WAGO 750-872 Instruction manual

Modular I/O System
Quick-Start Manual for ETHERNET
Fieldbus Controller 750-872
Version 1.0.0

ii • General
WAGO I/O SYSTEM 750
ETHERNET StarterKit 2
Copyright 2008 by WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH &Co. KG
Hansastraße 27
D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-mail: [email protected]
Web: http://www.wago.com
Technical Support
Phone: [phone] – 5 55
Fax: [phone] – 85 55
E-Mail:
Every conceivable measure has been taken to ensure the accuracy and
completeness of this documentation. However, as errors can never be fully
excluded, we always appreciate any information or suggestions for improving
the documentation.
E-Mail: : [email protected]
We wish to point out that the software and hardware terms as well as the
trademarks of companies used and/or mentioned in this manual are generally
protected by trademark or patent.

Contents • iii
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
TABLE OF CONTENTS
1Important Notes ..........................................................................................4
1.1 Legal Principles........................................................................................4
1.1.1 Copyright.............................................................................................4
1.1.2 Personnel Qualification .......................................................................4
1.1.3 Intended Use........................................................................................4
1.2 Symbols....................................................................................................5
1.3 Number Notation......................................................................................5
1.4 Safety Information....................................................................................6
1.5 Scope of Validity......................................................................................6
2Quick-Start Guide.......................................................................................8
2.1 Hardware Design......................................................................................8
2.2 Ethernet Network Start-Up.......................................................................9
2.3 Installing the WAGO Target System for CoDeSys................................14
2.4 Telecontrol with CoDeSys 2.3 ...............................................................16
2.4.1 Communication via the RJ-45 Interface [TCP/IP]............................20
2.4.2 Communication via the Serial Interface............................................24
2.5 Creating a Program.................................................................................28
2.6 Downloading the Program to the 750-872 Controller............................29
3Simulation..................................................................................................30
3.1 Simulating Telecontrol via Ethernet (TCP/IP) with the WinPP104
Program..................................................................................................30
3.2 Simulating Telecontrol via the Serial Interface with the WinPP101
Program..................................................................................................33
4Appendix....................................................................................................37
4.1 Application Data Structure.....................................................................37
4.2 Difference between Symmetrical and Asymmetrical Transmission
Procedures..............................................................................................38
4.3 Explanation of the Set-Up Options for an Information Object..............39
4.4 Finding Incorrect Address Information with CoDeSys..........................40

4 • Important Notes
Legal Principles
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
1 Important Notes
To ensure fast installation and start-up of the units described in this manual,
we strongly recommend that the following information and explanations are
carefully read and adhered to.
1.1 Legal Principles
1.1.1 Copyright
This manual including all figures and illustrations contained therein is subject
to copyright. Any use of this manual which infringes the copyright provisions
stipulated herein, is not permitted. Reproduction, translation into other
languages and electronic and photographic archiving and amendments require
the written consent of WAGO Kontakttechnik GmbH & Co. KG, Minden.
Non-observance will entail the right of claims for damages.
WAGO Kontakttechnik GmbH & Co. KG reserves the right to enact changes
that serve technical progress. All rights developing from the issue of a patent
or the legal protection of utility patents are reserved by WAGO
Kontakttechnik GmbH & Co. KG. Third-party products are always indicated
without any notes concerning patent rights. Thus, the existence of such rights
must not be excluded.
1.1.2 Personnel Qualification
The use of the product described in this manual is exclusively geared to
specialists having qualifications in PLC programming, electrical specialists or
persons instructed by electrical specialists who are also familiar with the
appropriate applicable standards. WAGO Kontakttechnik GmbH & Co. KG
declines any liability resulting from improper action and damage to WAGO
products and third-party products due to non-observance of the information
contained in this manual.
1.1.3 Intended Use
For each individual application, the components are supplied from the factory
with a dedicated hardware and software configuration. Modifications are only
admitted within the framework of the possibilities documented in the manuals.
All other changes to the hardware and/or software and the non-conforming use
of the components entail the exclusion of liability on the part of WAGO
Kontakttechnik GmbH & Co. KG.
Please direct any requirements pertaining to a modified and/or new hardware
or software configuration directly to WAGO Kontakttechnik GmbH & Co.
KG.

