Beckhoff EL3112-0011 EtherCAT Terminal 2-Channel Analog Input Module

Description

Designed for high-precision industrial data acquisition, the Beckhoff EL3112-0011 is a 2-channel analog input terminal optimized for differential current measurement. This module processes bipolar signals in the range of -20 mA to +20 mA with a high-resolution performance of 16 bits (including sign). Operating directly within the modular EtherCAT terminal system, it leverages Distributed Clocks (DC) to ensure highly synchronized measurements across distributed networks with precision down to less than 1 microsecond.

Engineered for high-speed dynamic applications, the EL3112-0011 offers a standard conversion time of approximately 50 microseconds, which can be accelerated to 35 microseconds in fast mode. It features configurable analog filters (FIR/IIR) and limit value monitoring to preprocess signals directly at the I/O level, reducing communication bus load and streamlining control loop response.

Features

• Two differential analog inputs for bipolar current measurements (-20 to +20 mA).
• High-precision 16-bit resolution (including sign) for accurate signal reconstruction.
• Integrated Distributed Clocks (DC) ensuring synchronization accuracy of << 1 µs.
• Selectable digital filtering options (FIR/IIR) and limit value monitoring.
• Fast conversion rates with a dedicated fast-mode response (~ 35 µs).
• Galvanic isolation of 500 V between the E-bus and signal channels for enhanced noise immunity.

Applications

• High-speed closed-loop control systems.
• Industrial process monitoring and telemetry.
• Test bench setups and quality control systems.
• Power generation and distribution monitoring.

Technical Specifications

Installation Guidelines

• Mounting: Mount horizontally or vertically on a standard 35 mm DIN rail conforming to EN 60715 using the integrated locking mechanism.
• Wiring: Use solid, flexible, or ferruled conductors. Connection relies on a tool-actuated tension clamp connection. Wire strip length must be between 8 mm and 9 mm.
• Power & Grounding: Ensure the E-bus connections are clean and aligned during side-by-side terminal mounting. Implement proper shielding for differential analog signals to prevent electro-magnetic interference.

Compliance and Certifications

• CE
• UL
• ATEX: II 3 G Ex nA IIC T4 Gc