Page 1 Modular I/O-System Programmable Fieldbus Controller for Telecontrol Applications 750-872/020-000 Manual Technical description, installation and configuration Version 1.0.0...
Page 2 • General Copyright © 2007 by WAGO Kontakttechnik GmbH & Co. KG All rights reserved. WAGO Kontakttechnik GmbH & Co. KG Hansastraße 27 D-32423 Minden Phone: +49 (0) 571/8 87 – 0 Fax: +49 (0) 571/8 87 – 1 69 E-Mail: info@wago.com...
Page 3: Table Of Contents
Font Conventions ..................5 Number Notation ..................5 Scope ......................6 Important Comments for Starting up............6 Abbreviation..................... 6 2 The WAGO-I/O-SYSTEM 750 ..............7 System Description................... 7 Technical Data..................8 Manufacturing Number ................14 Component Update................. 15 Storage, Assembly and Transport ............15 Mechanical Setup ...................
Page 4 Example of Use: ............... 66 3.1.7 Starting up a Fieldbus Node .............. 67 3.1.7.1 Variation 1: Start up with the WAGO Ethernet Settings....67 3.1.7.1.1 Connecting PC and Fieldbus Node ..........67 3.1.7.1.2 Allocating the IP Address to the Fieldbus Node......68 3.1.7.1.3...
Page 5 Testing the Function of the Fieldbus Node........73 3.1.7.2.6 Deactivating the BootP Protocol........... 74 3.1.7.3 Transmission Mode Configuration ..........76 3.1.8 Programming the PFC with WAGO-I/O-PRO CAA......77 3.1.8.1 WAGO-I/O-PRO CAA library elements for ETHERNET... 81 3.1.8.2 Restrictions in the Function Range ..........82 3.1.8.3 Some Basic Facts about IEC Tasks ..........
Page 6 Description of the internal variables ........... 166 4.2.5.1.1 Watchdog (Fieldbus failure) ............166 4.2.5.1.2 Watchdog Register:..............167 4.2.5.2 Diagnostic Functions ..............171 4.2.5.3 Configuration Functions ............. 171 4.2.5.4 Firmware Information ..............175 4.2.5.5 Constant Registers ..............176 EtherNet/IP (Ethernet/Industrial Protocol)........... 178 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 7 Object model..................180 4.3.3.1 General..................180 4.3.3.2 Classes..................181 4.3.3.2.1 CIP Common Classes ..............181 4.3.3.2.2 WAGO specific Classes.............. 181 4.3.3.2.3 Explanations of the Object Description ........182 4.3.3.2.4 Identity (01 )................183 4.3.3.2.5 Message Router (02 ) .............. 184 4.3.3.2.6...
Page 8 Explosion Protection Groups............261 7.4.3 Temperature Classes................ 262 Identification ..................263 7.5.1 For Europe ..................263 7.5.2 For America ..................264 Installation Regulations................ 265 8 Glossary....................267 9 Literature List ..................279 10 Index ......................280 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 9: Important Notes
All personnel must be familiar with the 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.
Page 10: Conforming Use Of Series 750
All changes to the hardware 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 &...
Page 11: Symbols
Observe the precautionary measure for handling components at risk of electrostatic discharge. Note Make important notes that are to be complied with so that a trouble-free and efficient device operation can be guaranteed. Additional Information References to additional literature, manuals, data sheets and internet pages. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 12: Safety Information
Danger 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 is only permitted via a key or tool to authorized qualified personnel.
Page 13: Font Conventions
• 5 Font Conventions 1.5 Font Conventions Names of paths and files are marked in italic. italic e.g.: C:\Programs\WAGO-IO-CHECK Menu items are marked in bold italic. italic e.g.: Save A backslash between two names characterizes the selection of a menu point from a menu.
Page 14: Scope
Telecontrol controller RJ-45 1.8 Important Comments for Starting up Attention For the start-up of the controller 750-872/020-000 important notes are to be considered, because it strongly differentiates in some points of starting up the WAGO ETHERNET controller 750-842. Read for this the chapter: „ Starting up an ETHERNET TCP/IP fieldbus node“.
Page 15: The Wago-I/O-System 750
The WAGO-I/O-SYSTEM 750 has a clear port level with LEDs for status indication, insertable mini WSB markers and pullout group marker carriers. The 3-wire technology supplemented by a ground wire connection allows for direct sensor/actuator wiring.
Page 16: Technical Data
Maximum pollutant concentration at S ≤ 10 ppm relative humidity < 75% Special conditions Ensure that additional measures for components are taken, which are used in an environment involving: – dust, caustic vapors or gases – ionization radiation WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 17 150 kHz ... 500 kHz conducted) 30 dB (µA) 500 kHz ... 30 MHz EN 55022 (radiated) 30 dB (µV/m) 30 MHz ... 230 MHz 10 m 37 dB (µV/m) 230 MHz ... 1 GHz 10 m WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 18 IEC 60068-2-32 free fall (module in original packing) *) QP: Quasi Peak Note: If the technical data of components differ from the values described here, the technical data shown in the manuals of the respective components shall be valid. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 19 Technical Data • 11 Technical Condition of the Devices For Products of the WAGO-I/O-SYSTEM 750 with ship specific approvals supplementary guidelines are valid: Electromagnetic compatibility Immunity to interference acc. to Germanischer Lloyd (2003) Test specification Test values Strength Evaluation class...
Page 20 In Germany, the Federal Office for Post and Telecommunications and its branch offices issues the permit. It is possible to use other field bus couplers/controllers under certain boundary conditions. Please contact WAGO Kontakttechnik GmbH & Co. KG. Maximum power dissipation of the components Bus modules 0.8 W / bus terminal (total power dissipation,...
Page 21 Technical Condition of the Devices Dimensions 01 02 24V 0V Side view Dimensions in mm Fig. 2-2: Dimensions g01xx05e Note: The illustration shows a standard coupler. For detailed dimensions, please refer to the technical data of the respective coupler/controller. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 22: Manufacturing Number
The manufacturing number consists of the production week and year, the software version (if available), the hardware version of the component, the firmware loader (if available) and further internal information for WAGO Kontakttechnik GmbH & Co. KG. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 23: Component Update
Thereby, the ESD information is to be regarded. Statically shielded transport bags with metal coatings are to be used for the transport of open components for which soiling with amine, amide and silicone has been ruled out, e.g. 3M 1900E. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 24: Mechanical Setup
Attention In the case of vertical assembly, an end stop has to be mounted as an additional safeguard against slipping. WAGO item 249-116 End stop for DIN 35 rail, 6 mm wide WAGO item 249-117 End stop for DIN 35 rail, 10 mm wide 2.6.2 Total Expansion...
Page 25: Assembly Onto Carrier Rail
WAGO Kontakttechnik GmbH & Co. KG supplies standardized carrier rails that are optimal for use with the I/O system. If other carrier rails are used, then a technical inspection and approval of the rail by WAGO Kontakttechnik GmbH & Co. KG should take place.
Page 26: Wago Din Rail
18 • Mechanical Setup Spacing 2.6.3.2 WAGO DIN Rail WAGO carrier rails meet the electrical and mechanical requirements. Item Number Description 210-113 /-112 35 x 7.5; 1 mm; steel yellow chromated; slotted/unslotted 210-114 /-197 35 x 15; 1.5 mm; steel yellow chromated; slotted/unslotted 210-118 35 x 15;...
Page 27: Plugging And Removal Of The Components
Fig. 2-6: removing bus terminal p0xxx01x Danger Ensure that an interruption of the PE will not result in a condition which could endanger a person or equipment! For planning the ring feeding of the ground wire, please see chapter 2.6.3. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 28: Assembly Sequence
4-channel digital input module, has a decreased air and creepage distance to the neighboring contact in the example DI4. Always terminate the field bus node with an end module (750-600). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 29: Internal Bus/Data Contacts
The modules are equipped with electronic components that may be destroyed by electrostatic discharge. When handling the modules, ensure that the environment (persons, workplace and packing) is well grounded. Avoid touching conductive components, e.g. data contacts. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 30: Power Contacts
Fig. 2-8: Example for the arrangement of power contacts g0xxx05e Recommendation With the WAGO ProServe® Software smartDESIGNER, the structure of a field bus node can be configured. The configuration can be tested via the integrated accuracy check. WAGO-I/O-SYSTEM 750...
Page 31: Wire Connection
More than one conductor per connection is not permissible. If several conductors have to be made at one connection point, then they should be made away from the connection point using WAGO Terminal Blocks. The terminal blocks may be jumpered together and a single wire brought back to the I/O module connection point.
Page 32: Power Supply
When using a joint power supply unit for the 24 V system supply and the 24 V field supply, the electrical isolation between the internal bus and the field level is eliminated for the potential group. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 33: System Supply
System Supply 2.7.2 System Supply 2.7.2.1 Connection The WAGO-I/O-SYSTEM 750 requires a 24 V direct current system supply (-15% or +20 %). The power supply is provided via the coupler/controller and, if necessary, in addition via the internal system supply modules (750-613).
Page 34: Alignment
Attention If the sum of the internal current consumption exceeds the residual current for bus modules, then an internal system supply module (750-613) must be placed before the module where the permissible residual current was exceeded. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 35 (750-613), e.g. in the middle of the node, should be added. Recommendation With the WAGO ProServe® Software smartDESIGNER, the assembly of a field bus node can be configured. The configuration can be tested via the integrated accuracy check.
Page 36: Field Supply
By inserting an additional power supply module, the field supply via the power contacts is disrupted. From there a new power supply occurs which may also contain a new voltage potential. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 37: Fusing
750-601 24 V DC, Supply/Fuse 750-609 230 V AC, Supply/Fuse 750-615 120 V AC, Supply/Fuse 750-610 24 V DC, Supply/Fuse/Diagnosis 750-611 230 V AC, Supply/Fuse/Diagnosis Fig. 2-14: Supply module with fuse carrier (Example 750-610) g0xxx09x WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 38 Lifting the cover to the side opens the fuse carrier. Fig. 2-16: Opening the fuse carrier p0xxx03x Fig. 2-17: Change fuse p0xxx04x After changing the fuse, the fuse carrier is pushed back into its original position. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 39 Power Supply • 31 Field Supply Alternatively, fusing can be done externally. The fuse modules of the WAGO series 281 and 282 are suitable for this purpose. Fig. 2-18: Fuse modules for automotive fuses, series 282 pf66800x Fig. 2-19: Fuse modules with pivotable fuse carrier, series 281 pe61100x Fig.
