Description

The BECKHOFF EL3124-0090 is a high-performance 4-channel analog input EtherCAT Terminal engineered for the precise acquisition of standard industrial current signals. Operating within the 4 to 20 mA range, this terminal delivers 16-bit resolution processing through four independent differential inputs. Designed to interface directly with field instrumentation, it translates physical process variables into reliable digital values for industrial automation architectures.

A key distinguishing feature of the EL3124-0090 is its integrated TwinSAFE SC (Single Channel) technology. This specialized design enables standard analog signals to be utilized in safety-related operations. By transmitting data through secure protocols to a TwinSAFE Logic execution unit, the module allows standard signals to be evaluated for safety tasks, significantly reducing system complexity and hardware footprints in safety-critical deployments.

Housed in a compact 12 mm terminal casing, the module communicates seamlessly across the EtherCAT E-bus interface. It features integrated digital filters, distributed clocks (DC) for high-precision time synchronization, and comprehensive diagnostic monitoring to ensure consistent uptime and reliability in industrial environments.

Features

• Four independent differential analog inputs specifically designed for 4 to 20 mA signals.
• Integrated TwinSAFE SC technology to safely communicate standard analog data within safety-certified automation systems.
• High-resolution 16-bit analog-to-digital conversion for sensitive measurement acquisition.
• Support for Distributed Clocks (DC), ensuring exact, synchronized temporal sampling across the EtherCAT network.
• Configurable signal processing via selectable digital filters (FIR/IIR) and integrated limit value monitoring.
• Electrical isolation of 500 V between the internal E-bus and the field-side signal voltage.
• Space-saving 12 mm DIN rail mounting form factor with status and diagnostics LEDs.

Applications

• Process instrumentation monitoring, including flow meters, pressure transmitters, and temperature sensors.
• Safety-related signal monitoring and processing within TwinSAFE architectures.
• High-speed industrial measurement applications requiring precise temporal synchronization.
• Distributed data acquisition systems in factory and machinery automation.

Technical Specifications

Connections / Interfaces

Installation Guidelines

1. Ensure the entire automation system and associated power supplies are fully de-energized before beginning installation or removal procedures.
2. Mount the terminal onto a standard 35 mm DIN rail conforming to EN 60715, ensuring the locking mechanisms engage securely.
3. Ensure side-by-side terminal mounting using the integrated double slot and key connections to preserve structural stability and electrical contact.
4. Connect the differential 4...20 mA signal wires according to the standard terminal assignment mapping, observing appropriate conductor cross-sections and stripping lengths.
5. Ensure proper system shielding and grounding practices are observed to prevent electromagnetic interference from degrading high-resolution analog measurements.
6. Configure the terminal parameters (such as activation of FIR/IIR filters and limit values) through the TwinCAT System Manager prior to system startup.