- Connection technology: 1-wire
- Specification: EN 61131-2, type 1/3
- Number of inputs: 16
- Nominal voltage: 24 V DC (-15%/+20%)
- “0” signal voltage: -3…+5 V (EN 61131-2, type 1/3)
- Input current: typ. 3 mA (EN 61131-2, type 3)
- Input filter: typ. 3.0 ms
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- Brand: Beckhoff
Beckhoff EL1809 EtherCAT Terminal
Mfr # EL1809
$152.02
/ea
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- 1-wire connection technology: enables simplified, space-efficient wiring of multi-channel sensors.
- High-density 16-channel input in a 12 mm housing: packs numerous inputs into a small form factor.
- Integrated 3 ms input filter (EN 61131-2, type 1/3): ensures reliable signal readings by eliminating switch bounce and transient disturbances.
- Electrical isolation and robust industrial specs: features 500 V isolation between E-bus and field, wide temperature range, high EMC/vibration resistance, and minimal current draw.
The Beckhoff EL1809 is a compact yet powerful 16-channel digital input EtherCAT terminal engineered for modern industrial automation. Utilizing 1-wire connection technology, the EL1809 streamlines wiring by allowing multi-channel sensors to interface using a single conductor per channel—a major boon in space-constrained control cabinets. This approach not only reduces clutter but also speeds installation significantly.
Beckhoff Automation
TME
Designed with efficient space utilization in mind, the EL1809 delivers 16 discrete input channels within a slim 12 mm housing, a hallmark of Beckhoff’s High-Density (HD) EtherCAT Terminals.
TME
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Its compact design enables a high packing density, ideal for complex systems requiring numerous I/O points.
Beckhoff Automation
TME
Signal reliability is a priority: each input features an integrated 3 ms input filter, conforming to EN 61131-2, type 1/3, which effectively suppresses mechanical switch bounce and high-frequency noise—enhancing signal integrity and preventing false triggering.
Beckhoff Automation
TME
This ensures that even in electrically noisy environments, process-level signals are accurately captured.
Robustness is another standout trait. The terminal provides 500 V electrical isolation between the EtherCAT bus and field-level signals, safeguarding both communication and drive systems from interference.
It also boasts wide ambient ratings—from -25 °C to +60 °C operational and -40 °C to +85 °C for storage—together with high vibration and shock resistance, and full compliance with EN 61000-6-2/-6-4 EMC standards for immunity and emissions.
Beckhoff Automation
Moreover, the EL1809 is power-efficient. It draws only about 3 mA per input (in type 3 conditions), with typical E-bus consumption of 100 mA and a minimal 4 mA plus load from the power contacts.
Wake Industrial
All inputs adhere to standard industrial levels: “0” signal at -3…+5 V, “1” signal ranging from 11…30 V, within the 24 V DC nominal range (±15 %/ +20 %).
Beckhoff Automation
The terminal is also lightweight (~65 g), making it an obvious choice where both board real estate and weight are considerations.
Wake Industrial
| Manufacturer | Beckhoff |
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