Important Notes • 5
Symbols
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
1.2 Symbols
DANGER
Always observe this information to protect persons from injury.
NOTICE
Always observe this information to prevent damage to the device.
NOTE
Marginal conditions that must always be observed to ensure smooth
operation.
ESD (Electrostatic Discharge)
Warning of damage to the components through electrostatic discharge.
Observe the precautionary measure for handling components at risk of
electrostatic discharge.
Note
Routines or advice for efficient use of a device and software optimization.
Additional Information
References to additional literature, manuals, data sheets and INTERNET
pages.
1.3 Number Notation
Number code Example Note
Decimal 100 Normal notation
Hexadecimal 0x64 C notation
Binary '100'
'0110.0100' In inverted commas, nibbles separated by dots (.)

6 • Important Notes
Safety Information
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
1.4 Safety Information
NOTICE
Switch off the power before replacing any components!
In the event of deformed contacts, the module in question is to be replaced, as
its functionality can no longer be ensured on a long-term basis.
The components are not resistant against materials having seeping and
insulating properties. Belonging to this group of materials are: e.g., aerosols,
silicones, triglycerides (found in some hand creams).
If it cannot be ruled out that these materials appear in the component
environment, then additional measures are to be taken:
- Installation of the components in an appropriate enclosure.
- Handling of the components only with clean tools and materials.
NOTE
Soiled contacts may only be cleaned with ethyl alcohol and a leather cloth. In
doing so, attention must be paid to the ESD information.
Do not use contact sprays, which in extreme cases could impair the operation
of the contact.
The WAGO-I/O-SYSTEM 750 and its components are an open system. It
must only be assembled in housings, cabinets or in electrical operation
rooms. Access must only be given via a key or tool to authorized, qualified
personnel.
The relevant valid and applicable standards and guidelines regarding the
installation of switch cabinets must be observed.
ESD (Electrostatic Discharge)
The modules are equipped with electronic components that may be destroyed
by electrostatic discharge. When handling the modules, ensure that the items
in the environment (personnel, workplace and packaging) are well grounded.
Do not touch conducting parts; e.g., gold data contacts.
1.5 Scope of Validity
This quick-start manual describes the programming of the 750-872 controller
as the master of an outstation as defined by IEC 60870-5-101 and -104 with
some basic modules from the WAGO-I/O-SYSTEM for telecontrol.
Detailed information relating to handling, assembly and start-up is described
in the "Ethernet TCP/IP 750-872" and "WAGO-I/O-PRO CAA" manuals. This
documentation is therefore only valid in conjunction with the appropriate
manuals.

Important Notes • 7
Scope of Validity
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
Additional Information:
You will find the "Ethernet TCP/IP 750-872" and "WAGO-I/O-PRO CAA"
manuals on the "WAGO-I/O-PRO CAA" CD (759-911), on the
"ELECTRONICC Tools & Docs" CD (Item No.: 0888-0412/0001-0101) and
on the Internet at: www.wago.com

8 • Quick-Start Guide
Hardware Design
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
2 Quick-Start Guide
2.1 Hardware Design
Build up the node as follows (from left to right):
750-872; 750-400; 750-501; 750-461; 750-600.
Connect the 24V DC power unit to the supply (24V and 0V) for the controller
and for the power contacts (see Fig. 1).
For the application used in the example, it is sufficient to connect a jumper
between "24V" and "+" and between "0V" and "-".
Fig. 1: Connections for the 750-872 controller

Quick-Start Guide • 9
Ethernet Network Start-Up
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
Fig. 2: Node with the 750-872 telecontrol fieldbus controller
2.2 Ethernet Network Start-Up
The IP address is conveniently assigned using the serial programming cable
provided and the "WAGO Ethernet Settings" program. Connect your PC to the
node's configuration and programming interface. Install the "WAGO Ethernet
Settings" program. You will find it on the "Tools & Docs" CD as well as on
the WAGO website under Service Downloads Software. After starting, the
program will determine the current node settings.

10 • Quick-Start Guide
Ethernet Network Start-Up
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
Fig. 3: WAGO Ethernet Settings
If the connection should time out, you can force the display to update with
"Identify". If the problem should persist, check the COM port setting and the
cabling.

