WAGO I/O-SYSTEM 750 510 376 07 User manual

Modular I/O System
ETHERNET StarterKit 2
510 376 07
Quick Start
ETHERNET Fieldbus Controller
750-841
Version 1.0.5

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: [email protected]
Every conceivable measure has been taken to ensure the correctness and com-
pleteness of this documentation. However, as errors can never be fully ex-
cluded, we would appreciate any information or ideas at any time.
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 the present manual are
generally trademark or patent protected.

Content • iii
WAGO-I/O-SYSTEM 750
ETHERNET StarterKit 2
CONTENT
1Important Comments .................................................................................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 Notes .............................................................................................6
1.5 Scope........................................................................................................6
2Quick Start...................................................................................................7
2.1 Node Assembly ........................................................................................7
2.2 Ethernet Network Start-Up.......................................................................8
2.3 The First Program...................................................................................13
2.4 Program Download to the Controller 750-841.......................................18
2.5 Alternative to the Variable Declaration in the PLC Configuration........18
2.6 Modbus/TCP DLL Application Examples.............................................19
2.7 Information for Programming and Web Visualization...........................20
3Addressing .................................................................................................21
3.1 Comparison of Modbus and IEC1131 Addresses ..................................21
3.1.1 WORD Access...................................................................................22
3.1.2 Bit Access..........................................................................................24

4 • Important Comments
Legal Principles
WAGO-I/O-SYSTEM 750
ETHERNET StarterKit 2
1 Important Comments
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 abided by.
1.1 Legal Principles
1.1.1 Copyright
This manual is copyrighted, together with all figures and illustrations con-
tained therein. Any use of this manual which infringes the copyright provi-
sions stipulated herein, is not permitted. Reproduction, translation and elec-
tronic and photo-technical archiving and amendments require the written con-
sent of WAGO Kontakttechnik GmbH & Co. KG. Non-observance will entail
the right of claims for damages.
WAGO Kontakttechnik GmbH & Co. KG reserves the right to perform modi-
fications allowed by technical progress. In case of grant of a patent or legal
protection of utility patents all rights are reserved by WAGO Kontakttechnik
GmbH & Co. KG. Products of other manufacturers are always named without
referring to patent rights. The existence of such rights can therefore not be
ruled out.
1.1.2 Personnel Qualification
The use of the product detailed in this manual is exclusively geared to special-
ists having qualifications in PLC programming, electrical specialists or per-
sons instructed by electrical specialists who are also familiar with the valid
standards. WAGO Kontakttechnik GmbH & Co. KG declines all liability re-
sulting 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 supplied are to work with a
dedicated hardware and software configuration. Modifications are only per-
mitted 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 part of WAGO Kon-
takttechnik 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 Comments • 5
Symbols
WAGO-I/O-SYSTEM 750
ETHERNET StarterKit 2
1.2 Symbols
Danger
Always abide by this information to protect persons from injury.
Warning
Always abide by this information to prevent damage to the device.
Attention
Marginal conditions must always be observed to ensure smooth operation.
ESD (Electrostatic Discharge)
Warning of damage to the components by electrostatic discharge. Observe
the precautionary measure for handling components at risk.
Note
Routines or advice for efficient use of the device and software optimization.
More information
References on 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' Within ', Nibble separated with dots