Page 40: Supplementary Power Supply Regulations
Supplementary Power Supply Regulations 2.7.4 Supplementary Power Supply Regulations The WAGO-I/O-SYSTEM 750 can also be used in shipbuilding or offshore and onshore areas of work (e. g. working platforms, loading plants). This is demonstrated by complying with the standards of influential classification companies such as Germanischer Lloyd and Lloyds Register.
Page 41: Supply Example
2) Ring-feeding 10 A recommended a) Power Supply on coupler / controller via external Supply Module b) Internal System Supply Module c) Supply Module passive Supply Module with fuse carrier/ iagnostics Fig. 2-22: Supply example g0xxx04e WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 42: Power Supply Unit
Power Supply Power Supply Unit 2.7.6 Power Supply Unit The WAGO-I/O-SYSTEM 750 requires a 24 V direct current system supply with a maximum deviation of -15% or +20 %. Recommendation A stable network supply cannot be taken for granted always and everywhere.
Page 43: Grounding
The optimal insulated setup is a metallic assembly plate with grounding connection with an electrical conductive link with the carrier rail. The separate grounding of the carrier rail can be easily set up with the aid of the WAGO ground wire terminals. Item No. Description...
Page 44: Grounding Function
Attention Care must be taken to ensure the direct electrical connection between the carrier rail contact and the carrier rail. The carrier rail must be grounded. For information on carrier rail properties, please see chapter 2.6.3.2. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 45: Grounding Protection
Fig. 2-24: Ring-feeding g0xxx07e Attention The regulations relating to the place of assembly as well as the national regulations for maintenance and inspection of the grounding protection must be observed. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 46: Shielding (Screening)
Note For a better shield performance, the shield should have previously been placed over a large area. The WAGO shield connection system is suggested for such an application. This suggestion is especially applicable if the equipment can have even current or high impulse formed currents running through (for example initiated by atmospheric discharge).
Page 47: Wago Shield (Screen) Connecting System
WAGO Shield (Screen) Connecting System 2.9.4 WAGO Shield (Screen) Connecting System The WAGO Shield Connecting system includes a shield clamping saddle, a collection of rails and a variety of mounting feet. Together these allow many different possibilities. See catalog W4 volume 3 chapter 10.
Page 48: Fieldbus Controller
ETHERNET fieldbus coupler with the functionality of a Programmable Logic Controller (PLC). When the PFC is used as a PLC, all or some of its I/O modules can be control locally with the use of WAGO-I/O- PRO CAA. WAGO-I/O-PRO CAA is an IEC 61131-3 programming tool,...
Page 49: Compatibility
CoDeSys Automation Alliance). Attention With additional target files, the fieldbus controller 750-872/020-000 supports already also the software version V 2.3.7.2 of WAGO I/O PRO CAA 759-333. Please order these necessary target files for addition from the WAGO service under: WAGO technical support via phone: +49 (0) 571/8 87 –555 or E-Mail: support@wago.com.
Page 50: Hardware
42 • Fieldbus Controller 750-872/020-000 Hardware 3.1.3 Hardware 3.1.3.1 View status 01 02 ETHERNET voltage supply LINK -power jumper contacts fieldbus -system connection data contacts 24V 0V RJ 45 TxD/RxD supply supply via power jumper contacts flap open power jumper contacts...
Page 51: Device Supply
Fieldbus Controller 750-872/020-000 • 43 Hardware 3.1.3.2 Device Supply ® The PFC is powered via terminal blocks with CAGE CLAMP connections. The Device Supply generates the necessary voltages to power the electronics of the controller and the internal electronics of the connected I/O modules.
Page 52: Fieldbus Connection
44 • Fieldbus Controller 750-872/020-000 Hardware 3.1.3.3 Fieldbus Connection Connection to the fieldbus is by a RJ45 connector. The RJ45 socket on the fieldbus controller is wired per the 100BaseTX standard. The specification for the connecting cable is a twisted pair cable of Category 5. Cables of type S- UTP (Screened-Unshielded Twisted Pair) and STP (Shielded Twisted Pair) with a maximum segment length of 100 meters may be used.
Page 53: Configuration And Programming Interface
Fig. 3.1-2: Configuration and Programming Interface g01xx07e A WAGO 750-920 Communication Cable is used to connect the 4 pin male header and with a PC’s 9-pin RS232 interface. Warning The communication cable 750-920 must not be connected or disconnected...
Page 54: Operating Mode Switch
RUN in any position of the operating mode switch! An operating mode (i.e., RUN/STOP) is internally changed at the end of a PLC cycle. Note The position of the mode switch is not important when starting or stopping the PFC application from WAGO-I/O-PRO. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 55: Hardware Address (Mac-Id)
3.1.3.7 Hardware Address (MAC-ID) Each WAGO Telecontrol controller is supplied from the factory with a unique and internationally unambiguous physical ETHERNET address, also referred to as MAC-ID (Media Access Control Identity). This is located on the rear of the controller and on a self-adhesive tear-off label on the controller’s side.
Page 56: Operating System
The PLC cycle starts following a fault free start-up when the Operating Mode Switch is in the top position or by a start command from the WAGO-I/O-PRO CAA. The controller starts a PLC cycle by first reading the fieldbus data, I/O modules, and time data. Next, the PLC program in RAM is processed (scanned).
Page 57 Fieldbus Controller 750-872/020-000 • 49 Operating System Switching on the supply voltage Is a PLC program in the Flash memory ? “I/O” LED is blinking orange PLC program transfer from the flash memory to RAM Determination of the I/O modules...
Page 58: Process Image
(data width/bit width > 0). The maximal length of a node is limited to 64 I/O modules. Note Use of the WAGO 750-628 Bus Extension Coupler Module and the 750-627 Extension End Module enables support of up to 250 I/O modules on the 750-872/020-000 controller.
Page 59 For future protocol additions, the area above word 1532 is reserved for additional PFC variables. With all WAGO fieldbus controllers, the method used by PLC functions to access process data is independent of the fieldbus system. This access always takes place via an application-related IEC 61131-3 program.
Page 60: Example Of A Process Input Image
52 • Fieldbus Controller 750-872/020-000 Process Image 3.1.5.2 Example of a Process Input Image The following figure is an example of a process input image. The configuration includes 16 digital and 8 analog inputs. Therefore, the process image has a total data length of 9 words (8 words for the analog data and 1 word for the digital inputs).
Page 61: Example Of A Process Output Image
Fieldbus Controller 750-872/020-000 • 53 Process Image 3.1.5.3 Example of a Process Output Image The following figure is an example of a process output image. The configuration includes 2 digital and 4 analog outputs. Therefore, the process image has a total data length of 5 (4 words for the analog data and 1 word for the digital outputs).
Page 62: Process Data Architecture
Intel format. More Information You can find the fieldbus specific process data architecture for all I/O Modules of the WAGO-I/O-SYSTEM 750 and 753 in the chapter „Process Data Architecture“. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 63: Data Exchange
IP address. Typically, the Telecontrol controller of the WAGO-I/O-SYSTEM is a slave device. But, with the use of the WAGO-I/O-PRO CAA programming tool, the PFC can additionally perform master functions. A controller is able to produce a defined number of simultaneous socket connections to other network subscribers: •...
Page 64: Memory Areas
56 • Fieldbus Controller Fieldbus Controller 750-872/020-000 application program, whereby the data addressing is different than the fieldbus addressing. 3.1.6.1 Memory Areas Programmable Fieldbus Controller memory area for input data word 0 I/O modules input modules word 255 word 256...
Page 65 512 kByte After a successful start-up, the PFC cycle starts when the operating mode switch is turned to its upper position or by a start command from WAGO-I/O-PRO CAA. NOVRAM The remanent memory is non volatile memory, i.e. all values are Remanent retained following a voltage failure.
Page 66: Addressing
58 • Fieldbus Controller Fieldbus Controller 750-872/020-000 3.1.6.2 Addressing 3.1.6.2.1 Addressing the I/O Modules The arrangement of the I/O modules in a node is flexible and up to the user. Although, the user must verify that the power jumper contacts from one I/O module to the next are compatible and at the same voltage level.
Page 67 Fieldbus Controller • 59 Fieldbus Controller 750-872/020-000 Word 0-255: First address range I/O module data: Data Address 0.0 ... 0.8... 1.0 ... 1.8..254.0 ... 254.8... 255.0 ... 255.8... 0.15 1.15 254.7 254.15 255.7 255.15 ..Byte ..Word ..
Page 68: Absolute Addresses
60 • Fieldbus Controller Fieldbus Controller 750-872/020-000 Overview of the IEC 61131-3 address ranges: Address range MODBUS Description Access Access phys. Inputs read read Physical Inputs (%IW0 ... %IW255 and %IW512 ... %IW1275) phys. Outputs read/write read/write Physical Outputs (%QW0 ... %QW255 and %QW512 ...
Page 69 Fieldbus Controller • 61 Fieldbus Controller 750-872/020-000 Addressing Example: Address calculation (depending upon the word address): Bit address: word address .0 to .15 Byte address: 1. Byte: 2 x word address 2. Byte: 2 x word address + 1 Dword address:...
Page 70 62 • Fieldbus Controller Fieldbus Controller 750-872/020-000 Adding an offset of 0x0200 to the MODBUS output address lets you read back output data. Note For MODBUS mapping, all output data over 256 words resides in the memory area 0x6000 to 0x62FC, and can be read back with an offset of 1000 (0x1000) added onto the MODBUS address.
Page 71: Data Exchange Between Ethernet/Ip Master And I/O Modules
Fieldbus Controller • 63 Fieldbus Controller 750-872/020-000 3.1.6.4 Data Exchange between EtherNet/IP Master and I/O Modules Data exchange between the EtherNet/IP Master and the I/O modules is object oriented. Each node in the network is represented as a collection of objects.
