Beckhoff EP3204-0002 EtherCAT Box Analog Input Module for Distributed Automation

Product Overview

The Beckhoff EP3204-0002 is a rugged EtherCAT Box module designed for distributed analog input applications in harsh industrial environments. This module provides 4 analog input channels, each configurable for voltage (±10 V, 0-10 V) or current (0-20 mA, 4-20 mA) signals. The EP3204-0002 features an IP67 rated enclosure, making it suitable for direct mounting on machinery or in washdown areas without an additional control cabinet. It is part of the Beckhoff EtherCAT Box family, which provides robust, decentralized I/O for EtherCAT networks.

Key Features of EP3204-0002

The module has 4 differential analog input channels with 16-bit resolution, ensuring high measurement accuracy. Each channel is independently configurable via software for voltage or current ranges. The EP3204-0002 includes a 24-bit sigma-delta ADC with a conversion time of 1 ms per channel (configurable). It features electrical isolation between the channels and the EtherCAT bus. The module has M12 connectors for power, EtherCAT communication (input and output), and sensor connections, providing secure and waterproof connections. LED indicators show power, bus status, and channel activity.

The EP3204-0002 operates from 24 V DC power (20.4-28.8 V) and consumes 90 mA typical. It supports the EtherCAT protocol for high-speed real-time communication (cycle times down to 100 µs). The operating temperature range is -25 to +60°C. The module is certified for CE, UL, and ATEX/IECEx for hazardous locations. The compact size (30 mm x 126 mm x 26 mm) allows mounting close to sensors, reducing wiring costs. The module is suitable for use in outdoor and washdown environments due to its IP67 rating.

Technical Specifications

• Manufacturer: Beckhoff Automation

• Part Number: EP3204-0002

• Product Type: EtherCAT Box Analog Input Module

• Number of Channels: 4 (differential)

• Input Ranges: ±10 V, 0-10 V, 0-20 mA, 4-20 mA (configurable)

• Resolution: 16 bits

• Conversion Time: 1 ms per channel (typical)

• Isolation: 500 V DC (channel/bus)

• Connectors: M12 (power, EtherCAT in/out, sensor)

• Power Supply: 24 V DC (20.4-28.8 V)

• Current Consumption: 90 mA (typical)

• Communication Protocol: EtherCAT (100 Mbit/s)

• Degree of Protection: IP67

• Operating Temperature: -25 to +60 °C

• Storage Temperature: -40 to +85 °C

• Dimensions (W x H x D): 30 mm x 126 mm x 26 mm

• Certifications: CE, UL, ATEX/IECEx

Functional Description

The EP3204-0002 digitizes analog sensor signals and transmits them via EtherCAT to a master controller. Each channel can be individually configured for voltage or current mode using Beckhoff TwinCAT software. The module's high-resolution ADC and configurable filters allow precise measurement of dynamic signals. The IP67 enclosure protects against dust, water jets, and temporary submersion. The M12 connectors provide robust, vibration-resistant connections. The module can be placed directly on a machine frame, eliminating long sensor cable runs.

Applications

The Beckhoff EP3204-0002 is used in factory automation, packaging machinery, food processing equipment, and outdoor installations where centralized I/O is impractical. Typical applications include pressure monitoring in hydraulic systems, temperature measurement in ovens, and flow metering in water treatment plants.