6 • Important Comments
Safety Notes
WAGO-I/O-SYSTEM 750
ETHERNET StarterKit 2
1.4 Safety Notes
Attention
Switch off the system prior to working on bus modules!
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 insu-
lating properties. Belonging to this group of materials is: e.g. aerosols, sili-
cones, triglycerides (found in some hand creams).
If it cannot be ruled out that these materials appear in the component envi-
ronment, then additional measures are to be taken:
- installation of the components into an appropriate enclosure
- handling of the components only with clean tools and materials.
Attention
Cleaning of soiled contacts may only be done with ethyl alcohol and leather
cloths. Thereby, the ESD information is to be regarded.
Do not use any contact spray. The spray may impair the functioning of the
contact area.
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 concerning the
installation of switch boxes are to 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 envi-
ronment (persons, workplace and packing) is well grounded. Avoid touching
conductive components, e.g. gold contacts.
1.5 Scope
These quick start instructions describe the ETHERNET StarterKit 2
with the Ethernet fieldbus controller 750-841 and some basic components of
the WAGO-I/O-SYSTEM 750.
You will find detailed information about operation, assembly and start-up in
the manuals “Ethernet TCP/IP 750-841“ and “WAGO-I/O-PRO CAA“. This
documentation is hence only valid in connection with the appropriate manuals.
Further information
You can also find the manuals “Ethernet TCP/IP 750-841“ and “WAGO-I/O-
PRO CAA“ on our “WAGO-I/O-PRO CAA“ CD-ROM (759-911) and in the
Internet under www.wago.com.

Quick Start • 7
Node Assembly
WAGO-I/O-SYSTEM 750
ETHERNET StarterKit 2
2 Quick Start
2.1 Node Assembly
Build up the fieldbus node as follows (from left to right):
750-841; 750-400 ; 750-501 ; 750-600.
Connect the supplies for the controller and for the power jumper contacts to
the DC 24 V power supply unit 787-602 (see Fig.1).
In this example it would be sufficient to bridge “24V“ and “+“ or “0V“ and “-
“.
Fig.1: 10/100 MBit ETHERNET fieldbus controller 750-841

8 • Quick Start
Ethernet Network Start-Up
WAGO-I/O-SYSTEM 750
ETHERNET StarterKit 2
2.2 Ethernet Network Start-Up
Allocating the IP address is done very conveniently using both the included
serial programming cable and the “WAGO Ethernet Settings“ program.
Connect your PC with the configuration and programming interface of the
node.
Install the “WAGO Ethernet Settings“ program, which you can find either on
the “Tools & Docs“ CD-ROM or on the WAGO Web pages under Service Æ
Downloads ÆSoftware.
After starting, the program identifies the current settings of the node.
Fig. 2: WAGO Ethernet Settings
If a connection timeout occurs, you can retry the connection by using the
“Identify“ button. If the problem persists, check the COM port settings and
cabling.

Quick Start • 9
Ethernet Network Start-Up
WAGO-I/O-SYSTEM 750
ETHERNET StarterKit 2
An IP address always consists of both network and computer addresses. The
network mask determines which bits belong to the network address and which
do not.
Fig. 3: Settings of the PC network card
Select a free computer address from the local network. You can find out the
network address of your PC under Start ÆSettings ÆNetwork and Dial-up
connections ÆLAN connection x ÆProperties. To do so, select the Internet
protocol (TCP/IP) from the selection list and press the ”Properties“ button.
Attention
Assigning IP addresses twice can lead to serious network failures.
IP-Address : 192.168. 1.8
SubNetMask : 255.255.255.0
Network-Adr. : 192.168. 1
Computer-Adr.: 8

10 • Quick Start
Ethernet Network Start-Up
WAGO-I/O-SYSTEM 750
ETHERNET StarterKit 2
Click on the “TCP/IP“ tab and enter an IP address for the node. Then, press
the ”Write“ button to write the change to the node.
Fig. 4: Settings of the 750-841 Controller IP address
Now connect the node to the Ethernet network either directly to a PC using a
crossover cable or to a Hub or Switch using a 1-to-1 patch cable.
Attention
The IP address of the controller can also be assigned using the ”WAGO
BootP Server“ instead of the ”WAGO Ethernet Settings“. In this case, the
allocation is done via the Ethernet interface of the device so that no separate
serial cable is required. However, the assigned IP address will only be used
temporarily. In the Web Base Management (WBM), the BootP protocol must
be deactivated subsequently in order to save the IP address permanently.