EJ4134 Beckhoff
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MPN: EJ4134-0000
The Beckhoff EJ4134 is an analog output module from the EJ EtherCAT Plugins series with four output channels. It features an E-bus backplane with a data rate of 100 Mbit/s and 3.3 V voltage, and operates with a 24 VDC field supply. The module uses LVDS as its physical layer and is mounted on a signal distribution board.
Internal Product Review
The EJ4134 is an analog output EtherCAT plugin engineered for signal distribution board mounting. A 4-channel configuration with 24 VDC field supply supports efficient integration and stable output performance in distributed control assemblies. E-bus communication at 100 Mbit/s is a strong technical advantage for responsive signal handling.
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Product Description:
The EJ4134 output module is produced by Beckhoff for the EJ EtherCAT Plugins series. It is a compact plug-in card that mounts beside other EtherCAT function modules and provides multiple voltage channels for field devices. Within an automation system, the module converts digital process values from an EtherCAT controller into proportional analog signals, allowing actuators or transducers to receive setpoints without separate signal terminals. Its plug-in format reduces assembly time while preserving the deterministic timing required for coordinated control over the EtherCAT segment.
Data exchange with the host occurs through the backplane’s E-bus, which uses a differential line pair reserved for EtherCAT plug-in cards. The module provides four independent analog output channels, allowing the controller to assign a separate setpoint to each connected field device. Communication bandwidth over the bus reaches 100 Mbit/s, so updated process values can reach the outputs within normal control-loop cycles. Internal logic and digital-to-analog converters receive power from the backplane’s 3.3 V supply, eliminating the need for separate local power connections. The device functions as an analog output unit, with each channel producing a voltage signal that changes linearly according to the numerical value written by the EtherCAT master.
Power for the output stages is supplied through a 24 V DC field supply that enters the distribution board through dedicated traces, keeping load power separate from the control electronics. The module installs directly on a signal distribution board, so board-to-board connectors carry both data and power without conventional DIN-rail terminals. Backplane communication uses LVDS signaling, which supports high-speed data transmission with low electromagnetic emissions across the short internal connection. The module belongs to the EJ EtherCAT Plugins architecture and uses the uniform mechanical dimensions required by compatible distribution boards. EEPROM-based identification allows the EtherCAT controller to recognize the installed module and retrieve the information needed for system configuration.