Page 72: Data Exchange Between Plc Functionality (Cpu) And I/O Modules
64 • Fieldbus Controller Fieldbus Controller 750-872/020-000 3.1.6.5 Data Exchange between PLC Functionality (CPU) and I/O Modules Through absolute addresses, the PLC functionality of the controller can directly address the I/O module data. The PFC addresses the input data with absolute addresses. The data can then be processed, internally in the controller, through the IEC 61131-3 program, whereby the flags are filed in a permanent memory area.
Page 73: Example Modbus/Tcp Master And Plc Functionality (Cpu)
Fieldbus Controller • 65 Fieldbus Controller 750-872/020-000 3.1.6.6.1 Example MODBUS/TCP Master and PLC functionality (CPU) Data Access by the MODBUS/TCP Master With MODBUS TCP, the fieldbus master can access controller data as words or bits. When accessing the first 256 words of memory from the Fieldbus port (physical I/O modules), the I/O modules start with the address 0 for both bit and word access.
Page 74: Example Of Use
66 • Fieldbus Controller Fieldbus Controller 750-872/020-000 3.1.6.6.1.1 Example of Use: Ethernet LINK TxD/RxD ERROR I/O Modules 750- 402 Bit 1 Bit 1 Bit 1 Word1 Word1 Word1 Process input image Word2 Word2 Bit 4 Bit 2 (Word) Addresses MODBUS...
Page 75: Starting Up A Fieldbus Node
Additionally in the following chapters, it covers details regarding PFC programming with WAGO-I/O-PRO CAA and provides information about the built-in HTML web pages. 3.1.7.1 Variation 1: Start up with the WAGO Ethernet Settings This procedure contains the following steps: 1. Connecting the PC and fieldbus node 2.
Page 76: Allocating The Ip Address To The Fieldbus Node
WAGO Ethernet Settings by way of an example. Note You can download a free copy of the WAGO Ethernet Settings" which you can find on the „ELECTRONICC Tools and Docs“ CD ROM (Item-No.: 0888-0412-0001-0101) and on the WAGO Web pages under www.wago.com, "Service...
Page 77: Variation 2:Starting Up With The Wago Bootp Server
5. Function of the fieldbus tests 6. Deactivating the BootP Protocol Note When starting up the 750-872/020-000 controller, there are a number of important factors to consider, since the start-up of this controller differs significantly in certain respects from the 750-842 ETHERNET controller.
Page 78: Determining Ip Addresses
3.1.7.2.4 Allocating the IP Address to the Fieldbus Node A prerequisite for communication with the controller is the assignment of an IP address. The address can be transferred through the "WAGO BootP Server" or a PFC WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 79 The following describes how to allocate the IP address for a fieldbus node using the WAGO BootP server by way of an example. You can download a free copy of the WAGO’s BootP server over the Internet under at http://www.wago.com/- “Service“/“Downloads“/“Software“/“ELECTRONICC“/-...
Page 80 File menu, menu item Save, and then close the editor. BootP Server 8. Now open the dialog window for the WAGO BootP server by going to the Start menu on your screen surface, menu item Program / WAGO Software / WAGO BootP Server and click on WAGO BootP Server.
Page 81: Testing The Function Of The Fieldbus Node
67, port 68) in the operating system have not been defined. DO NOT BE ALARMED, THIS IS THE CORRECT OPERATION FOR THIS EXAMPLE. Fig. 3.1-13 Dialog Window of the WAGO BootP Server with Messages P012909d 10. Now it is important to restart the controller by resetting the hardware. To...
Page 82: Deactivating The Bootp Protocol
74 • Fieldbus Controller Fieldbus Controller 750-872/020-000 4. When the test has been performed successfully, you can close the DOS prompt. 5. Since the IP address is still temporarily stored in the controller. Do not cycle power on the controller until the BootP protocol has been disabled in the PFC.
Page 83 Fieldbus Controller • 75 Fieldbus Controller 750-872/020-000 5. To logon as the administrator, enter the user name admin and the password wago. Note If the controller does not display the opening HTML page, make sure your web browser is setup to bypass the proxy server for local addresses.
Page 84: Transmission Mode Configuration
76 • Fieldbus Controller Fieldbus Controller 750-872/020-000 3.1.7.3 Transmission Mode Configuration Both the controller and its link partner must be configured for the same transmission mode to ensure reliable and fast communication using the Telecontrol controller, which means they must operate either in (default) autonegotiation mode or full or half duplex mode with 10/100Mbit static transmission rate.
Page 85: Programming The Pfc With Wago-I/O-Pro Caa
2. Choose WAGO_750-872/020-000 from the pull down list and click the OK button. 3. You can now create a new project in WAGO-I/O-PRO CAA via its menu item File/New. A dialog window will prompt you to select the programming language (i.e., IL, LD, FBD, SFC, etc.).
Page 86 Fieldbus Controller 750-872/020-000 Configuration with the WAGO-I/O-PRO CAA I/O-Configurator 1. To configure the I/O of the fieldbus node in WAGO-I/O-PRO, select the Resources tab in the left window of the screen, then double click on PLC configuration in the tree structure.
Page 87 IEC 61131-3 program tool. The configuration file “EA-config.xml” is generated as soon as you compile the project. More information For a detailed description on how to use the software WAGO-I/O-PRO CAA and the I/O-Configurator, please refer to the Online-Help of WAGO-I/O-PRO CAA.
Page 88 2. To access the file system of the controller, enter the IP address of the controller in the FTP client. Also, set the user name to admin and the password to wago. The “EA-config.xml” file can be found in the folder etc. on the PFC server.
Page 89: Wago-I/O-Pro Caa Library Elements For Ethernet
For information on the function blocks as well as details regarding the use of the software, please refer to the WAGO-I/O-PRO CAA manual or the onlinehelp. An electronic copy of the manual can be found on WAGO’s web site: www.wago.com.
Page 90: Restrictions In The Function Range
The basic of WAGO-I/O-PRO CAA, the standard programming system CoDeSys from the company 3S, has three process variants "HMI", "TargetVisu" and "WebVisu"within the integrated visualisation system. The 750-872/020-000 Ethernet controller supports the process variants "HMI" and "WebVisu". There are technological limitations depending on the process variant.
Page 91 "tsk" command. Network Loading The Ethernet controller 750-872/020-000 has just one CPU, which is responsible both for running the PLC program and for handling the network traffic. Ethernet communication demands that every telegram received is processed, regardless of whether it is intended for the 750-872/020-000 or not.
Page 92: Some Basic Facts About Iec Tasks
84 • Fieldbus Controller Fieldbus Controller 750-872/020-000 3.1.8.3 Some Basic Facts about IEC Tasks Attention Consider please with the programming of your IEC tasks the following facts. • All IEC tasks must have a different priority level. If two tasks have the same level, an error message is displayed when the program is compiled.
Page 93: Overview Of The Most Important Task Priorities (Descending Priority)
Therefore, IEC background tasks are used for time-consuming and time- uncritical jobs (e.g., SysLibFile functions) More information For detailed information on the programming tool WAGO-I/O-PRO CAA, please refer to the WAGO-I/O-PRO CAA manual. An electronic copy of this manual can be found on WAGO’s web site: www.wago.com WAGO-I/O-SYSTEM 750...
Page 94: System Events
Possible events are for instance: Stop, Start, Online Change. The complete list of all system events is specified in WAGO-I/O-PRO CAA /register "Resources"/"Task configuration"/"System events".
Page 95: Iec 61131-3-Program Transfer
For information on the installation of the communication drivers, as well as details regarding the use of the software, please refer to the WAGO-I/O-PRO CAA manual. An electronic copy of this manual can be found on WAGO’s web site: www.wago.com...
Page 96: Transmission Via The Serial Interface
Fieldbus Controller 750-872/020-000 3.1.8.4.1 Transmission via the Serial Interface Use the WAGO communication cable to produce a physical connection to the serial interface. This is contained in the scope of delivery of the programming tool IEC 1131-3, order No.: 759-333/000-002, or can be purchased as an accessory under order No.: 750-920.
Page 97: Transmission By The Fieldbus
WAGO-I/O-PRO CAA, this driver and its parameters are entered in the Communication Parameters dialog. 1. Start WAGO-I/O-PRO CAA by using the Windows Start menu, find and click on the WAGO-I/O-PRO program name (i.e., CoDeSys V2.3). 2. In the Online program menu, click Communication parameters. The dialog window Communication parameters opens.
Page 98: Information On The Web-Based Management System
90 • Fieldbus Controller Fieldbus Controller 750-872/020-000 3.1.9 Information on the Web-Based Management System In addition to the web pages already described in section 3, the following HTML pages are stored in your controller and provide information and configuration options. After opening the default page of your controller, you can access these pages via the hyperlinks in the left navigation bar of the browser window.
Page 99 Fieldbus Controller • 91 Fieldbus Controller 750-872/020-000 Port Under the link Port you can get the HTML page "Port configuration" on that you can activate or deactivate wished protocols. FTP, HTTP, WebVisu, MODBUS TCP, MODBUS UDP, CoDeSys and BOOTP are activated by default.
Page 100 92 • Fieldbus Controller Fieldbus Controller 750-872/020-000 Watchdog Under the Watchdog link, you can view and change settings for the MODBUS Watchdog. Clock Under the Clock link, you can view and change settings for the controller' s internal real time clock.
Page 101 Fieldbus Controller • 93 Fieldbus Controller 750-872/020-000 Security Under the Security link, you can setup read/write access rights by using passwords for different user groups in order to protect against configuration changes. The following groups are provided for this: User...
Page 102 94 • Fieldbus Controller Fieldbus Controller 750-872/020-000 Ethernet Under the Ethernet link, you can view and change settings for the data transmission rate and the bandwidth limitation for the Ethernet transmission. These should be changed however only in completely special cases.
Page 103 Fieldbus Controller • 95 Fieldbus Controller 750-872/020-000 Under the PLC link you can define the status of the outputs, if your application program stops. If there is a checkmark in the small box behind "Enabled", all outputs are set to zero, otherwise the outputs remain to the last current value.
Page 104 In this case, always fieldbus 1, that means Modbus_TCP (Default), has the r write access rigths on the outputs. More Information Please, find detailed information about the WAGO-I/O-PRO CAA I/O- Configurator in chapter 3.1.7 "Starting up a Fieldbus Node". In the right window of this web page is displayed the physical node configuration and the current process values, if the file 'genIOconf.xml' was...
