EL3161 Beckhoff
Wake Industrial LLC is not an authorized distributor of this product.
MPN: EL3161-0000
The Beckhoff EL3161 is an analog input terminal from the EL EtherCAT Terminals series. It features a single analog input with 16-bit resolution and an input filter limit of 5 kHz. The terminal supports simultaneous sampling, offers a maximum measuring error of ±0.3% full scale, and has IP20 protection.
Internal Product Review
The Beckhoff EL3161 is an EL EtherCAT analog input terminal with 1 analog input and 16-bit resolution. Distributed Clocks support and < 1 µs clock precision give this terminal excellent synchronization for demanding measurement tasks. Single-ended grounding and ±0.3% FS max. measuring error make the EL3161 a strong choice for accurate signal acquisition.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The EL3161 is a single-channel analog input terminal produced by Beckhoff for the EL EtherCAT Terminals series. It digitizes single-ended process signals and forwards time-stamped data across the EtherCAT bus so controllers can monitor temperature, pressure, and other low-level transducers in real time. Its mounting width of only 12 mm permits dense installation on a DIN rail, while integrated feedthrough power contacts allow adjacent terminals to share system voltage without additional wiring. The terminal supports decentralized I/O architectures, reducing the amount of cabinet space and field wiring required in industrial automation systems.
The terminal accepts one analog input and digitizes it with a 16-bit converter, yielding 65,536 discrete code steps that preserve small signal variations. Conversion is simultaneous, so multiple EL3161 modules can acquire data without sampling delays between channels. The Distributed Clocks feature maintains cycle jitter of < 1 µs, enabling phase-aligned acquisition across distant EtherCAT nodes. An analog anti-aliasing filter has a cutoff frequency of 5 kHz, limiting high-frequency noise before conversion. The input impedance is > 200 kΩ, which places minimal load on sensitive sensor circuits. Process data are transmitted as one 16-bit value, while an accompanying 8-bit status field reports signal quality and operating conditions to the controller.
Measurement integrity is maintained with a maximum error of ±0.3 % FS, keeping total gain and offset deviation within a controlled range without user recalibration. Electrical isolation is not provided, so the potential difference between the signal circuit and supply lines must not exceed 30 V maximum. The internal power rail can carry up to 1 A through the twin spring contacts, allowing supply current to pass downstream to sensors and additional I/O terminals. The module uses an IP20 housing intended for installation inside clean control enclosures that prevent exposure to moisture and conductive debris. A 100 mA shield current path supports cable shielding and helps route interference away from the measurement circuit. Spring-contact connections also simplify conductor termination while maintaining a compact terminal footprint.
