BECKHOFF IP2331-B518 Fieldbus Box

Description

The BECKHOFF IP2331-B518 is a high-performance CANopen Fieldbus Box designed to act as a direct communication interface between CANopen networks and decentralized IP-Link extension modules. This module allows for direct field assembly without the need for a protective control cabinet, simplifying decentralized machine control architectures.

The device manages network communication efficiently, supporting up to 16 send and 16 receive Process Data Objects (PDOs) alongside standard network features like life guarding, node guarding, emergency objects, and variable mapping. Communication occurs over a robust physical layer, leveraging integrated M12 connections that allow for straightforward network expansion and integration.

Engineered for harsh environments, the BECKHOFF IP2331-B518 features IP65/66/67 protection and electrical isolation up to 500 V between the control voltage and the fieldbus network. Its rugged design ensures dependable operation directly on machines, minimizing cabling overhead and commissioning times.

Features

• Direct integration with CANopen networks with automatic baud rate detection from 10 kbaud up to 1 Mbaud.
• Supports up to 16 send and 16 receive Process Data Objects (PDOs) for comprehensive system feedback.
• Integrated IP-Link interface for coupling with various extension I/O modules.
• Standard M12 connection system with an integrated tee-connector to simplify network daisy-chaining.
• Diagnostic functions including life guarding, node guarding, and emergency object handling.
• Rugged IP65/66/67-rated enclosure for protection against moisture, dust, and mechanical stress.

Applications

• Cabinet-free decentralized installation on machinery and manufacturing lines.
• Distributed CANopen automation topologies requiring localized signal acquisition.
• Harsh environmental applications subject to moisture, washdowns, or high dust levels.
• Modular machine layouts utilizing IP-Link expansion configurations.

Technical Specifications

General

Fieldbus and Communication

Electrical

Mechanical and Environmental

Connections / Interfaces

Installation Guidelines

1. Verify that the BECKHOFF IP2331-B518 hardware configuration matches the design specifications of your CANopen network.
2. Ensure that all primary power supplies are disconnected and locked out before initiating mounting or wiring.
3. Mount the module securely to a rigid machine surface using the integrated mounting holes. Ensure the mounting position supports easy routing and minimal strain on cables.
4. Connect the CANopen network lines using industrial-grade, shielded M12 cables.
5. Connect the 24 V DC control voltage to the 4-pin M8 feed connection, observing proper polarity and grounding procedures.
6. Attach required IP-Link expansion modules to the designated ports, securing the optical connectors properly.
7. Apply power and inspect diagnostic LED indicators to verify active communication and power integrity.

Configuration and Replacement Recommendations

• Network parameters and SDO mapping can be configured using the BECKHOFF KS2000 software suite or through the primary system PLC.
• When replacing an existing module, record the physical node address configurations and ensure that identical PDO allocation parameters are downloaded to the new unit to prevent functional mismatches.