The Beckhoff EL3314-0090 EtherCAT Terminal is a high-precision 4-channel analog input module designed specifically for the acquisition of thermocouple signals. With its support for a variety of thermocouple types and integrated TwinSAFE SC (Single Channel) functionality, the EL3314-0090 provides both accurate measurement and enhanced safety features for modern automation systems.

Each of the four channels captures extremely low-level signals from thermocouples within the ranges of ±30 mV, ±60 mV, or ±75 mV, ensuring compatibility with multiple sensor types. With a 16-bit resolution, the terminal delivers precise temperature data, making it suitable for applications requiring accurate monitoring and control of thermal processes. Users can select how values are represented, choosing between temperature display in 0.1°C or 0.01°C increments or voltage resolution at 1, 2, or 4 µV per digit, depending on the demands of the application.

The EL3314-0090 incorporates Beckhoff’s innovative TwinSAFE SC technology, which enables selected terminals to be used for safety-related tasks without requiring special safety-rated hardware. By applying validated safety functions in software, standard I/O signals can be integrated into functional safety systems, providing greater design flexibility and reducing overall hardware costs. This makes the EL3314-0090 especially valuable in industries where safety and reliability are paramount.

For stable and interference-free signal acquisition, the terminal includes an input filter with a limit frequency of approximately 1 kHz, effectively suppressing high-frequency noise. The module also offers 500 V electrical isolation between the E-bus and signal voltage, protecting both the control system and connected sensors from electrical disturbances and ensuring long-term reliability in demanding industrial environments.

The terminal is powered directly via the EtherCAT E-bus, with a typical current consumption of 200 mA, making it efficient to operate and simple to integrate. Measurement values are mapped directly into the process image, ensuring seamless access to real-time data in Beckhoff’s TwinCAT software or other control platforms.

Thanks to its compact form factor and four-channel density, the EL3314-0090 saves valuable cabinet space while providing extensive measurement capabilities. Its combination of high resolution, configurable representation, and integrated safety features makes it well-suited for applications in process automation, machine building, energy systems, and safety-critical industries such as chemical or pharmaceutical production.

In summary, the Beckhoff EL3314-0090 EtherCAT Terminal delivers a precise, safe, and flexible solution for thermocouple signal acquisition. With four channels, 16-bit resolution, TwinSAFE SC technology, and robust electrical isolation, it is the ideal choice for engineers seeking a compact module that combines high accuracy with integrated functional safety.