- •Important Comments
- •Legal Principles
- •Copyright
- •Personnel Qualification
- •Intended Use
- •Symbols
- •Font Conventions
- •Number Notation
- •Scope
- •Important Comments for Starting up
- •Abbreviation
- •The WAGO-I/O-SYSTEM 750
- •Technical Data
- •Manufacturing Number
- •Storage, Assembly and Transport
- •Mechanical Setup
- •Installation Position
- •Total Expansion
- •Assembly onto Carrier Rail
- •Carrier rail properties
- •WAGO DIN Rail
- •Spacing
- •Plugging and Removal of the Components
- •Assembly Sequence
- •Internal Bus / Data Contacts
- •Power Contacts
- •Wire connection
- •Power Supply
- •Isolation
- •System Supply
- •Connection
- •Alignment
- •Field Supply
- •Connection
- •Fusing
- •Supplementary power supply regulations
- •Supply example
- •Power Supply Unit
- •Grounding
- •Grounding the DIN Rail
- •Framework Assembly
- •Insulated Assembly
- •Grounding Function
- •Grounding Protection
- •Shielding (Screening)
- •General
- •Bus Conductors
- •Signal Conductors
- •WAGO Shield (Screen) Connecting System
- •Assembly Guidelines / Standards
- •Fieldbus Controller
- •Fieldbus Controller 750-841
- •Description
- •Hardware
- •View
- •Device Supply
- •Fieldbus Connection
- •Display Elements
- •Configuration and Programming Interface
- •Operating Mode Switch
- •Hardware Address (MAC-ID)
- •Operating System
- •Start-up
- •PLC Cycle
- •Process Image
- •Example of a Process Input Image
- •Example of a Process Output Image
- •Fieldbus specific Process Data Architecture for MODBUS/TCP
- •Digital Input Modules
- •Digital Output Modules
- •Analog Input Modules
- •Analog Output Modules
- •Specialty Modules
- •Data Exchange
- •Memory Areas
- •Addressing
- •Addressing the I/O Modules
- •Address Range
- •Absolute Addresses
- •Data Exchange between MODBUS TCP Master and I/O Modules
- •Data Exchange between Ethernet IP Master and I/O Modules
- •Data Exchange between PLC Functionality (CPU) and I/O Modules
- •Data Exchange between Master and PLC Functionality (CPU)
- •Example MODBUS TCP Master and PLC functionality (CPU)
- •Comparison of MODBUS TCP Addresses and IEC 61131-3 Addresses
- •Starting up an ETHERNET TCP/IP fieldbus node
- •Connecting PC and Fieldbus Node
- •Determining IP Addresses
- •Allocating the IP Address to the Fieldbus Node
- •Testing the Function of the Fieldbus Node
- •Deactivating the BootP Protocol
- •Programming the PFC with WAGO-I/O-PRO CAA
- •WAGO-I/O-PRO CAA library elements for ETHERNET
- •IEC 61131-3-Program transfer
- •Transmission via the Serial Interface
- •Transmission by the Fieldbus
- •Information on the web-based management system
- •LED Display
- •Blink code
- •Fieldbus status
- •Node status
- •Fault Message via Blink Code from the I/O-LED
- •Supply voltage status
- •Fault behavior
- •Fieldbus failure
- •Internal bus fault
- •Technical Data
- •I/O Modules
- •General
- •Digital Input Modules
- •Digital Output Modules
- •Analog Intput Modules
- •Analog Output Modules
- •Counter Modules
- •ETHERNET
- •General
- •Network Architecture – Principles and Regulations
- •Transmission Media
- •Network Topologies
- •Coupler Modules
- •Important Terms
- •Network Communication
- •Protocol layer model
- •Communication Protocols
- •ETHERNET
- •Channel access method
- •IP-Protocol
- •IP Multicast
- •TCP Protocol
- •Application Protocols
- •MODBUS
- •Ethernet/IP
- •BootP (Bootstrap Protocol)
- •HTTP (HyperText Transfer Protocol)
- •DHCP (Dynamic Host Configuration Protocol)
- •DNS (Domain Name Systems)
- •SNTP-Client (Simple Network Time Protocol)
- •FTP-Server (File Transfer Protocol)
- •SNMP V1 (Simple Network Management Protocol)
- •Configuration of SNMP
- •Description of MIB II
- •IpNetToMediaTable
- •Traps
- •SMTP (Simple Mail Transfer Protocol)
- •MODBUS Functions
- •General
- •Use of the MODBUS Functions
- •Description of the MODBUS Functions
- •Function Code FC1 (Read Coils)
- •Function Code FC2 (Read Input Discretes)
- •Function Code FC3 (Read multiple registers)
- •Function code FC4 (Read input registers)
- •Function Code FC5 (Write Coil)
- •Function Code FC6 (Write single register)
- •Function Code FC11 (Get comm event counter)
- •Function Code FC15 (Force Multiple Coils)
- •Function Code FC16 (Write multiple registers)
- •Function Code FC22 (Mask Write Register)
- •Function Code FC23 (Read/Write multiple registers)
- •MODBUS Register Mapping
- •Internal Variables
- •Description of the internal variables
- •Watchdog (Fieldbus failure)
- •Watchdog Register:
- •Diagnostic Functions
- •Configuration Functions
- •Firmware Information
- •Constant Registers
