ELX3158

The ELX3158 from Beckhoff is a high-performance module in the EL EtherCAT Terminals series designed for precise current input measurement and seamless network integration. This compact terminal operates at a 24 V DC supply voltage via dedicated power contacts, ensuring consistent powering of terminal chains. Featuring 8 single-ended inputs, it interfaces effortlessly with multiple sensors, allowing simultaneous monitoring of numerous 4–20 mA current loops. The module delivers 16-bit signed resolution for analog-to-digital conversion, supporting fine granularity in signal acquisition. With a weight of approximately 100 g, it maintains a minimal footprint while providing robust functionality in demanding industrial environments.

Performance and technical versatility are at the core of the ELX3158 design, incorporating limit value monitoring and NAMUR NE43 compliance for standardized alert handling. Its measurement uncertainty of <±0.3% of full scale> guarantees high accuracy across the entire signal current range of 4–20 mA. The terminal supports activatable FIR/IIR filters to optimize noise rejection and enhance signal stability. Connection is achieved via a 2-wire method with recommended stripping lengths of 8–9 mm, ensuring reliable wiring. Power and communication are maintained through power contacts (typical current consumption 10 mA) and an E-bus current draw of typ. 75 mA, enabling efficient daisy-chaining and synchronized data exchange. Conformity to EN 61000-6-2 / EN 61000-6-4 EMC standards affirms its resilience against electromagnetic disturbances.

Built for demanding automation frameworks, the ELX3158 supports distributed clocks for precise time synchronization across EtherCAT networks, eliminating the need for external timing modules. Its wide operating temperature range of –25 to +60 °C and storage range of –40 to +85 °C ensure reliable operation in harsh conditions, while vibration and shock resistance per EN 60068-2-6 / EN 60068-2-27 enhance durability. The module’s standard and compact process image streamlines engineering integration and simplifies configuration within control systems. Ideal for industrial automation, process control, and machinery monitoring applications, the ELX3158 delivers predictable performance, high data integrity, and seamless interoperability across diverse EtherCAT infrastructures.