turck BL20 User manual

BL20 –
USER MANUAL
FOR
ETHERNET/IP

All brand and product names are trademarks or registered trade
marks of the owner concerned.
Version 1.0,edition 11/06
© Hans Turck GmbH, Mülheim an der Ruhr
All rights reserved, including those of the translation.
No part of this manual may be reproduced in any form (printed,
photocopy, microfilm or any other process) or processed, dupli-
cated or distributed by means of electronic systems without written
permission of Hans Turck GmbH & Co. KG, Mülheim an der Ruhr.
Subject to alterations without notice.
E_co.fm Seite I Montag, 13. Oktober 2003 8:40 08

I
Safety Notes!
Before starting the installation
Disconnect the power supply of the device.
Ensure that devices cannot be accidentally restarted.
Verify isolation from the supply.
Earth and short circuit.
Cover or enclose neighboring units that are live.
Follow the engineering instructions of the device concerned.
Only suitably qualified personnel in accordance with EN 50 110-
1/-2 (VDE 0 105 Part 100) may work on this device/system.
Before installation and before touching the device ensure that
you are free of electrostatic charge.
The functional earth (FE) must be connected to the protective
earth (PE) or to the potential equalization. The system installer is
responsible for implementing this connection.
Connecting cables and signal lines should be installed so that
inductive or capacitive interference do not impair the automation
functions.
Install automation devices and related operating elements in
such a way that they are well protected against unintentional
operation.
Suitable safety hardware and software measures should be
implemented for the I/O interface so that a line or wire breakage
on the signal side does not result in undefined states in the auto-
mation devices.
Ensure a reliable electrical isolation of the low voltage for the 24
volt supply. Only use power supply units complying with IEC 60
364-4-41 (VDE 0 100 Part 410) or HD 384.4.41 S2.
Deviations of the mains voltage from the rated value must not
exceed the tolerance limits given in the specifications, otherwise
this may cause malfunction and dangerous operation.
Emergency stop devices complying with IEC/EN 60 204-1 must
be effective in all operating modes of the automation devices.
Unlatching the emergency-stop devices must not cause restart.

II
Devices that are designed for mounting in housings or control
cabinets must only be operated and controlled after they have
been installed with the housing closed. Desktop or portable units
must only be operated and controlled in enclosed housings.
Measures should be taken to ensure the proper restart of
programs interrupted after a voltage dip or failure. This should
not cause dangerous operating states even for a short time. If
necessary, emergency-stop devices should be implemented.
Wherever faults in the automation system may cause damage to
persons or property, external measures must be implemented to
ensure a safe operating state in the event of a fault or malfunc-
tion (for example, by means of separate limit switches, mechan-
ical interlocks etc.).
The electrical installation must be carried out in accordance with
the relevant regulations (e. g. with regard to cable cross
sections, fuses, PE).
All work relating to transport, installation, commissioning and
maintenance must only be carried out by qualified personnel.
(IEC 60 364 and HD 384 and national work safety regulations).
All shrouds and doors must be kept closed during operation.

D301034 1106 - BL20 EtherNet/IP i
Table of Contents
About this Manual
Documentation Concept............................................................................... 0-2
General Information ...................................................................................... 0-3
Prescribed Use........................................................................................ 0-3
Notes Concerning Planning /Installation of this Product ........................ 0-3
Description of Symbols Used ....................................................................... 0-4
1 BL20 Philosophy
The Basic Concept........................................................................................ 1-2
Flexibility.................................................................................................. 1-2
Convenient Handling............................................................................... 1-2
BL20 Components ........................................................................................ 1-4
Gateways................................................................................................. 1-4
Power Distribution Modules .................................................................... 1-5
Electronics Modules................................................................................ 1-5
Base Modules.......................................................................................... 1-7
End Plate ................................................................................................. 1-8
End Bracket............................................................................................. 1-9
Jumpers................................................................................................... 1-9
Marking Material.................................................................................... 1-10
Shield Connection, 2-Pole for Analog Modules .................................... 1-11
2EtherNet/IP
System Description ...................................................................................... 2-2
Network-Topology................................................................................... 2-4
Addressing on EtherNet/IP...................................................................... 2-4
Network Classes ..................................................................................... 2-6
Checking the communication via "ping-signals" .................................... 2-7
ARP (Address Resolution Protocol)......................................................... 2-8
3 Technical Features
General.......................................................................................................... 3-2
Function ........................................................................................................ 3-3
Technical Data .............................................................................................. 3-4
Gateway structure ................................................................................... 3-4
Connection possibilities................................................................................ 3-7
Field bus connection ............................................................................... 3-7