- •Ethernet/IP (Ethernet/Industrial Protocol)
- •General
- •Characteristics of the Ethernet/IP Protocol Software
- •Object model
- •General
- •Classes
- •CIP Common Classes
- •Static Assembly Instances
- •Application examples
- •Test of MODBUS protocol and fieldbus nodes
- •Visualization and control using SCADA software
- •Use in Hazardous Environments
- •Foreword
- •Protective measures
- •Classification meeting CENELEC and IEC
- •Divisions
- •Explosion protection group
- •Unit categories
- •Temperature classes
- •Types of ignition protection
- •Classifications meeting the NEC 500
- •Divisions
- •Explosion protection groups
- •Temperature classes
- •Identification
- •For Europe
- •For America
- •Installation regulations
102 • Fieldbus Controller 750-841
Technical Data
3.1.10 |
Technical Data |
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System data |
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No. of nodes |
limited by ETHERNET specification |
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Transmission medium |
Twisted Pair S-UTP 100 Ω cat. 5 |
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Buscoupler connection |
RJ45 |
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Max. length of fieldbus segment |
100 m between hub station and 750-841; max. length |
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of network limited by ETHERNET specification |
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Baud rate |
10/100 Mbit/s |
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Protocols |
MODBUS/TCP (UDP), ETHERNET/IP, HTTP, |
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BootP, DHCP, DNS, SNTP, FTP, SNMP, SMTP |
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Programming |
WAGO-I-PRO CAA |
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IEC 61131-3-3 |
IL, LD, FBD, ST, SFC |
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Approvals |
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UL |
E175199, UL508 |
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Conformity marking |
Œ |
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Technical Data |
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No. of I/O modules |
64 |
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with bus extension |
255 |
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digital signals |
max. 2040 (inputs and outputs) |
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analog signals |
max. 1020 (inputs and outputs) |
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Configuration possibility |
via PC |
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Program memory |
512 kByte |
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Data memory |
128 kByte |
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Non-valatile memory |
24 kByte (retain) |
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Max. no. of socket connections |
3 HTTP, 5 MODBUS/TCP, |
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2 for IEC 61131-3 programs, |
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2 for WAGO-I/O-PRO CAA, |
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128 for Ethernet/IP |
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Voltage supply |
DC 24 V (-15 % / + 20 %) |
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Input currentmax |
500 mA at 24 V |
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Efficiency of the power supply |
87 % |
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Internal current consumption |
300 mA at 5 V |
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Total current for I/O modules |
1700 mA at 5 V |
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Isolation |
500 V System/Versorgung |
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Voltage via power jumper contacts |
DC 24 V (-15 % / + 20 %) |
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Current via power jumper |
DC 10 A |
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contactsmax |
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Dimensions (mm) W x H x L |
51 x 65* x 100 (*from upper edge of DIN 35 rail) |
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Weight |
ca. 180 g |
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EMC Immunity to interference |
acc. to EN 50082-2 (95) |
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EMC Emission of interference |
acc. to EN 50081-1 (93) |
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WAGO-I/O-SYSTEM 750 ETHERNET TCP/IP