Page 105 Fieldbus Controller • 97 Fieldbus Controller 750-872/020-000 Samples Under the Samples link, a sample HTML page is provided, which you can use as a starting point to create your own web page. You can then store this or any other web page you have created into the file system of the controller using FTP download.
Page 106: Configuration Of Snmp
98 • Fieldbus Controller Fieldbus Controller 750-872/020-000 3.1.10 Configuration of SNMP The Simple Network Management Protocol (SNMP) is responsible for the transport of control data, which enables the exchange of management information, status and statistical data between individual network components and a management system. Version 1 of the protocol is supported.
Page 107: System Group
Fieldbus Controller • 99 Fieldbus Controller 750-872/020-000 3.1.10.1.1 System Group The System Group contains general information to the coupler/controller. Identifier Entry Description cess 1.3.6.1.2.1.1.1 sysDescr This entry contains the device identification. The entry is fix coded e. g. on "WAGO 750-872/020-000".
Page 108: Address Translation Group
100 • Fieldbus Controller Fieldbus Controller 750-872/020-000 1.3.6.1.2.1.2.2.1.8 ifOperStatus This entry indicates the current condition of the interface. 1.3.6.1.2.1.2.2.1.9 ifLastChange This entry indicates the value of sysUpTime at the time in which the condition changed for the last time. 1.3.6.1.2.1.2.2.1.1...
Page 109: Ip Group
Fieldbus Controller • 101 Fieldbus Controller 750-872/020-000 1.3.6.1.2.1.3.1.1.3 atNetAddress R/W Contains the IP address associated to the hardware address. 3.1.10.1.4 IP Group The IP Group contains information on the IP assignment. Identifier Entry Description cess 1.3.6.1.2.1.4.1 ipForwarding R/W 1 : Host is router; 2 : Host is not a router 1.3.6.1.2.1.4.2...
Page 110: Iproute Table
102 • Fieldbus Controller Fieldbus Controller 750-872/020-000 cards 3.1.10.1.5 IpRoute Table The IP Route Table contains information about the Routing table in the coupler/controller. Entry Description Identifier cess 1.3.6.1.2.1.4.21 ipRouteTable IP Routing table 1.3.6.1.2.1.4.21.1 ipRouteEntry A Routing entry for a special destination 1.3.6.1.2.1.4.21.1.1...
Page 111 Fieldbus Controller • 103 Fieldbus Controller 750-872/020-000 contain the ICMP specific errors 1.3.6.1.2.1.5.3 icmpInDestUnreachs Number of received ICMP destination unreachable messages 1.3.6.1.2.1.5.4 icmpInTimeExcds Number of received ICMP time exceeded messages 1.3.6.1.2.1.5.5 icmpInParmProbs Number of received ICMP parameter problems messages 1.3.6.1.2.1.5.6...
Page 112: Tcp Group
104 • Fieldbus Controller Fieldbus Controller 750-872/020-000 3.1.10.1.8 TCP Group Identifier Entry Description cess 1.3.6.1.2.1.6.1 tcpRtoAlgorithm Retransmission time ( 1 = another, 2 = constant, 3 = MIL standard 1778, 4 = Jacobson) 1.3.6.1.2.1.6.2 tcpRtoMin Minimum value for the retransmission timer 1.3.6.1.2.1.6.3...
Page 113: Snmp Group
Fieldbus Controller • 105 Fieldbus Controller 750-872/020-000 1.3.6.1.2.1.7.3 udpInErrors Number of received UDP frames that could not be passed on the appropriate applications for other reasons. 1.3.6.1.2.1.7.4 udpOutDatagrams Number of sent UDP frames 1.3.6.1.2.1.7.5 udpTable For each application, which received UDP frames, a table entry is produced 1.3.6.1.2.1.7.5.1...
Page 114: Egp-Group
106 • Fieldbus Controller Fieldbus Controller 750-872/020-000 1.3.6.1.2.1.11.21 snmpOutNoSuch Number of sent SNMP frames that Names contained the result noSuchName 1.3.6.1.2.1.11.22 snmpOutBadValues Number of sent SNMP frames that contained the result bad value 1.3.6.1.2.1.11.24 SnmpOutGenErrs Number of sent SNMP frames that contained the result genErrs 1.3.6.1.2.1.11.25 snmpOutGetRequests R...
Page 115: Led Display
The second group of LEDs are three-color LEDs (red/green/orange). One of the LED is labelled ‘I/O’, and displays the status of the internal bus. The other is labelled ‘USR’, and is programmable with WAGO-I/O-PRO CAA. The third group uses solid colored LEDs. They are located on the right-hand side of the controller power supply.
Page 116: Fieldbus Status
108 • Fieldbus Controller Fieldbus Controller 750-872/020-000 3.1.11.1 Fieldbus status The health of the ETHERNET Fieldbus is signalled through the top LED group (‘LINK‘, ‘MS‘, ‘NS‘ and ‘TxD/RxD‘). The two-colored LEDs ‘MS’ (module status) and ‘NS’ (network status) are solely used by the Ethernet/IP protocol.
Page 117: Node Status - Blink Code From The 'I/O' Led
Fieldbus Controller • 109 Fieldbus Controller 750-872/020-000 3.1.11.2 Node Status – Blink code from the 'I/O' LED The ‘I/O‘-LED displays the communication status of the internal bus. Additionally, this LED is used to display fault codes (blink codes) in the event of a system error.
Page 118 110 • Fieldbus Controller Fieldbus Controller 750-872/020-000 Switching on the power supply Coupler/Controller starts up “I/O”-LED is blinking Test o.k.? “I/O” LED 1st flash sequence (Introduction of the error indication) 1st break “I/O” LED 2nd flash sequence Error code (Number of flash cycles) 2nd break “I/O”...
Page 119 Fieldbus Controller • 111 Fieldbus Controller 750-872/020-000 I/O module(s) with unsupported Detect faulty I/O module as data type follows: turn off the power supply. Place the end module in the middle of the fieldbus node. Turn the power supply on again.
Page 120 112 • Fieldbus Controller Fieldbus Controller 750-872/020-000 Fault when reading out the time Adjust the clock and keep upright from the RTC the supply voltage of the bus coupler for at least 15 minutes for loading of the Goldcaps. Fault when writing the time in...
Page 121 Fieldbus Controller • 113 Fieldbus Controller 750-872/020-000 Fault code 3: "Internal bus protocol fault" Fault argument Fault description Trouble shooting Internal bus communication If the fieldbus node comprises malfunction; faulty device can’t internal system supply modules be detected (750-613), make sure first that the power supply of these modules is functioning.
Page 122 114 • Fieldbus Controller Fieldbus Controller 750-872/020-000 Fault code 4: "Internal bus physical fault" Fault argument Fault description Trouble shooting Error in internal bus data Turn off the power supply of the communication or interruption of node. Place an I/O module with...
Page 123 Fieldbus Controller • 115 Fieldbus Controller 750-872/020-000 Fault code 6: "Fieldbus specific errors" Fault argument Fault description Trouble shooting Invalid MACID Turn off the power supply of the node, exchange fieldbus coupler and turn the power supply on again. Ethernet Hardware initialization...
Page 124: Usr'-Led
3.1.11.3 ‘USR‘-LED The state of the ‘USR‘ LED is programmable with WAGO-I/O-PRO CAA. Functions in the program library ”Visual.lib“ can be used to control the LED state. One of the many possible uses of this LED is to indicate the RUN/STOP state of your controller.
Page 125: Supply Voltage Status
Fieldbus Controller • 117 Fieldbus Controller 750-872/020-000 3.1.11.4 Supply voltage status The two green LED’s in the controller supply section, display the status of the supply voltage. The left LED (A) indicates the status of the 24 V supply for the coupler.
Page 126: Internal Bus Fault
118 • Fieldbus Controller Fieldbus Controller 750-872/020-000 More information For detailed information to the Watchdog register see the Chapters "MODBUS Functions"; "Watchdog (Fieldbus failure)" and "Watchdog Register". 3.1.12.2 Internal bus fault When an internal bus fault occurs (e.g., an I/O module is removed), all output modules turn off.
Page 127: Technical Data
ETHERNET specification Twisted Pair S-UTP 100 Ω cat. 5 Transmission medium Buscoupler connection RJ45 Max. length of fieldbus segment 100 m between hub station and 750-872/020-000; max. length of network limited by ETHERNET specification Baud rate 10/100 Mbit/s Protocols...
Page 128 120 • Fieldbus Controller Fieldbus Controller 750-872/020-000 EMC CE-Emission of interference acc. to EN 50081-2 (94) Approvals (cf. Chapter 2.2) Conformity Marking WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 129: Fieldbus Communication
The TCP/IP protocol stack offers a high degree of reliability for the transmission of information. In the ETHERNET based (programmable) fieldbus couplers and controllers developed by WAGO, usually various application protocols have been implemented on the basis of the TCP/IP stack. These protocols allow the user to create applications (master applications) with standardized interfaces and transmit process data via an ETHERNET interface.
Page 130: Network Architecture - Principles And Regulations
122 • Fieldbus Communication ETHERNET The WAGO ETHERNET TCP/IP fieldbus node does not require any additional master components other than a PC with a network card. So, the fieldbus node can be easily connected to local or global networks using the fieldbus connection.
Page 131: Transmission Media
For thin coaxial cable, the “2” is rounded up from the 185 meter maximum length for individual thin coaxial segments. The “T” and “F” stand for ‘twisted pair’ and ‘fiber optic’, and simply indicate the cable type. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 132 Fieldbus Communication ETHERNET 10Base-T, 100BaseTX Either the 10BaseT standard or 100BaseTX can be used for the WAGO ETHERNET fieldbus node. The network architecture is very easy and inexpensive to assemble with S- UTP cable as transmission medium or with cables of STP type.
Page 133: Network Topologies
“data traffic cop” where the hub “polices” the data coming in and going out of the individual ports, so the data will only be transmitted to the required node. WAGO recommends using a switch rather then a hub, this will allow for a more deterministic architecture.