D301034 1106 - BL20 EtherNet/IPii
Power Supply via terminal block with screw connection........................ 3-7
Service Interface Connection (female PS/2 connector) .......................... 3-7
Address Setting............................................................................................. 3-9
LED-behavior........................................................................................... 3-9
Default setting of the gateway............................................................... 3-10
Address setting via the rotary-mode..................................................... 3-11
Address setting via BootP-mode .......................................................... 3-12
Address setting via DHCP-mode .......................................................... 3-13
Address setting via PGM-mode ............................................................ 3-14
Addressing via PGM-DHCP .................................................................. 3-15
Address setting via the software "I/O-ASSISTANT" ............................. 3-15
SET Button.................................................................................................. 3-17
Status Indicators/Diagnostic Messages Gateway ...................................... 3-18
Diagnostic Messages via LEDs ............................................................. 3-18
4 Implementation of EtherNet/IP
The EtherNet/IP Communications Profile ..................................................... 4-2
I/O Messages .......................................................................................... 4-2
Explicit Messages.................................................................................... 4-2
Communications Profile of the BL20 EtherNet/IP Gateway.................... 4-3
Classes and Instances of the EtherNet/IP-Gateway..................................... 4-5
EtherNet/IP Standard Classes................................................................. 4-5
Identity Object ......................................................................................... 4-7
Message Router Object......................................................................... 4-10
Assembly Object ................................................................................... 4-18
Connection Manager Object ................................................................. 4-19
Port Object ............................................................................................ 4-20
TCP/IP Interface Object ........................................................................ 4-22
Ethernet Link Object.............................................................................. 4-29
VSC-Vendor Specific Classes..................................................................... 4-32
5 Application Example: BL20 Gateway at an Allen Bradley PLC
General.......................................................................................................... 5-2
Prerequisites for this example................................................................. 5-2
Network configuration................................................................................... 5-4
Changing the IP address of a PC/ network interface card ........................... 5-5
Changing the IP address in Windows 2000/ Windows XP...................... 5-5
Changing the IP address in Windows NT................................................ 5-7
Changing the IP address via I/O-ASSISTANT......................................... 5-9

D301034 1106 - BL20 EtherNet/IP iii
Address setting at the gateway .................................................................. 5-14
Address setting via DHCP-mode ......................................................... 5-14
Setting-up communications with the software tool "RSLinx"..................... 5-18
Configuration of the network in "RSLogiX 5000"........................................ 5-20
Configuration of the controller............................................................... 5-20
Configuration of a BL20 station ............................................................ 5-23
Downloading the I/O configuration........................................................ 5-26
Examples for I/O data mapping .................................................................. 5-29
Mapping report via I/O-ASSISTANT...................................................... 5-32
Example for process data access............................................................... 5-33
Setting outputs at BL20-2DO-0.5A-P ................................................... 5-33
6 Guidelines for Station Planning
Random Module Arrangement...................................................................... 6-2
Complete Planning .................................................................................. 6-2
Maximum System Extension................................................................... 6-2
Power Supply................................................................................................ 6-5
Module Bus Refreshing........................................................................... 6-5
Creating Potential Groups..................................................................... 6-10
Protecting the Service Interface on the Gateway.................................. 6-11
C-Rail (Cross Connection)..................................................................... 6-11
Direct Wiring of Relay Modules............................................................. 6-14
Plugging and Pulling Electronics Modules.................................................. 6-15
Extending an Existing Station ..................................................................... 6-16
Firmware Download .................................................................................... 6-17
7 Guidelines for Electrical Installation
General Notes ............................................................................................... 7-2
General .................................................................................................... 7-2
Cable Routing.......................................................................................... 7-2
Cable Routing Inside and Outside of Cabinets: ...................................... 7-2
Lightning Protection ................................................................................ 7-3
Transmission Media ................................................................................ 7-4
Potential Relationships ................................................................................. 7-5
General .................................................................................................... 7-5
Electromagnetic Compatibility (EMC) ........................................................... 7-6
Ensuring Electromagnetic Compatibility ................................................. 7-6
Grounding of Inactive Metal Components .............................................. 7-6

