BECKHOFF EPI4374-0002 IO-Link Box

Description

The BECKHOFF EPI4374-0002 is a decentralized, combined analog I/O module designed for integration with IO-Link master systems. It offers an efficient solution for collecting and outputting analog signals directly at the machine level, eliminating the need for extensive wiring and protective enclosures. Operating under the IO-Link Specification V1.1 (Class B), this module establishes point-to-point communication with an upstream master to process signals with high precision.

This IO-Link box is equipped with two analog inputs and two analog outputs, all of which are parameterizable per channel. Engineers can configure each connection individually to operate with standard voltage signals (-10 to +10 V or 0 to 10 V) or current signals (0 to 20 mA or 4 to 20 mA). This flexible architecture permits the direct connection of diverse industrial sensors and actuators within a single hardware footprint.

Constructed with a robust polyamide (PA6) housing, the BECKHOFF EPI4374-0002 features an IP65, IP66, and IP67 protection rating. This design allows for direct mounting on machine frames in harsh industrial environments, ensuring resistance against moisture, dust, and mechanical stress while optimizing field installation layouts.

Features

• Combination module with 2 analog inputs and 2 analog outputs in a single unit.
• Individually parameterizable channels for voltage (-10/0...+10 V) or current (0/4...20 mA) signals.
• 16-bit analog-to-digital and digital-to-analog resolution (including sign) for high measurement accuracy.
• High-speed IO-Link communication operating at 230.4 kbaud (COM3).
• Conforms to the IO-Link Specification V1.1, utilizing a Class B connection interface.
• Durable, direct-mount housing rated to IP65/66/67 standards.
• M12 connection technology for secure, screw-type field connections.

Applications

• Decentralized signal acquisition and control in machine tool construction.
• Direct field connection of analog pressure, temperature, and level sensors.
• Local actuator control, such as modulating valves and variable speed drives, without cabinet space.
• Testing and validation systems requiring modular, IP67-rated analog interface distribution.

Technical Specifications

Installation Guidelines

1. Verify Model Details: Confirm that the unit is a BECKHOFF EPI4374-0002 and matches the system network plan before beginning installation.
2. De-energize the System: Ensure all power supplies to the IO-Link master, actuator lines, and sensor devices are disconnected and locked out.
3. Mechanical Mounting: Secure the IO-Link box to a flat mounting surface or machine frame using two M3 screws through the 3.5 mm integrated mounting holes. Ensure the mounting position supports mechanical stability and access to cables.
4. Connect IO-Link Master: Attach the IO-Link Class B cable to the M12 interface plug. Verify that the cable is A-coded and correctly secured to maintain the IP protection rating.
5. Wire Field Inputs and Outputs: Thread the M12 sensor and actuator connections carefully into the corresponding I/O ports. Tighten the screw connections to ensure reliable electrical contact and seal integrity.
6. Configure Channel Parameters: Power on the system and use your TwinCAT or third-party engineering environment to configure the signal types (voltage or current) for each channel on the device.