.svg?v=180920048278408794651747892223){kind=small}
EL3122 | Beckhoff EtherCAT Terminal 2-Channel Analog Input 4–20 mA 16-Bit Differential
- Regular price
- $364.00
- Sale price
- $364.00
- Regular price
-
Couldn't load pickup availability
Do you need help?
Product Description P/N: EL3122
Description
The Beckhoff EL3122 is a 2-channel analog input EtherCAT Terminal designed for precise current measurement in the 4–20 mA range. Featuring 16-bit resolution, differential inputs, and 500 V electrical isolation, it ensures accurate signal acquisition and reliable data transmission in industrial automation systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Beckhoff |
| Category | Industrial Automation |
| Part Number | EL3122 |
| Subcategory | EtherCAT Terminal |
| Function | 2-channel analog input for current measurement |
| Number of Inputs | 2 (differential) |
| Signal Current | 4–20 mA |
| Resolution | 16 bit (including sign) |
| Conversion Time | ~50 µs (fast mode ~35 µs) |
| Internal Resistance | Typ. 85 Ω + diode voltage |
| Input Filter Limit Frequency | 5 kHz |
| Common Mode Voltage (UCM) | Max. 10 V |
| Measurement Error | < ±0.3% (relative to full-scale value) |
| Surge Voltage Resistance | Max. 35 V |
| Electrical Isolation | 500 V (E-bus/signal voltage) |
| Distributed Clocks | Yes |
| Power Supply | Via the E-bus |
| Current Consumption (E-bus) | Typ. 170 mA |
| Bit Width in Process Image | Inputs: 8 bytes |
| Special Features | FIR/IIR filters, limit value monitoring, standard and compact process image |
| Protection Class | IP20 |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 95%, non-condensing |
| Weight | Approx. 55 g |
Information About EL3122
The EL3122 belongs to Beckhoff’s EL3xxx EtherCAT Terminal series and is engineered for accurate current signal measurement from analog sensors and transmitters. It supports two differential inputs in the 4–20 mA range, digitizing the measured signals at a resolution of 16 bits for precise and stable data acquisition. Integrated electrical isolation between the E-bus and signal voltage enhances system reliability and prevents interference. The EL3122 supports distributed clock functionality for synchronous data collection across multiple channels, ensuring deterministic system performance. Its high input filter frequency of 5 kHz and fast conversion time of 50 µs allow accurate signal capture even in dynamic processes. Additional features such as activatable FIR/IIR filters and limit value monitoring make it suitable for complex automation applications requiring both performance and diagnostic flexibility.
Key Features:
- Dual Differential Channels: Two isolated analog inputs for measuring 4–20 mA current signals from sensors, transducers, and process devices.
- High Measurement Accuracy: 16-bit resolution and ±0.3% error tolerance ensure precise signal acquisition for critical applications.
- Electrical Isolation: 500 V isolation between field and bus systems guarantees safe and interference-free operation.
- Fast Signal Processing: Conversion time of 50 µs (35 µs in fast mode) supports rapid and dynamic process monitoring.
- Wide Input Compatibility: Handles standard 4–20 mA current loops, compatible with industrial transmitters and actuators.
- Integrated Filtering and Monitoring: Configurable FIR/IIR filters and limit value alarms improve signal quality and fault detection.
- Distributed Clock Synchronization: Enables deterministic data sampling across multiple terminals for coordinated process control.
- Rugged Industrial Design: Operates from -25°C to +60°C with 95% humidity resistance, suitable for harsh environments.
- Compact Modular Integration: Fits seamlessly into EtherCAT networks for flexible, scalable, and space-efficient automation layouts.
- Surge Protection and Overvoltage Resistance: Withstands up to 35 V input surge to ensure long-term reliability in noisy systems.
The EL3122 delivers the reliability and precision required for process automation, current monitoring, and signal conditioning in EtherCAT-based industrial control systems.
Description
The Beckhoff EL3122 is a 2-channel analog input EtherCAT Terminal designed for precise current measurement in the 4–20 mA range. Featuring 16-bit resolution, differential inputs, and 500 V electrical isolation, it ensures accurate signal acquisition and reliable data transmission in industrial automation systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Beckhoff |
| Category | Industrial Automation |
| Part Number | EL3122 |
| Subcategory | EtherCAT Terminal |
| Function | 2-channel analog input for current measurement |
| Number of Inputs | 2 (differential) |
| Signal Current | 4–20 mA |
| Resolution | 16 bit (including sign) |
| Conversion Time | ~50 µs (fast mode ~35 µs) |
| Internal Resistance | Typ. 85 Ω + diode voltage |
| Input Filter Limit Frequency | 5 kHz |
| Common Mode Voltage (UCM) | Max. 10 V |
| Measurement Error | < ±0.3% (relative to full-scale value) |
| Surge Voltage Resistance | Max. 35 V |
| Electrical Isolation | 500 V (E-bus/signal voltage) |
| Distributed Clocks | Yes |
| Power Supply | Via the E-bus |
| Current Consumption (E-bus) | Typ. 170 mA |
| Bit Width in Process Image | Inputs: 8 bytes |
| Special Features | FIR/IIR filters, limit value monitoring, standard and compact process image |
| Protection Class | IP20 |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 95%, non-condensing |
| Weight | Approx. 55 g |
Information About EL3122
The EL3122 belongs to Beckhoff’s EL3xxx EtherCAT Terminal series and is engineered for accurate current signal measurement from analog sensors and transmitters. It supports two differential inputs in the 4–20 mA range, digitizing the measured signals at a resolution of 16 bits for precise and stable data acquisition. Integrated electrical isolation between the E-bus and signal voltage enhances system reliability and prevents interference. The EL3122 supports distributed clock functionality for synchronous data collection across multiple channels, ensuring deterministic system performance. Its high input filter frequency of 5 kHz and fast conversion time of 50 µs allow accurate signal capture even in dynamic processes. Additional features such as activatable FIR/IIR filters and limit value monitoring make it suitable for complex automation applications requiring both performance and diagnostic flexibility.
Key Features:
- Dual Differential Channels: Two isolated analog inputs for measuring 4–20 mA current signals from sensors, transducers, and process devices.
- High Measurement Accuracy: 16-bit resolution and ±0.3% error tolerance ensure precise signal acquisition for critical applications.
- Electrical Isolation: 500 V isolation between field and bus systems guarantees safe and interference-free operation.
- Fast Signal Processing: Conversion time of 50 µs (35 µs in fast mode) supports rapid and dynamic process monitoring.
- Wide Input Compatibility: Handles standard 4–20 mA current loops, compatible with industrial transmitters and actuators.
- Integrated Filtering and Monitoring: Configurable FIR/IIR filters and limit value alarms improve signal quality and fault detection.
- Distributed Clock Synchronization: Enables deterministic data sampling across multiple terminals for coordinated process control.
- Rugged Industrial Design: Operates from -25°C to +60°C with 95% humidity resistance, suitable for harsh environments.
- Compact Modular Integration: Fits seamlessly into EtherCAT networks for flexible, scalable, and space-efficient automation layouts.
- Surge Protection and Overvoltage Resistance: Withstands up to 35 V input surge to ensure long-term reliability in noisy systems.
The EL3122 delivers the reliability and precision required for process automation, current monitoring, and signal conditioning in EtherCAT-based industrial control systems.