D301034 1106 - BL20 EtherNet/IPiv
PE Connection......................................................................................... 7-7
Earth-Free Operation............................................................................... 7-7
Mounting Rails......................................................................................... 7-7
Shielding of cables........................................................................................ 7-9
Potential Compensation.............................................................................. 7-11
Switching Inductive Loads .................................................................... 7-11
Protection against Electrostatic Discharge (ESD .................................. 7-12
8Glossary
9Index

D301034 1106 - BL20 EtherNet/IP 0-1
About this Manual
Documentation Concept .................................................................... 2
General Information........................................................................... 3
Prescribed Use............................................................................................3
Notes Concerning Planning /Installation of this Product ............................3
Description of Symbols Used............................................................. 4

About this Manual
D301034 1106 - BL20 EtherNet/IP0-2
Documentation Concept
This manual contains information about the BL20 Ethernet gateway
with EtherNet/IP.
The following chapters contain a short BL20 system description, a
description of the field bus system Ethernet, exact information about
function and structure of the BL20 Ethernet gateways as well as all
bus specific information concerning the connection to automation
devices, the maximum system extension etc..
The bus-independent I/O-modules for BL20 as well as all further
fieldbus-independent chapters like mounting, labelling etc. are
described in a separate manual.
BL20 I/O-modules
(TURCK-Documentation-No.: German D300716/
English D300717)
Furthermore, the manual mentioned above contains a short descrip-
tion of the project planning and diagnostics software for TURCK
I/O-systems, the engineering software I/O-ASSISTANT.

D301034 1106 - BL20 EtherNet/IP 0-3
General Information
General Information
This manual contains all necessary information about the prescibed
use of the TURCK BL20 gateways for Ethernet.
It has been specially conceived for personnel with the necessary
qualifications.
Prescribed Use
Appropriate transport, storage, deployment and mounting as well as
careful operating and thorough maintenance guarantee the trouble-
free and safe operation of these devices.
Notes Concerning Planning /Installation of this Product
Attention
Please read this section carefully. Safety aspects cannot be left to
chance when dealing with electrical equipment.
Warning
The devices described in this manual must be used only in applica-
tions prescribed in this manual or in the respective technical de-
scriptions, and only with certified components and devices from
third party manufacturers.
Warning
All respective safety measures and accident protection guidelines
must be considered carefully and without exception.

About this Manual
D301034 1106 - BL20 EtherNet/IP0-4
Description of Symbols Used
Warning
This sign can be found next to all notes that indicate a source of haz-
ards. This can refer to danger to personnel or damage to the system
(hardware and software) and to the facility.
This sign means for the operator: work with extreme caution.
Attention
This sign can be found next to all notes that indicate a potential
hazard.
This can refer to possible danger to personnel and damages to the
system (hardware and software) and to the facility.
Note
This sign can be found next to all general notes that supply impor-
tant information about one or more operating steps. These specific
notes are intended to make operation easier and avoid unnecessary
work due to incorrect operation.

