EL3020
Beckhoff EL3020 Series 2-Channel Universal Analog Input Terminal Module (EtherCAT Compatible) (Model: EL3020)
(Model Naming Interpretation:
- EL: Core product line prefix for Beckhoff’s “EtherCAT Terminal” modules, denoting membership in the brand’s modular I/O family—designed for flexible integration into EtherCAT-based automation systems.
- 3020: Hardware configuration code; “
3″ specifies analog input functionality, “02” indicates 2 independent channels, and “0” confirms standard performance (high accuracy, wide signal support) with no optional add-ons.
- Core Positioning: The “high-speed analog input terminal for EtherCAT systems,” enabling real-time acquisition of diverse analog signals to feed into Beckhoff CX/CP controllers—critical for applications requiring fast, precise data capture (e.g., robotic force sensing, process temperature monitoring). )
2. Product Description
The EL3020 is a dedicated 2-channel analog input terminal module developed by Beckhoff Automation for the EtherCAT industrial Ethernet system, a flagship platform for high-performance automation in automotive, electronics manufacturing, and packaging industries. It integrates high-speed sampling, universal signal compatibility, EtherCAT real-time communication, and compact design to address three key challenges of analog signal acquisition in modern automation:
- Real-Time Signal Acquisition: Leverages EtherCAT’s distributed clock technology to achieve a sampling rate of up to 1 kHz per channel, with a signal latency of ≤1 µs—enabling real-time processing of dynamic analog signals (e.g., pressure fluct