Page 134 It consists of groups of star-configured workstations connected to a linear bus backbone cable. Tree topologies allow for the expansion of an existing network, and enables schools, etc. to configure a network to meet their needs. Fig. 4-5: Tree Topology G012904e WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 135 Specifications may vary depending on the selected topology, the transmission media and coupler modules used in industrial environments, as well as the use of components from different manufacturers in a network. Therefore, the specifications given here are only intended as recommendations. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 136: Coupler Modules
Tab. 4-2: Comparison of Coupler Modules for Networks 4.1.2.4 Transmission Mode Some ETHERNET based WAGO couplers/controllers support both 10Mbit/s and 100Mbit/s for either full or half duplex operation. To guarantee a safe and fast transmission, both these couplers/controllers and their link partners must be configured for the same transmission mode.
Page 137: Static Configuration Of The Transmission Mode
If the device is duplex operation. operating in full-duplex mode with static configuration, a duplex mode mismatch will occur (see above). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 138: Important Terms
Collisions may occur and messages have to be repeatedly transmitted as a result of the large amount of data traffic. The delay time in a Shared ETHERNET cannot be easily calculated or predicted. Fig. 4-6: Principle of Shared ETHERNET G012910e WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 139 The message is then only sent to the node with the correct target address. This reduces the data traffic over the network, extends the bandwidth and prevents collisions. The runtimes can be defined and calculated, making the Switched Ethernet deterministic. Fig. 4-7: Principle of Switched ETHERNET G012909e WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 140: Network Communication
The UDP layer is also a transport protocol like TCP, and is arranged above the IP layer. In contrast to the TCP protocol, UDP is not connection oriented. That means there are no monitoring mechanisms for data exchange between sender and receiver. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 141 EtherNet/IP. Application device profiles (e.g. positioning controllers, semi- conductors, pneumatic valves) CIP application objects library CIP data management services (explicit messages, I/O messages) CIP message routing, connection management Encapsulation protocol TCP, UDP Ethernet (physical interface, CSMA/CD) WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 142: Communication Protocols
Fieldbus Communication ETHERNET 4.1.3.2 Communication Protocols In addition to the ETHERNET standard, the following important communication protocols are implemented in the WAGO ETHERNET based (programmable) fieldbus couplers and controllers: • IP Version 4 (Raw-IP and IP-Multicast ) • TCP • UDP •...
Page 143: Ethernet
The address has a fixed length of 6 Bytes (48 Bit) and contains the address type, the manufacturer’s ID, and the serial number. Examples for the MAC-ID of a WAGO ETHERNET fieldbus coupler (hexadecimal): 00 ETHERNET does not allow addressing of different networks.
Page 144: Ip-Protocol
The highest bit in Class A networks is always ‘0’. Meaning the highest byte can be in a range of ’0 0000000’ to ‘0 1111111’. Therefore, the address range of a Class A network in the first byte is always between 0 and 127. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 145 192.000.000.XXX - Ca. 2 million Class C 223.255.255.XXX Each WAGO ETHERNET (programmable) fieldbus coupler or controller can be easily assigned an IP address via the implemented BootP protocol. For small internal networks we recommend selecting a network address from Class C.
Page 146 • Class C Subnet mask: .255 .255 Depending on the subnet division the subnet masks may, however, contain other values beyond 0 and 255, such as 255.255.255.128 or 255.255.255.248. Your network administrator allocates the subnet mask number to you. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 147 IP-Header IP-Data Fig. 4-11: IP Packet The most important information in the IP header is the IP address of the transmitter and the receiver and the transport protocol used. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 148: Raw Ip
The result is known as the acknowledgement number and is returned with the next self-sent packet as an acknowledgement. This ensures that the lost TCP packets are detected and resent, if necessary, in the correct sequence. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 149: Udp
This protocol combines the IP address with the physical MAC address of the respective Ethernet card. It is always used when data transfer to an IP address takes place in the same logical network in which the sender is located. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 150: Administration And Diagnosis Protocols
The dynamic configuration of the IP address via a BootP server offers the user a flexible and simple design of his network. The WAGO BootP server allows any IP address to be easily assigned for the WAGO (programmable) fieldbus coupler or controller.
Page 151: Http (Hypertext Transfer Protocol)
(e.g. whether IP configuration of the coupler/controller is to be performed via the DHCP protocol, the BootP protocol or from the data stored in the EEPROM). The HTTP server uses port number 80. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 152: Dhcp (Dynamic Host Configuration Protocol)
IP address. The time for the renewing should be about one half of the lease time. The rebinding time should be about of the lease time. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 153: Dns (Domain Name Systems)
RAM disk. To permanently store the data of the RAM disk, the information is additionally copied into the flash memory. The data is stored in the flash after the file has been closed. Due to the storage process, access times during write cycles are long. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 154 The TFTP (Trival File Transfer Protocol) is not supported by some of the couplers/controllers. More information You can find a list of the exact available implemented protocols in the chapter "Technical Data" to the fieldbus coupler and/or controller. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 155: Smtp (Simple Mail Transfer Protocol)
Thus the user is able to have a simple access from the respective fieldbus on the fieldbus node. There are based on ETHERNET couplers/controllers available developed by WAGO, with the following possible application protocols: • MODBUS TCP (UDP) •...
Page 156: Modbus Functions
Length Description Discrete Inputs 1 Bit Digital Inputs Coils 1 Bit Digital Outputs Input Register 16 Bit Analog-Input data Holding Register 16 Bit Analog-Output data For each basic data type one or more „FunctionCodes“ are defined. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 157 The examples listed use the hexadecimal system (i.e.: 0x000) as their numerical format. Addressing begins with 0. The format and beginning of the addressing may vary according to the software and the control system. All addresses then need to be converted accordingly. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 158: Use Of The Modbus Functions
0x000C MODBUS addresses 0x000D 0x0200 0x000E 0x000F 0x0201 Fig. 4-13: Use of the MODBUS Functions G012918e Attention It is recommended that analog data be accessed with register functions (1) and digital data with coil functions (2). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 159: Description Of The Modbus Functions
4.2.3 Description of the MODBUS Functions All MODBUS functions are executed as follows: A MODBUS TCP master (e.g., a PC) makes a request to the WAGO fieldbus node using a specific function code based on the desired operation. The WAGO fieldbus node receives the datagram and then responds to the master with the proper data, which is based on the master’s request.
Page 160: Function Code Fc1 (Read Coils)
0 0 0 1 0 0 1 0 Coil: 7 6 5 4 3 2 1 0 Exception Byte Field name Example ..Byte 7 MODBUS function code 0x81 Byte 8 Exception code 0x01 or 0x02 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 161: Function Code Fc2 (Read Input Discretes)
0 0 0 1 0 0 1 0 Coil: 7 6 5 4 3 2 1 0 Exception Byte Field name Example ..Byte 7 MODBUS function code 0x82 Byte 8 Exception code 0x01 or 0x02 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 162: Function Code Fc3 (Read Multiple Registers)
The contents of register 0 are displayed by the value 0x1234 and the contents of register 1 is 0x2345. Exception Byte Field name Example ..Byte 7 MODBUS function code 0x83 Byte 8 Exception code 0x01 or 0x02 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 163: Function Code Fc4 (Read Input Registers)
The contents of register 0 are shown by the value 0x1234 and the contents of register 1 is 0x2345. Exception Byte Field name Example ..Byte 7 MODBUS function code 0x84 Byte 8 Exception code 0x01 or 0x02 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 164: Function Code Fc5 (Write Coil)
MODBUS function code 0x05 Byte 8, 9 Reference number 0x0001 Byte 10 Value 0xFF Byte 11 0x00 Exception Byte Field name Example ..Byte 7 MODBUS function code 0x85 Byte 8 Exception code 0x01, 0x02 or 0x03 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 165: Function Code Fc6 (Write Single Register)
Byte 7 MODBUS function code 0x06 Byte 8, 9 Reference number 0x0001 Byte 10, 11 Register Value 0x1234 Exception Byte Field name Example ..Byte 7 MODBUS function code 0x85 Byte 8 Exception code 0x01 or 0x02 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 166: Function Code Fc11 (Get Comm Event Counter)
0x0000 Byte 10, 11 Event Count 0x0003 The event counter shows that 3 (0x0003) events were counted. Exception Byte Field name Example ..Byte 7 MODBUS function code 0x85 Byte 8 Exception code 0x01 or 0x02 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 167: Function Code Fc15 (Force Multiple Coils)
Byte 7 MODBUS function code 0x0F Byte 8, 9 Reference number 0x0000 Byte 10, 11 Bit Count 0x0010 Exception Byte Field name Example ..Byte 7 MODBUS function code 0x8F Byte 8 Exception code 0x01 or 0x02 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 168: Function Code Fc16 (Write Multiple Registers)
Byte 7 MODBUS function code 0x10 Byte 8, 9 Reference number 0x0000 Byte 10, 11 Word Count 0x0002 Exception Byte Field name Example ..Byte 7 MODBUS function code 0x85 Byte 8 Exception code 0x01 or 0x02 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 169: Function Code Fc22 (Mask Write Register)
MODBUS function code 0x10 Byte 8-9 Reference Number 0x0000 Byte 10-11 AND-Mask 0x0000 Byte 12-13 OR-Mask 0xAAAA Exception Byte Field name Example ..Byte 7 MODBUS function code 0x85 Byte 8 Exception code 0x01 or 0x02 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 170: Function Code Fc23 (Read/Write Multiple Registers)
Register Values 0x0004 (B+1) 0x5678 Exception Byte Field name Example ..Byte 7 MODBUS function code 0x97 Byte 8 Exception code 0x01 or 0x02 Note If register areas for read and write overlap, the results are undefined. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 171: Modbus Register Mapping
PFC-IN-Area ... 1023 ... 0x03FF ... %IW511 Volatile PFC Input variables 1024 0x0400 Modbus Exception: ... 4095 ... 0x0FFF “Illegal data address” 4096 0x1000 Configuration Register ... 12287 ... 0x2FFF (see following Chapter 4.2.5.3 Configuration Functions) WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 172 Bit Access Writing (with FC5 and FC15): Modbus-Address Memory Range Description [dec] [hex] 0x0000 Physical Output Area (1) First 512 digital outputs ... 511 ... 0x01FF 0x0200 Physical Output Area (1) First 512 digital outputs ... 1023 ... 0x03FF WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 173: Internal Variables
Number of digital input data in the process image (in bits) 0x1028 Boot configuration 0x1029 MODBUS-TCP statistics 0x102A R Number of TCP connections 0x1030 Configuration MODBUS/TCP Timeout 0x1031 Read out the MAC-ID of the controller 0x1050 Diagnosis of the connected I/O Modules WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 174: Description Of The Internal Variables
If the watchdog times out, a fieldbus failure has occurred. In this case, the fieldbus controller answers all following MODBUS TCP/IP requests with the exception code 0x0004 (Slave Device Failure). In the controller special registers are use to setup the watchdog by the master (Register addresses 0x1000 to 0x1008). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 175: Watchdog Register
Bit 1001.0 corresponds to function code1, Bit 1001.1 corresponds to function code2... A value of 0xFF enables Modbus functions code 1 through 16 to reset the watchdog. It is not possible to modify this value while the watchdog is running. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 176 0xAAAA followed by 0x5555. Register address 0x1006 (MODBUS Address 404103) Designation While watchdog is running, WD_RUNNING Access read Default 0x0000 Description Current watchdog status. at 0x0000: Watchdog not active, at 0x0001: Watchdog active. at 0x0002: Watchdog exhausted. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 177 4. At this point, the fieldbus master must continuously use function code 5 (Force Single Coil) within the specified time to reset the watchdog timer. If time between requests exceeds 1 second, a watchdog timeout error occurs. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 178 0X55AA into it the Simply Stop Watchdog register (0x1008). Register Adresse 0x100B Value Save Watchdog Parameter Access write Default 0x0000 Description With writing of '1' in register 0x100B the registers 0x1000, 0x1001, 0x1002 are set on remanent. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 179: Diagnostic Functions
Register address 0x1024 (MODBUS Address 404133) Designation CnfLen.DigitalOut Access read Description Number of digital output bits in the process image Register address 0x1025 (MODBUS Address 404134) Designation CnfLen.DigitalInp Access read Description Number of digital input bits in the process image WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 180 Default value is 0 (timeout disabled). Register address 0x1031 (MODBUS Address 404146, with a word count of 3) Designation Read the MAC-ID of the controller Access read Description This register gives the MAC-ID, with a length of 3 words WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 181 Bit position 0 -> Input module Bit position 1 -> Output module Bit position 2-7 -> not used Bit position 8-14 -> module size in bits Bit position 15 -> Designation digital module WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 182 (Write sequence 0xAA55 or 0x55AA) Description The standard files (HTML pages) of the Controller are extracted and written into the Flash. Register address 0x2043 since Firmware version 9 Designation 0x55AA Access write Description Factory Settings WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 183: Firmware Information
Register address 0x2011 (MODBUS Address 408210, with a word count of 1) Value Series code, INFO_SERIES Access Read Description WAGO serial number, e. g. 0750 for WAGO-I/O-SYSTEM 750 Register address 0x2012 (MODBUS Address 408211, with a word count of 1) Value Item number, INFO_ITEM Access Read Description WAGO item number, e.
