Manufacturer: BECKHOFF
Product No.: EL3356-0020
Country of origin:Germany
Product Type: EtherCAT Terminals
Payment: T/T, Western Union
Weight: 2000g
Dimensions: 12 mm x 100 mm x 68 mm
Shipping port: Xiamen
Warranty: 12 months
Designed specifically for high-accuracy gravimetric and force monitoring applications, the Beckhoff EL3356-0020 EtherCAT Terminal processes differential signals from full-bridge strain gauges with exceptional speed and precision. This terminal interfaces directly with resistor bridges to deliver reliable, factory-calibrated measurements in industrial process environments.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Beckhoff |
| Model Number | EL3356-0020 |
| Product Type | EtherCAT Terminal |
| Number of Inputs | 2, for 1 full-bridge resistor bridge |
| Technology Type | Resistor bridge, strain gauge |
| Signal Type | Differential |
| Distributed Clocks | Yes |
| Measuring Range UD | Max. -25 to +25 mV rated voltage |
| Measuring Range UREF | Max. -12 to +12 V rated voltage |
| Internal Resistance | > 200 kOhm (UREF), > 1 MOhm (UD) |
| Input Filter Limit | 10 kHz low pass (-3 dB) |
| Conversion Time | 0.1 to 250 ms (configurable) |
| Resolution | 24 bit (32 bit presentation) |
| Measurement Error | < +/-0.01 % of calculated load value |
| E-bus Current Draw | Typ. 280 mA |
| Calibration Type | Factory calibrated (with certificate) |
| Operating Temperature | 0 to +55 degC |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm |
| Connection Technology | Spring-actuated cage clamp |
| Wire Cross Section | Solid/Stranded: 0.08 - 2.5 mm2 (AWG 28 - 14) |
| Shipping Weight | 2.0 kg |
Comparing the EL3356-0020 to standard EL3356 terminals, the primary differentiator is the included factory calibration certificate stored directly within the terminal's internal non-volatile memory. To maintain compatibility with TwinCAT projects, ensure the corresponding EtherCAT XML Device Description (ESI) file matches this precise hardware revision to prevent E-bus initialization failures.
When deploying inside high-density control panels, thermal fluctuations can degrade calibration accuracy. While the active self-calibration routine corrects for gain and offset drift, mounting the terminal away from high-heat components like variable frequency drives is recommended. Additionally, aggressive setting of dynamic filters (CoE 0x8000) may introduce signal delays that can affect high-speed check-weighing applications.
Shielding is critical when dealing with microvolt-level differential signals (UD). Run strain gauge cabling through dedicated conduits and terminate the overall shield directly to the grounded DIN rail via low-impedance grounding clamps. Ensure CoE parameters (such as the notch filter for 50 Hz/60 Hz noise rejection) are aligned with your localized grid frequency to maximize signal stability.
Ensure the main power supply and E-bus system are entirely de-energized before mounting, wiring, or removing this terminal. Failure to do so can result in electrical shock, transient surges on the bus, or permanent damage to the high-precision differential circuit of the measuring module.
Global Express Shipping
Returns & Warranty
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|
Build and verify a first TwinCAT PLC project on a Beckhoff IPC. This checklist covers target selection, EtherCAT discovery, I/O mapping, safe activation, restart tests, and commissioning records.
A practical commissioning sequence for KEPServerEX OPC UA connections: define data ownership, test tags locally, configure endpoint and certificate trust, limit access, then verify failure recovery...
Commissioning an Ethernet-connected PLC often starts with the laptop, not the controller. Learn how to record existing settings, choose a temporary address, test connectivity, and restore the plant...
Combustible dust controls require more than alarms. Learn how to map dust generation, select instrumentation, design interlocks, handle failed feedback, test safe states, and maintain the full...
Hairpin windings raise slot fill and support compact traction motors, but conductor geometry, AC losses, insulation damage, weld quality, and cooling determine whether the design meets its targets.
Use Ansible to standardize SCADA server changes without expanding OT risk. This guide covers inventories, idempotent playbooks, staged testing, credentials, logging, and practical rollback controls.