D301034 1106 - BL20 EtherNet/IP 1-1
1 BL20 Philosophy
The Basic Concept ............................................................................ 2
Flexibility......................................................................................................2
Convenient Handling...................................................................................2
BL20 Components ............................................................................. 4
Gateways.....................................................................................................4
Power Distribution Modules ........................................................................5
Electronics Modules....................................................................................5
Base Modules..............................................................................................7
End Plate .....................................................................................................8
End Bracket.................................................................................................9
Jumpers.......................................................................................................9
Marking Material........................................................................................10
Shield Connection, 2-Pole for Analog Modules ........................................11

BL20 Philosophy
D301034 1106 - BL20 EtherNet/IP1-2
The Basic Concept
BL20 is a modular IP20 I/O-system for use in industrial automation.
It connects the sensors and actuators in the field to the higher-level
master.
BL20 offers modules for practically all applications:
Digital input and output modules
Analog input and output modules
Technology modules (RS232 interface,...)
A complete BL20 station counts as one station on the bus and
therefore occupies one fieldbus address in any given fieldbus struc-
ture. A BL20 station consists of a gateway, power distribution
modules and I/O-modules.
The connection to the relevant fieldbus is made via the bus-specific
gateway, which is responsible for the communication between the
BL20 station and the other fieldbus stations.
The communication within the BL20 station between the gateway
and the individual BL20 modules is realized via an internal module
bus.
Flexibility
A BL20 station can contain modules in any combination, which
means it is possible to adapt the system to practically all applica-
tions in automated industries.
Convenient Handling
All BL20 modules, with the exception of the gateway, consist of a
base module and an electronic module.
The gateway and the base modules are either snapped onto a
mounting rail or are directly mounted onto the machine frame. The
electronic modules are plugged onto the appropriate base modules.
Note
The gateway is the only fieldbus-dependent module on a BL20 sta-
tion. All other BL20 modules are not dependent on the fieldbus
used.

D301034 1106 - BL20 EtherNet/IP 1-3
The Basic Concept
1
After disconnection of the load, the electronic modules can be
plugged or pulled when the station is being commissioned or for
maintenance purposes, without having to disconnect the field wiring
from the base modules.

BL20 Philosophy
D301034 1106 - BL20 EtherNet/IP1-4
BL20 Components
Gateways
The gateway connects the fieldbus to the I/O-modules. It is respon-
sible for handling the entire process data and generates diagnostic
information for the higher-level master and the software tool
I/O-ASSISTANT.
The BL20 gateways BL20-GW-EN offer an integrated power supply
unit for feeding the gateway and the connected I/O modules.
It is not necessary to supply each individual module with a separate
voltage.
Figure 1:
BL20 gateway

D301034 1106 - BL20 EtherNet/IP 1-5
BL20 Components
1
Power Distribution Modules
The power supply for gateways and I/O modules is fed to the power
distribution modules; therefore, it is not necessary to supply each
individual module with a separate voltage.
Electronics Modules
Electronics modules contain the functions of the BL20 modules
(power distribution modules, digital and analog input/output
modules, and technology modules).
Electronics modules are plugged onto the base modules and are not
directly connected to the wiring. The assignment table in the Section
“Ordering Information“ of the “Appendix“ shows the possible
combinations of electronics and base modules. They can be
plugged or pulled when the station is being commissioned or for
Figure 2:
Power distribution
module

BL20 Philosophy
D301034 1106 - BL20 EtherNet/IP1-6
maintenance purposes, without having to disconnect the field wiring
from the base modules.
Figure 3:
Electronics
module in slice
design
Figure 4:
Electronics
module in block
design

D301034 1106 - BL20 EtherNet/IP 1-7
BL20 Components
1
Base Modules
The field wiring is connected to the base modules. These are
constructed as terminals in block and slice designs and are available
in the following variations with either tension clamp or screw
connections: 2-/3-wire (2-channel), 4-wire (2-channel) and 4 x 2-/3-
wire (4-channel).
The assignment table in the Section “Ordering Information“ of the
“Appendix“ shows the possible combinations of electronics and
base modules.
Figure 5:
Base module with
tension clamp
connection
Figure 6:
Base module with
screw connection

BL20 Philosophy
D301034 1106 - BL20 EtherNet/IP1-8
End Plate
An end plate on the right-hand side physically completes the BL20
station. An end bracket mounted into the end plate ensures that the
BL20 station remains secure on the mounting rail even when
subjected to vibration.
Figure 7:
Base module in
block design
Figure 8:
End plate