WAGO 750-881

WAGO 750-881 – Ethernet Controller (3rd Generation)

Overview

The WAGO 750-881 is a programmable Ethernet controller that connects standard Ethernet networks to the WAGO I/O System. It supports EtherNet/IP and Modbus TCP/UDP, includes an integrated switch with two RJ-45 interfaces, and automatically builds a process image of all attached I/O modules. Programming is IEC-61131-3-compliant. The device includes diagnostic LEDs and supports both system-side and field-side power via jumper contacts.

Key Features

• Supports EtherNet/IP, Modbus TCP/UDP, and standard Ethernet protocols (HTTP, DHCP, DNS, SNTP, SNMP, FTP)

• Dual RJ-45 Ethernet ports with integrated switch (Auto-Negotiation, Auto-MDI(X))

• IEC-61131-3 programming languages (IL, LD, FBD, ST, SFC, CFC)

• Integrated Web server for configuration and status monitoring

• Capacity for up to 64 I/O modules (up to 250 with bus extension)

• Large process images: 1020 words input / 1020 words output

• 32-bit CPU, multitasking, with battery-backed real time clock

Technical Specifications

• Part Number: 750-881

• Communication Protocols: EtherNet/IP, Modbus TCP & UDP

• Ethernet Speed: 10/100 Mbit/s

• Transmission Medium: Twisted pair, Cat 5 or better, 100 Ω

• Max I/O Modules (without extension): 64

• Max I/O Modules (with bus extension): 250

• Max Process Image: 1020 words in / 1020 words out

• Program Memory: 1,024 KB

• Data Memory (RAM): 512 KB

• Retain Memory (non-volatile): 32 KB

• System Power Supply: 24 VDC (-25% … +30%)

• Nominal Input Current at 24 V: ~500 mA

• Efficiency (at nominal load): ~90%

• System Supply (5 V side) Current: ~450 mA

• Total Current for System Supply (for I/O modules): 1,700 mA

• Field Supply Voltage: 24 VDC via power jumper contacts

• Power Jumper Contacts Capacity: 10 A

• Number of Outgoing Power Jumper Contacts: 3

• Isolation Voltage (System vs Field): 500 V

• Connection Type:
   - Communication: 2 × RJ-45
   - System Supply: 2 × CAGE-CLAMP®
   - Field Supply: 6 × CAGE-CLAMP®

• Conductor Size (solid/stranded): 0.08 … 2.5 mm² (AWG 28 … 14)

• Wire Strip Length: 8 … 9 mm

• Dimensions (W × H × D): ~61.5 × 65 × 100 mm

• Height from top edge of DIN-rail: ~64.7 mm

• Weight: ~159 g

• Operating Temperature: 0 … +55 °C

• Storage Temperature: -25 … +85 °C

• Protection Rating: IP20

• Pollution Degree: 2

Applications

• Programmable fieldbus controller in industrial Ethernet setups

• Integration of mixed I/O (digital, analog) modules in automation systems

• Where protocol support for EtherNet/IP and Modbus is required

• Systems needing large I/O images and high module counts

Why Choose the WAGO 750-881

• Dual Ethernet ports with built-in switching reduce external hardware

• Strong protocol flexibility (EtherNet/IP, Modbus, etc.) for various automation networks

• Robust performance with large memory and support for many modules

• Reliable isolation, good efficiency, and compact footprint

Order Now

The WAGO 750-881 is part of the WAGO I/O System 750 controller family. Available for purchase. Ships worldwide.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply