
Noise immunity test in accordance with EN 61000-6-2
Electrostatic discharge (ESD) EN61000-4-2/
IEC61000-4-2
Criterion B, 6 kV contact discharge, 8 kV air discharge
Electromagnetic fields EN61000-4-3/IEC61000-4-3 Criterion A, Field intensity: 10 V/m
Fast transients (burst) EN61000-4-4/IEC61000-4-4 Criterion A, all interfaces 1 kV
Criterion B, all interfaces 2 kV
Transient overvoltage (surge) EN61000-4-5/
IEC61000-4-5
Criterion B, supply lines DC: 0.5 kV/0.5 kV (symmetrical/
asymmetrical), fieldbus cable shield 1 kV
Conducted interference EN61000-4-6/IEC61000-4-6 Criterion A, Test voltage 10 V
Noise emission test as per EN 61000-6-4 Class A
Approvals
For the latest approvals, please visit phoenixcontact.net/products.

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5 Internal circuit diagram
Figure 1 Internal wiring of the terminal points
Key:
The gray areas in the basic circuit diagram represent the
electrically isolated areas:
8x DI
4x
DO
PWR
C
DI1...8
U
S
U
BK
U
M
DO1...4
US
UM
UL+
UANA
µP
24V
24V
24V
7,5V
IB
B
A
2 TX ETH
UL-
Local bus
ACT1/2
LNK1/2
BO UL UMUS
RY CONFPP
Microprocessor
Protocol chip
Optocoupler
Ethernet Switch
PNP transistor
Transmitter with electrical isolation
LED
µP
IB
Power supply unit
Electrically isolated area
A Ethernet interface
BLogic
C I/O devices
Please refer to the ILSYSINSTUME user
manual for an explanation of other symbols
used.

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6 Notes on using the terminal block
in potentially explosive areas
Approval according to ATEX Directive 2014/34/EU
II 3 G Ex nA IIC T4 Gc X
Installation notes
The category 3 device is designed for installation in zone 2
potentially explosive areas.
The device meets the requirements of EN60079-0:2012 +
A11:2013 and EN60079-15:2010.
•Observe the specified conditions for use in potentially
explosive areas.
•At the time of installation, use an approved housing
(minimum protection IP54), which meets the
requirements of EN 60079-15. Within this context,
observe the requirements of IEC 60079-14/EN 60079-
14.
•The following work is only permitted in potentially
explosive areas when the power is disconnected:
•Connect the DIN rail to the protective earth ground.
•For reliable operation, the RJ45 plug needs to have a
fully functioning locking clip. Repair any damaged plugs
immediately.
•Only devices that are designed for operation in Ex Zone
2 and the conditions at the installation location may be
connected to the circuits in Zone 2.
•Make sure that the maximum permissible current of 4A
flowing through potential jumpers UMand US(total
current) is not exceeded.
•When using the device in potentially explosive areas,
observe the specifications in the application note
AHDEILEXZONE2 (German) / AHENILEXZONE2
(English).
7Safetynote
If possible, deactivate unused communication channels.
Assign passwords such that third-parties cannot access the
bus coupler and make changes without authorization.
Due to its communication interfaces, the bus coupler should
not be used in safety-critical applications without additional
security appliances.
Therefore, please take additional protective measures in
accordance with the IT security requirements and the
standards applicable to your application (e.g.virtual
networks (VPN) for remote maintenance access, firewalls,
etc.) for protection against unauthorized network access.
On first request, you shall release PhoenixContact and the
companies associated with
PhoenixContactGmbH&Co.KG, Flachsmarktstrasse8,
32825Blomberg in accordance with §§15ff.AktG (German
Stock Corporation Act), hereinafter collectively referred to
as "Phoenix Contact",
from all third-party claims made due to improper use.
For the protection of networks for remote maintenance via
VPN, PhoenixContact offers the mGuard product series as
security appliances; these are described in the latest
PhoenixContact catalog (phoenixcontact.net/products).
Additional measures for protection against unauthorized
network access can be found in the
AHENINDUSTRIALSECURITY application note. The
application note can be downloaded at phoenixcontact.net/
products.
WARNING: Explosion hazard
Please make sure that the following notes and
instructions are observed.
- Snapping the device onto the DIN rail
- Removing the device from the DIN rail
- Connection and disconnection of cables
NOTE: Risk of unauthorized network
access
Connecting devices to a network via Ethernet
entails the danger of unauthorized access to
the network.
To prevent unauthorized network access,
please read the following notes.