Quick-Start Guide • 11
Ethernet Network Start-Up
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
An IP address always consists of a network and a computer address; the
network mask determines which bits belong to the network address and which
do not.
Fig. 4: Setting the PC network address under Windows
IP address : 192.168. 0. 44
SubNetMask : 255.255.255.0
Network address : 192.168. 0. Computer address: 44
Select a free computer address from the local network. You can identify the
network address of your PC under "Start" Æ"Settings" Æ"Network and Dial-
up Connections" Æ"LAN Connection" Æ"Properties".
To do this, highlight the Internet protocol (TCP/IP) in the drop-down list box
and press the "Properties" button.
NOTE:
The double assignment of IP addresses can lead to serious network errors.

12 • Quick-Start Guide
Ethernet Network Start-Up
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
Switch to the "TCP/IP" tab and enter an IP address for the node. Then transfer
the change to the node with "Write".
Fig. 5: IP address settings for the 750-872 controller
Now connect the node to the Ethernet network. Either directly with a
crossover cable to a PC or with a 1-to-1 patch cable to a hub or switch.
NOTE:
Alternatively, the IP address for the controller can also be assigned with the
"WAGO BootP Server" instead of with "WAGO Ethernet Settings". The
address is assigned via the Ethernet interface on the device. A separate serial
cable is not then necessary. However, the transferred IP address is only used
temporarily. To save this permanently, the BootP protocol must also be
deactivated in the Web-Based Management (WBM).
To test the connection, open the "DOS Shell" with "Start" Æ"Programs" Æ
"Accessories" Æ"Input prompt" and set off a PING on the IP address of the
node.

Quick-Start Guide • 13
Ethernet Network Start-Up
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
Fig. 6: Testing the connection to the 750-872 telecontrol controller with "PING"
If the node does not answer, please contact your network administrator.
All settings can be viewed and changed using Web-Based Management
(WBM). To use this, start your browser and enter http:// in the URL line,
followed by the IP address of the node (for example: http://192.168.0.3).
The integrated web server will then return the following website.
Fig. 7: WEB server homepage
When a proxy server is used, this must be bypassed for local addresses. You
will find information on bypassing the proxy server for local addresses in your
browser Help under Proxy servers or LAN settings.

14 • Quick-Start Guide
Installing the WAGO Target System for CoDeSys
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
The configuration sites linked via Hyperlinks require a login. In the default
state the following users are defined:
User Password
admin wago
user user
guest guest
Fig. 7: Users and passwords of the 750-849 controller's web server
2.3 Installing the WAGO Target System for CoDeSys
The following installation is only to be carried out when a CoDeSys version
below 2.3.9.7 is used. From CoDeSys Version 2.3.9.7, the WAGO target
system is already included in the installation.
To install the WAGO target system, the installation file (Customer.exe) must
first be downloaded and saved in any folder. The installation program must
then be run by double-clicking on Customer.exe.
The installation will start and the following two windows will be seen one
after the other; when neither of the two windows is displayed, the installation
is complete.
Fig. 8: Installation of WAGO target system for CoDeSys 1/2
Fig. 9: Installation of WAGO target system for CoDeSys 2/2

Quick-Start Guide • 15
Installing the WAGO Target System for CoDeSys
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
Create a copy of the link to CoDeSys and open the "Properties" from the
context menu (right mouse button).
In the newly opened window you must enter a "space" and "–remote" in the
"Target" box after (…\CoDeSys V2.3\Codesys.exe“).
Fig. 10: Properties for the copy of CoDeSys V2.3
The settings are saved by clicking "Apply" and the window is closed by
clicking "OK".

16 • Quick-Start Guide
Telecontrol with CoDeSys 2.3
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
2.4 Telecontrol with CoDeSys 2.3
Prerequisite: The WAGO-I/O-PRO CAA software (CoDeSys) and the
WAGO target system must be installed correctly.
You can start a new project with "File" Æ"New".
A brief example is shown below:
Before programming the 750-872, the controller must be selected in the
"Target system settings" dialog window.
Fig. 11: Target system settings
Please select "WAGO_750-872" as the target system.
In the next dialog window, the selected target system must be confirmed with
"OK".
If you do not want to write your own program as an addition to the program
generated by the configurator (to IEC 60870), as is the case in this example,
you can press "Cancel" in the next window.
In this example, you must press "OK" in the next dialog window and select the
programming language "FUP" in the following window and accept it with
"OK".
Switch to the "Resources" tab and here go to "PLC configuration".
Fig. 12: WAGO-I/O-PRO CAA, PLC Configuration