Page 184: Constant Registers
Register address 0x2003 (MODBUS Address 408196) Value Mask 1, GP_AAAA Access Read Description This constant is used to verify that all bits are accessible to the fieldbus master. This will be used together with register 0x2004. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 185 Maximum half negativ number, GP_HALF_NEG Access Read Description Constant in order to control arithmetic. Register address 0x3000 to 0x5FFF (MODBUS Address 412289 to 424576) Value Retain range Access read/write Description These registers can be accessed as the flag/retain range. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 186: Ethernet/Ip (Ethernet/Industrial Protocol)
Data exchange takes place with the help of an object model. In this way, ControlNet, DeviceNet and EtherNet/IP have the same application protocol and can therefore jointly use device profiles and object libraries. These objects enable plug-and-play interoperability between complex devices of different manufacturers. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 187: Characteristics Of The Ethernet/Ip Protocol Software
• 128 Encapsulation Protocol sessions • 128 Class 3 or Class 1 Connections combined Class 3 connection – explicit messages (connection oriented, client and server) Class 1 connection – I/O messages (connection oriented, client and server) WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 188: Object Model
For each class, there exists a fixed set of services. • Behaviour: The behaviour defines how a device reacts as a result of external events such as changed process data or internal events such as lapsing timers. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 189: Classes
Name Identity Message Router Assembly Connection Connection Manager TCP/IP Interface Object Ethernet Link Object 4.3.3.2.2 WAGO specific Classes Class Name Controller configuration Object Discrete Input Point Discrete Output Point Analog Input Point Analog Output Point Discrete Input Point Extended 1...
Page 190: Explanations Of The Object Description
Note: If this column is missing, all attributes have the type V Name: Designation of the attribute Designation of the CIP data type of the attribute Data type: Short description for the Attribute Description: Default value: Factory settings WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 191: Identity
I/O connection, =0011: no I/O connection established) Bit 8-11: not used Bit 12-15=0 (reserved) Serial Number UDINT Serial number The last 4 digits of MAC ID Product Name SHORT_STRING Product name e.g. “WAGO Ethernet (10/100 Mbps)-FBC WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 192: Message Router (02 Hex )
00 80 00 81 00 A0 NumberAvailabl UINT Varable 0x80 Common Services Service available Service code Service Name Description Class Instance 01 hex Get_Attribute_All Supplies contents of all attributes 0E hex Get_Attribute_Single Supplies contents of the appropriate attribute WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 193: Assembly (04 Hex )
Reference of the process image: Data analog and digital input data + Status Instance 105 (69 Attribute Access Name Data type Description Default value ARRAY of BYTE Reference of the process image: Data only digital input data + Status WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 194 ARRAY of BYTE Reference of the process image: Data only PFC output variables Instance 111 (6F Attribute Access Name Data type Description Default value ARRAY of BYTE Reference of the process image: Data only PFC input variables WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 195 This instance can only be used in the "consumed path" (from the point of view of the slave device). Common Services Service available Service code Service Name Description Class Instance 0E hex Get_Attribute_Single Supplies contents of the appropriate attribute 10 hex Set_Attribute_Single Modifies an attribute value WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 196: Port Class (F4 Hex )
Node Padded Port segment (IP address) Address EPATH Common Services Service available Service code Service Name Description Class Instance 01 hex Get_Attribute_All Supplies contents of all attributes 0E hex Get_Attribute_Sing Supplies contents of the appropriate attribute WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 197: Tcp/Ip Interface (F5 Hex )
Name Common Services Service available Service code Service Name Description Class Instance 01 hex Get_Attribute_All Supplies contents of all attributes 0E hex Get_Attribute_Sing Supplies contents of the appropriate attribute 10 hex Set_Attribute_Singl Modifies an attribute value WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 198: Ethernet Link
Name Data type Description Default value State of controller Error mask Bit 0 Internal bus error 5 (0x05) ProcessState USINT Bit 3 Module diagnostics (0x08) Bit 7 Fieldbus error (0x80) 6 (0x06) UINT Module diagnostics DNS_i_Trm WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 199 PFC output fieldbus 104 (0x68) lcOnly_Var_ UINT variables, which are received via Assembly instance 110. Determines starting from which Bk_FbOut_S position the PFC output fieldbus 105 (0x69) tartPlc_Var_ UINT variables for the assembly instance 110 to be received. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 200: Discrete Input Point (65 Hex )
Name Data type Description Default value Digital input (only Bit 0 is DipObj_Value BYTE valid) Common Services Service available Service Service code Description Name Class Instance 0E hex Get_Attribute_ Supplies contents of the appropriate attribute Single WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 201: Discrete Output Point (66 Hex )
Array of Byte Analog input AipObj_Value_Lengt Length of the input data USINT AipObj_Value (in byte) Common Services Service available Service Service code Description Name Class Instance 0E hex Get_Attribute_ Supplies contents of the appropriate attribute Single WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 202: Analog Output Point (68 Hex )
Analog Input Point Extended 1..3 (6B hex, hex, Same as the Analog Input Point Class (67 ), however it contains the extended analog inputs: Analog Inputs 256 ..510 Analog Inputs 511 ..765 Analog Inputs 766 ..1020 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 203: Analog Output Point Extended 1
255. 4.3.3.2.21 Input fieldbus variable USINT (A0 Class Attribute ID Access Name Data type Description Default value Revision UINT Revision of this object 1 (0x0001) UINT Max. number of instances 255 (0x0FF) Instance WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 204: Input Fieldbus Variable Usint Extended 1 (A1 Hex )
Name Data type Description Default value Fieldbus Input variable of the Fb_In_Var USINT This instance corresponds to the PFC’s input variables located at address %IB2552-%IB2807 in a WAGO-I/O-PRO application. Common Services Service available Service code Service Name Description Class Instance...
Page 205: Output Fieldbus Variable Usint Extended
), however this contains the PLC output variables 256..510. This instance corresponds to the PFC’s output variables located at address %QB2808-%QB3062 in a WAGO-I/O-PRO application. 4.3.3.2.26 Output fieldbus variable USINT Extended 2 (A5 Same as the Output Fieldbus Variable USINT Class (A3 ), however this contains the PLC output variables 511..512.
Page 206: Input Fieldbus Variable Uint
Data type Description Default value Fieldbus Input variable of Fb_In_Var UINT the PLC This instance corresponds to the PFC’s input variables located at address %IW1276- %IW1530 in a WAGO-I/O-PRO application. Common Services Service available Service code Service Name Description Class Instance...
Page 207: Output Fieldbus Variable Uint Extended
Data type Description Default value Fieldbus Output variable of Fb_Out_Var UINT the PLC This instance corresponds to the PFC’s output variables located at address %QW1276-%QW1530 in a WAGO-I/O-PRO application. Common Services Service available Service Name Description Service code Class Instance...
Page 208: Output Fieldbus Variable Udint (Ac )
Service Name Description Class Instance 0E hex Get_Attribute_Single Supplies contents of the appropriate attribute 4.3.3.2.34 Output fieldbus variable UDINT Offset (AD Same as the Output fieldbus Variable UDINT (AC ), however with an offset of 2 bytes. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 209: O Modules
You will find these manuals on CD ROM „ELECTRONICC Tools and Docs“ (Item No.: 0888-0412) or at http://www.wago.com under Documentation. More Information Current information on the modular WAGO-I/O-SYSTEM is available at http://www.wago.com. 5.1.1 Digital Input Modules Tab. 5-1: Digital input modules DI DC 5 V 750-414 4 Channel, DC 5 V, 0.2 ms, 2- to 3-conductor connection,...
