EL3218
by Beckhoff
The Beckhoff EL3218 terminal from the EL EtherCAT Terminals series by Beckhoff delivers high-performance analog signal acquisition with its 8 analog voltage inputs, a measurement range of 0–10 V, and a resolution of 16 bit. Designed for single-ended signal connection, this module minimizes interference with an input impedance of > 100 kΩ. Its primary function is to capture and digitize precise voltage signals in industrial automation systems, ensuring reliable data acquisition across multiple channels.
Incorporating an automatic multiplex operation conversion feature, the EL3218 efficiently processes eight channels in sequence without additional configuration. It draws approximately 120 mA from the K-bus while consuming no power from the main contacts. Each channel includes an error LED for rapid fault detection and troubleshooting. The terminal operates from 0 °C to +55 °C, preserving signal integrity under varying ambient conditions. With compact dimensions of 15 mm x 100 mm x 70 mm, it fits neatly into standard control cabinets.
The EL3218 mounts easily on a DIN rail and carries both CE and UL approvals, confirming its compliance with international safety and performance standards. Its robust housing and high input impedance make it suitable for a variety of industrial environments, from manufacturing lines to process control. By delivering precise voltage measurements and seamless EtherCAT network integration, this terminal enhances system efficiency, reduces wiring complexity, and supports high-speed automation applications.