Quick-Start Guide • 17
Telecontrol with CoDeSys 2.3
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
Highlight the entry "K-Bus[FIX]" in the PLC configuration, open the context
menu with the right mouse button and select "Add sub-module". This will
open the I/O configurator.
Fig. 13: WAGO-I/O-PRO CAA, I/O configuration
In the example application, as described in section 2.1, only one digital input
module 750-400, one digital output module 750-501 and one analog input
module 750-461 have been plugged into the 750-872 controller. The 750-600
end module is plugged in at the extreme right.
Consequently, now first select the module 750-400 from the "I/O Module
Catalog" under “Digital Input” on the left-hand side and transfer it to the right-
hand side in your selection using the "Insert" button.
Then select the module 750-501 from the "I/O Module Catalog" under
“Digital Output” on the left-hand side and likewise transfer it to the right-hand
side in your selection using the "Insert" button.
Then select the module 750-461 from the "I/O Module Catalog" under
“Analog Input” on the left-hand side and likewise transfer it to the right-hand
side in your selection using the "Insert" button.
If you want to delete modules from your selection, then highlight the module
concerned on the right-hand side and press "Delete".
You can change the position of a module in your selection by highlighting the
module and moving it up or down with the arrow buttons on the right-hand
side of the window.

18 • Quick-Start Guide
Telecontrol with CoDeSys 2.3
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
The 750-600 end module is not specified in the "I/O Configuration".
Next confirm your selection with "OK".
For each I/O module, under module parameters, you can now assign whether
the module outputs are to be written by the controller (PLC) or by a specified
Ethernet protocol (Fieldbus 1 = Modbus/TCP or Fieldbus 2 = Ethernet/IP)
(Fig. 11).
Fig. 14: WAGO-I/O-PRO CAA, I/O configurator
In the example, the value "PLC" is to be used for the moment.
The I/O configurator now shows the addresses of each channel on the module,
that is to say each individual bit/word.
Fig. 15: WAGO-I/O-PRO CAA, I/O configurator with 750-400, 750–501 and 750-461

Quick-Start Guide • 19
Telecontrol with CoDeSys 2.3
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
If you click the address designation in front of the word "AT" with the left
mouse button, a label will open in which a variable name can be entered
(Fig. 13).
Fig. 16: WAGO-I/O-PRO CAA, Variable declaration in the I/O configurator
Now enter the following variable names:
Start (for address %IX2.0)
Valve1_closed (for address %IX2.1)
Valvel1_open (for address %QX0.0)
Valvel2_open (for address %QX0.1)
Temperature1 (for address %IW 0)
Temperature2 (for address %W 1)
The configuration generator for telecontrol according to IEC 60870-5 can be
activated by clicking with the right mouse button on "Hardware configuration"
and selecting "Add IEC 60870-5 config" from the context menu.
Fig. 17: Adding IEC 60870-5 Config

20 • Quick-Start Guide
Telecontrol with CoDeSys 2.3
WAGO-I/O-SYSTEM 750
Telecontrol Quick-Start Manual
This produces another sub-item "IEC 60870-5-Config[VAR]" in the system
configuration. Clicking this item opens a new window in which 2 tabs are
shown. Now open the "IEC 60870 - Config" tab.
Fig. 18: PLC configuration
The basic settings for telecontrol according to IEC 60870-5 can now be made
in this window. Set the "Create variables automatically" option to "no".
This window must also be used to define the communications protocol with
which communication is to be set up with the data server.
A choice can be made from the following communications protocols:
101 via the serial interface [Serial]
104 via the RJ-45 interface [TCP/IP]
2.4.1 Communication via the RJ-45 Interface [TCP/IP]
Highlight the required interface to the data server in the bottom left-hand box,
in this case "104 Data servers [TCP/IP]", and click the "ADD>>" button
between the bottom two boxes in order to select the communications interface.
The interface "IEC60870_Server104 [001.000 = 1]" will appear in the bottom
right-hand box under "IEC60870 configuration“.
To remove an interface which appears in the right-hand window, the interface
can be selected in this window and removed by clicking the "<<DEL" button
between the two windows.
Settings can be adjusted by highlighting the interface in the bottom right-hand
window. These are not relevant for this Quick-Start manual.