Page 210: Wago-I/O-System
2 Channel, AC 120 V, 2- to 4-conductor connection; high-side switching DI AC 120(230) V 753-440 4 Channel, AC 120(230) V, 2-conductor connection; high-side switching DI AC 230 V 750-405, 753-405 2 Channel, AC 230 V, 2- to 4-conductor connection; high-side switching WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 211: Digital Output Modules
8 Channel, DC 24 V, 0.5 A, short-circuit-protected; high-side switching; diagnostics 750-536 8 Channel, DC 24 V, 0.5 A, short-circuit-protected; low-side switching DO AC 120(230) V 753-540 4 Channel, AC 120(230) V, 0.25 A, short-circuit-protected; high-side switching WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 212: Analog Input Modules
4 Channel, 4 - 20 mA, single-ended AI 0 - 1 A 750-475, 753-475 2-Channel, 0 - 1 A AC/DC, differential input AI 0 - 5 A 750-475/020-000, 2-Channel, 0 - 5 A AC/DC, differential input 753-475/020-000 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 213 J, K, B, E, N, R, S, T, U 750-469, 753-469 2 Channel, thermocouples, line break detection, sensor types: J, K, B, E, N, R, S, T, U, L AI Others 750-491 1 Channel for resistor bridges (strain gauge) WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 214: Analog Output Modules
2 Channel, DC 0 - 10 V, 10 bit, 100 mW, 24 V 750-559, 753-559 4 Channel, DC 0 - 10 V AO DC ± 10 V 750-556, 753-556 2 Channel, DC ± 10 V 750-557, 753-557 4 Channel, DC ± 10 V WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 215: Special Modules
AS interface master module Radio Receiver Module 750-642 Radio receiver EnOcean MP Bus Master Module 750-643 MP bus (multi point bus) master module Vibration Monitoring 750-645 2 Channel vibration velocity / bearing condition monitoring VIB I/O WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 216 750-666/000-001 1FDO 10A / 2FDO 0.5A / 2FDI 24V PROFIsafe; PROFIsafe power switch module RTC Module 750-640 RTC module KNX / EIB TP1 Module 750-646 KNX / EIB /TP1 module – device mode / router mode WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 217: System Modules
Field side connection module, AC/DC 0 ... 230 V Separation Modules 750-616 Separation module 750-621 Separation module with power contacts Binary Spacer Module 750-622 Binary spacer module End Module 750-600 End module, to loop the internal bus WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 218: Process Data Architecture For Modbus/Tcp
(with word alignment). The internal mapping method for data greater than one byte conforms to the Intel format. The following section describes the process image for various WAGO-I/O-SYSTEM 750 and 753 I/O modules when using a coupler/controller with MODBUS/TCP. Note...
Page 219 Channel Channel Output Process Image Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Acknowledge Acknowledg ment bit ement bit Channel 2 Channel 1 4 Channel Digital Input Modules WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 220: Digital Output Modules
Bit 0 Status bit „Manual used Operation“ Output Process Image Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 controls DO 1 used Channel 1 2 Channel Digital Output Modules WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 221 (i.e., overload, a short circuit, or a broken wire). The 4-bits of diagnostic data are mapped into the Input Process Image, while the output control bits are in the Output Process Image. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 222 S 3 ic bit S 2 ic bit S 1 c bit S 0 Channel Channel Channel Channel Diagnostic bit S = '0' no Error Diagnostic bit S = '1' overload, short circuit, or broken wire WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 223 Bit 1 Bit 0 controls controls controls controls controls controls controls controls DO 8 DO 7 DO 6 DO 5 DO 4 DO 3 DO 2 DO 1 Channel Channel Channel Channel Channel Channel Channel Channel WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 224: Analog Input Modules
753-452, -454, -456, -461, -465, -466, -467, -469, -472, -474, -475, -476, -477, -478, -479, -483, -492, (and all variations) Input Process Image Byte Destination Offset Remark High Byte Low Byte Measured Value Channel 1 Measured Value Channel 2 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 225: Analog Output Modules
2 Channel Analog Output Modules 750-550, -552, -554, -556, -560, -585, (and all variations), 753-550, -552, -554, -556 Output Process Image Byte Destination Offset Remark High Byte Low Byte Output Value Channel 1 Output Value Channel 2 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 226: Specialty Modules
Output Value Channel 4 5.2.5 Specialty Modules WAGO has a host of Specialty I/O modules that perform various functions. With individual modules beside the data bytes also the control/status byte is mapped in the process image. The control/status byte is required for the bi- directional data exchange of the module with the higher-ranking control system.
Page 227 Status byte Counter Value of Counter 1 Counter Value of Counter 2 Output Process Image Byte Destination Offset Remark High Byte Low Byte Control byte Counter Setting Value of Counter 1 Counter Setting Value of Counter 2 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 228 The two channel values are supplied as 16 bits. Each channel has its own control/status byte. The following table illustrates the Input and Output Process Image, which has a total of 4 words mapped into each image. Word alignment is applied. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 229 Input and Output Process Image, which have a total of 2 words mapped into each image. Word alignment is applied. Input and Output Process Image Byte Destination Offset Remark High Byte Low Byte Data byte Control/Status byte Data bytes WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 230 Input and Output Process Image. The following tables illustrate the Input and Output Process Image, which has a total of 2 words mapped into each image. Word alignment is applied. Input and Output Process Image Byte Destination Offset Remark High Byte Low Byte Data bytes WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 231 High Byte Low Byte not used Status byte Counter word not used Latch word Output Process Image Byte Destination Offset Remark High Byte Low Byte not used Control byte Counter Setting word not used not used WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 232 Input and Output Process Image Byte Destination Offset Remark High Byte Low Byte C0/S0 Control/Status byte of Channel 1 Data Value of Channel 1 C1/S1 Control/Status byte of Channel 2 Data Value of Channel 2 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 233 Input and Output Process Image (5 bytes of module data and 1 byte of control/status). The following tables illustrate the Input and Output Process Image, which have 3 words mapped into each image. Word alignment is applied. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 234 Image, which have 2 words mapped into each image. Word alignment is applied. Input Process Image Byte Destination Offset Remark High Byte Low Byte Data byte Status byte Data bytes Output Process Image Byte Destination Offset Remark High Byte Low Byte not used Control byte not used WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 235 The following table illustrates the Input and Output Process Image, which have 4 words mapped into each image. Word alignment is applied. Input and Output Process Image Byte Destination Offset Remark High Byte Low Byte extended Control/Status C1/S1 C0/S0 Control/Status byte byte Data bytes WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 236 C2/S2 Not used (log. Channel 3 Sensor input 1) Data bytes (log. Channel 3 Sensor input 1) Control/Status byte C3/S3 Not used (log. Channel 4 Sensor input 2) Data bytes (log. Channel 4 Sensor input 2) WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 237 The following words contain the remaining process data. Input and Output Process Image Byte Destination Offset Remark High Byte Low Byte C0/S0 not used Control/Status byte Mailbox (0, 3, 5, 6 or 9 words) / Process data (0-16 words) max. 23 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 238: System Modules
Bit 1 Bit 0 (Data bit (Data bit (Data bit (Data bit (Data bit (Data bit Data bit Data bit DI 8) DI 7) DI 6) DI 5) DI 4) DI 3) DI 2 DI 1 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 239: Process Data Architecture For Ethernet/Ip
(with word alignment). The internal mapping method for data greater than one byte conforms to the Intel format. The following section describes the process image for various WAGO-I/O-SYSTEM 750 and 753 I/O modules when using a coupler/controller with EtherNet/IP. Note...
Page 240 Bit 2 Bit 1 Bit 0 Diagnostic Diagnostic Data bit Data bit bit S 2 bit S 1 DI 2 DI 1 Channel 2 Channel 1 Channel Channel The input modules seize 4 Instances in Class (0x65). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 241: Digital Output Modules
When analog output modules are also present in the node, the digital image data is always appended after the analog data in the Output Process Image, grouped into bytes. Each output channel seizes one Instance in the Discrete Output Point Object (Class 0x66). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 242 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Diagnostic Diagnostic bit S 2 bit S 1 Channel 2 Channel 1 The output modules seize 2 Instances in Class (0x65). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 243 Bit 3 Bit 2 Bit 1 Bit 0 controls controls controls controls DO 4 DO 3 DO 2 DO 1 Channel 4 Channel 3 Channel 2 Channel 1 The output modules seize 4 Instances in Class (0x66). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 244 When an output fault condition occurs (i.e., overload, short circuit, or broken wire), a diagnostic bit is set. The diagnostic data is mapped into the Input Process Image, while the output control bits are in the Output Process Image. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 245: Analog Input Modules
1 Channel Analog Input Module 750-491, (and all variations) Input Process Image Byte Destination Offset Remark High Byte Low Byte Measured Value U Measured Value U The input modules represent 2x2 bytes and seize 2 Instances in Class (0x67). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 246 Byte Destination Offset Remark High Byte Low Byte Measured Value Channel 1 Measured Value Channel 2 Measured Value Channel 3 Measured Value Channel 4 The input modules represent 4x2 bytes and seize 4 Instances in Class (0x67). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 247: Analog Output Modules
Byte Destination Offset Remark High Byte Low Byte Output Value Channel 1 Output Value Channel 2 Output Value Channel 3 Output Value Channel 4 The output modules represent 4x2 bytes and seize 4 Instances in Class (0x68). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 248: Specialty Modules
Process Data Architecture for EtherNet/IP 5.3.5 Specialty Modules WAGO has a host of Specialty I/O modules that perform various functions. With individual modules beside the data bytes also the control/status byte is mapped in the process image. The control/status byte is required for the bi- directional data exchange of the module with the higher-ranking control system.
