750-338_wago_fieldbus_coupler

Product Overview

The WAGO 750-338 is a high-performance fieldbus coupler designed to seamlessly integrate the WAGO I/O System as a slave node into CANopen fieldbus networks. As a foundational component of the versatile WAGO 750 Series, this coupler serves as the intelligent bridge between a CANopen master controller and a distributed array of I/O modules, enabling efficient data exchange and centralized control -6-5. The WAGO 750-338 detects all connected I/O modules upon startup, automatically creating a local process image that organizes digital data bit-by-bit and analog data by word or byte, ensuring streamlined and error-free data mapping -6-5.

The WAGO 750-338 supports up to 64 I/O modules per node and accommodates a maximum of 110 fieldbus nodes on the master connection, making it ideal for both small-scale and extensive automation architectures -1-5. It features a robust 9-pin D-sub connector for fieldbus communication and utilizes WAGO’s reliable CAGE CLAMP® spring-pressure connection technology for power supply wiring -1-5. The module also offers the flexibility to serve as a platform for connecting a wide variety of 750 Series digital, analog, and specialty I/O modules, providing a tailored solution for diverse application requirements -5.

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Description

 

Technical Specifications

Parameter Name Parameter Value
Product Model 750-338
Manufacturer WAGO
Product Type CANopen Fieldbus Coupler
Series 750 Series (I/O System)
Fieldbus Protocol CANopen (DS-301 V4.1, DS-401 V2.0)
Max. Nodes per Master 110
Max. I/O Modules per Node 64
Baud Rate 10 kbit/s … 1 Mbit/s (automatic detection)
Bus Segment Length (max.) 1000 m
Transmission Medium Shielded Cu cable 3 x 0.25 mm²
Fieldbus Connection 1 x D-sub 9 plug (male)
System Supply Voltage 24 V DC (-25% / +30%) via CAGE CLAMP®
Field Supply Voltage 24 V DC via power jumper contacts
Max. Input Current (24V) 500 mA
Current Consumption (5V system) 350 mA
Total Current for I/O Modules (5V) 1650 mA
Max. Process Image (Input/Output) 512 bytes / 512 bytes
PDOs (Tx/Rx) 32 / 32
SDOs 2 server SDOs
Node ID Distribution DIP switch
Power Jumper Contacts Current 10 A
Isolation 500 V system/field
Dimensions (W x H x L) 50.5 mm x 100 mm x 71.1 mm
Weight approx. 177 g
Mounting DIN-35 rail
Protection Class IP20
Ambient Temperature (Operation) 0°C … +55°C (standard) / -40°C … +70°C (XTR variant)
Storage Temperature -40°C … +85°C
Relative Humidity 95% (without condensation)
Vibration Resistance 4g (IEC 60068-2-6)
Shock Resistance 15g (IEC 60068-2-27)
Housing Material Polycarbonate / Polyamide 6.6
Conductor Cross-section 0.25 mm² … 2.5 mm² / AWG 24 … 14
Strip Length 8 … 9 mm / 0.31 … 0.35 in.
Conformity Marking CE
Country of Origin Germany

 

Main Features and Advantages

The WAGO 750-338 delivers an ideal combination of flexibility, ease of use, and robust performance. Its “plug-and-produce” capability allows for the modular assembly of I/O configurations without complex hardware addressing, significantly reducing engineering time.

Unmatched modular flexibility:
The WAGO 750-338 is the cornerstone of a scalable I/O system. It allows users to assemble a custom I/O node by attaching any combination of up to 64 WAGO 750 Series modules. This modularity supports on-the-fly reconfiguration and system expansion, accommodating evolving application needs without replacing the core coupler -5.

Intelligent and simplified configuration:
Upon power-up, the WAGO 750-338 automatically identifies all connected I/O modules, their types, and their positions to build a local process image. This auto-configuration feature eliminates the need for manual address assignment, streamlining setup and minimizing errors. The node ID is easily set via DIP switches, further simplifying initial commissioning -5-7.

Superior CANopen communication:
With support for up to 32 Tx and 32 Rx PDOs and 2 server SDOs, the WAGO 750-338 provides high-performance data exchange and granular control over the communication process -5-7. It supports advanced CANopen features like variable PDO mapping, emergency messages, and life guarding, ensuring a reliable and robust network connection -5-8. The device adheres to the CANopen communication profile DS-301 V4.1 and device profile DS-401 V2.0, ensuring interoperability with a wide range of CANopen master devices -5-8.

Robust and industrial-grade design:
Built with a rugged polycarbonate and polyamide 6.6 housing, the WAGO 750-338 is designed for demanding industrial environments. It boasts high immunity to electromagnetic interference and a wide operating temperature range, with an extended-temperature version (750-338/040-000) capable of operating from -40°C to +70°C -5-8. Its CAGE CLAMP® spring-pressure connections are inherently vibration-proof and require no maintenance, ensuring long-term, reliable field wiring -5.

Contact Us WhatsApp / Wechat:+86 18150087953
Phone:+86 18150087953
Email:sales@cxplcmro.com