Page 249 Input and Output Process Image (4 bytes of counter data and 2 bytes of control/status). The two counter values are supplied as 16 bits. The following tables illustrate the Input and Output Process Image, which has a total of 4 words mapped into each image. Word alignment is applied. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 250 Data Value of Channel 1 C1/S1 Control/Status byte of Channel 2 Data Value of Channel 2 The specialty modules represent 2x3 bytes input and output data and seize 2 Instances in Class (0x67) and 2 Instances in Class (0x68). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 251 6 bytes of user data in both the Input and Output Process Image (5 bytes of serial data and 1 byte of control/status). The following table illustrates the Input and Output Process Image, which have a total of 3 words mapped into each image. Word alignment is applied. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 252 Input Process Image, which has 2 words mapped into the image. Word alignment is applied. Input Process Image Byte Destination Offset Remark High Byte Low Byte Data bytes The specialty modules represent 2x2 bytes input data and seize 2 Instances in Class (0x67). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 253 If cycle duration measurement mode is enabled in the control byte, the cycle duration is given as a 24-bit value that is stored in D2 together with D3/D4. The specialty modules represent 1x6 bytes input data and seize 1 Instance in Class (0x67). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 254 Offset Remark High Byte Low Byte C0/S0 Data byte Control/Status byte Data bytes The specialty modules represent 1x4 bytes input and output data and seize 1 Instance in Class (0x67) and 1 Instance in Class (0x68). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 255 Input Process Image Byte Destination Offset Remark High Byte Low Byte DALI Response Status byte Message 3 DALI Address Message 1 Message 2 The specialty modules represent 1x6 bytes input data and seize 1 Instance in Class (0x67). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 256 Input and Output Process Image (6 bytes of module data and 2 bytes of control/status). The following table illustrates the Input and Output Process Image, which have 4 words mapped into each image. Word alignment is applied. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 257 (log. channel 4, Sensor input 2) Data bytes (log. channel 4, Sensor input 2) The specialty modules represent 4x3 bytes input and output data and seize 4 Instances in Class (0x67) and 4 Instances in Class (0x68). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 258: System Modules
Input Process Image Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Diagnostic bit S 2 Diagnostic bit S 1 Fuse Voltage The system modules seize 2 Instances in Class (0x65). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 259 Data bit DI 8) DI 7) DI 6) DI 5) DI 4) DI 3) DI 2 DI 1 The Binary Space Modules seize 2, 4, 6 or 8 Instances in class (0x65) or in class (0x66).. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 260: Application Examples
For a description example relating to the software operation, please refer to: http://www.win-tech.com/html/modscan32.htm 6.2 Visualization and control using SCADA software This chapter is intended to give insight into how the WAGO ETHERNET fieldbus coupler/controller can be used for process visualization and control using standard user software.
Page 261 Internet as demo versions. The operation of these programs is very specific. However, a few essential steps are described to illustrate the way an application can be developed using a WAGO ETHERNET fieldbus node and SCADA software in principle. •...
Page 262 "Measuring data. 0 0000 2". Fig. 6-1: Example of user software G012913e More information Please refer to the respective SCADA product manual for a detailed description of the particular software operation. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 263: Use In Hazardous Environments
This is backed by law, directives or regulations on a national and international scale. WAGO-I/O-SYSTEM 750 (electrical components) is designed for use in zone 2 explosive environments. The following basic explosion protection related terms have been defined.
Page 264 Zone 21 areas can expect the occasional occurrence of an explosive atmosphere (> 10 h ≤ 1000 h /year). Zone 22 areas can expect the rare or short-term occurrence of an explosive atmosphere (> 0 h ≤ 10 h /year). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 265: Explosion Protection Group
Tab. 7-1: Minimal ignition energy of representative types of gases Minimal Ignition Energy of Representative Types of Gases Explosion group Gases Methane Propane Ethylene Hydrogen Ignition energy (µJ) Hydrogen being commonly encountered in chemical plants, frequently the explosion group IIC is requested for maximum safety. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 266: Unit Categories
Zone 1 Explosive environment by gas, fumes or mist Zone 2 Explosive environment by gas, fumes or mist Zone 20 Explosive environment by dust Zone 21 Explosive environment by dust Zone 22 Explosive environment by dust WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 267: Temperature Classes
Tab. 7-4: Material groups in percent Temperature classes Total 26.6 % 42.8 % 25.5 % 94.9 % 4.9 % 0.2 % Explosion group Total 85.2 % 13.8 % 1.0 % Number of classified materials WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 268: Types Of Ignition Protection
A – non spark generating (function modules without relay /without switches) • AC – spark generating, contacts protected by seals (function modules with relays / without switches) • L – limited energy (function modules with switch) WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 269: Classifications Meeting The Nec 500
Class I (gases and fumes): Group A (Acetylene) Group B (Hydrogen) Group C (Ethylene) Group D (Methane) Class II (dust): Group E (Metal dust) Group F (Coal dust) Group G (Flour, starch and cereal dust) Class III (fibers): No sub-groups WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 270: Temperature Classes
160 °C >160 °C to 165 °C 135 °C >135 °C to 160 °C 120 °C >120 °C to 135 °C 100 °C >100 °C to 120 °C 85 °C > 85 °C to 100 °C WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 271: Identification
Hansastr. 27 D-32423 Minden 0.08-2.5mm PATENTS PENDING II 3 G KEMA 01ATEX1024 X EEx nA II T4 Fig. 7-1: Example for lateral labeling of bus modules (750-400, 2 channel digital input module 24 V DC) g01xx03e WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 272: For America
Hansastr. 27 D-32423 Minden 0.08-2.5mm PATENTS PENDING II 3 G KEMA 01ATEX1024 X EEx nA II T4 Fig. 7.5.2-1: Example for lateral labeling of bus modules (750-400, 2 channel digital input module 24 V DC) g01xx04e WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 273: Installation Regulations
DIN VDE 0185 lightning protection systems The USA and Canada have their own regulations. The following are excerpts from these regulations: NFPA 70 National Electrical Code Art. 500 Hazardous Locations ANSI/ISA-RP Recommended Practice 12.6-1987 C22.1 Canadian Electrical Code WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 274 Use in Hazardous Environments Installation Regulations Danger When using the WAGO-I/O SYSTEM 750 (electrical operation) with Ex approval, the following points are mandatory: The field bus independent I/O System Modules Type 750-xxx are to be installed in enclosures that provide for the degree of ingress protection of at least IP54.
Page 275: Glossary
A structure used to transmit data. There are two types, serial and parallel. A serial bus transmits data bit by bit, whereas a parallel bus transmits many bits at one time. Byte Binary Yoked Transfer Element. A byte generally contains 8 bits. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 276 ETHERNET Specifies a Local Area Network (LAN), which was developed by Xerox, Intel and DEC in the 70’s. The bus access process takes place according to the CSMA/CD method. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 277 Module that always returns the same result (as a function value), prerequisite being identical input values; it has no local variables that store values beyond an invoke. Function block Module that delivers one or more values when being executed. They can be stored as local variables („Memory“). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 278 Internet or Intranets for exchanging HTML documents. It normally uses port 80. A device which allows communication between several network users via twisted pair cable. Similar to a repeater, but with many outputs, a hub is used to form a star topology. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 279 In the coupler/controller memory, the module data is aligned in different ways, depending on the set configuration (Intel/Motorola-Format, word-alignment,...). The format determines whether or not high and low bytes are changed over. They are not changed over with the Intel format. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 280 Local Area Network Library Compilation of modules available to the programmer in the programming tool WAGO-I/O-PRO 32 for the creation of a control program according to IEC 61131-3. Mail Server Internet E-mails are transported and stored temporarily by so-called Mail servers.
Page 281 (applications). Predictable ETHERNET The delay time of a message on an ETHERNET network can be predicted. The measures which have been taken in predictable ETHERNET make it virtually possible to realize realtime requirements. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 282 Specifications, suggestions, ideas and guidelines regarding the Internet are published in the form of RFCs (Request For Comments). RJ45 connector Also referred to as a Western connector. This connector allows the connection of two network controllers via twisted pair cables. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 283 Short form for “Simple Object Access Protocol“. XML is a standard for Meta data, the access on the XML objects takes place via SOAP.The standard defines, how transactions via internet and XML can be done and how dynamic Web services over distributed networks can be used. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 284 A standard subnet mask is, for example, 255.255.255.0. S-UTP Screened unshielded twisted pair cable which only has one external shield. However, the twisted pair cables are not shielded from each other. WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 285 Telnet The Telnet protocol fulfils the function of a virtual terminal. It allows remote access from the user’s computer to other computer systems on the network. Twisted Pair Twisted pair cables (abbreviated to TP). WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 286 WAGO-I/O-PRO CAA Uniform programming environment, programming tool from WAGO Kontakttechnik GmbH for the creation of a control program according to IEC 61131-3 for all programmable fieldbus controllers. Allows testing, debugging and the start-up of a program.
Page 287: Literature List
Local Area Networks - An introduction to the technology John E. McNamara, Digital Press, 1985 ISBN 0-932376-79-7 Digital Press Teil Nummer EY-00051-DP Network Troubleshooting Guide von Digital Equipment Corporation, August 1990, Digital Press Teil Nummer EK-339AB-GD-002 Zu RFC: Request for Comments http://members.xoom.com/spielchen2k/archiv/public/exploits/rfcs/rfcs/ WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 288: Index
Locking Disc · 19 Buscoupler · 255 Loop · 48 Industry · 132 Network · 70, 130 Network architecture · 123 Predictable · 133 MAC-ID · 47, 137 Shared · 132 Manufacturing Number · 14 Standard · 124, 137 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 289: Wago-I/O-System
Repeater · 123, 130, 131, 277 Request · 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 277 Watchdog Request error · 153 Register · 169 Reset word-alignment · 213, 234 Hardware · 73 WWW · 145 WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP...
Page 290 WAGO Kontakttechnik GmbH & Co. KG Postfach 2880 • D-32385 Minden Hansastraße 27 • D-32423 Minden Phone: 05 71/8 87 – 0 Fax: 05 71/8 87 – 1 69 E-Mail: info@wago.com Web: http://www.wago.com...

This manual is also suitable for:

I/o system 750

WAGO 750-872/020-000 Manual

1 Important Notes

2 The WAGO-I/O-SYSTEM 750

3 Fieldbus Controller

4 Fieldbus Communication

5 O Modules

6 Application Examples

7 Use in Hazardous Environments

8 Glossary

9 Literature List

10 Index

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Summary of Contents for WAGO 750-872/020-000