The WAGO 752-8400 Edge Controller 400 is a DIN-rail-mountable automation controller that merges traditional PLC determinism with the openness of a Linux operating system. Powered by a Xilinx Zynq UltraScale+ system-on-chip with four ARM Cortex-A53 cores, it runs ctrlX OS — a Linux-based platform that executes IEC 61131-3 control logic, OPC UA server, and containerized applications concurrently. With 2 GB of DRAM, 4 GB of eMMC Flash, and a microSD card slot supporting up to 32 GB of removable storage, the 752-8400 has the compute headroom to host edge analytics, machine learning inference, and protocol translation alongside real-time machine control.

How does ctrlX OS change what a PLC can do?

Unlike conventional PLC firmware where the runtime is fixed at manufacture, ctrlX OS supports an app-based model: users install only the functions they need from the ctrlX App Store — PLC runtime, motion control, vision processing, Node-RED data flows, MQTT broker, or REST API server — and remove or update them over the air. Apps from WAGO and third-party developers run in isolated Linux containers with defined resource limits, preventing a data-logging container from starving the PLC runtime of CPU cycles. Standard IEC 61131-3 programming via CODESYS is retained, so existing PLC code and engineering workflows migrate unchanged.

Why three Ethernet ports?

Three independent RJ-45 Ethernet interfaces enable network segmentation without an external managed switch. Port XF10 typically connects to the machine-level network (PROFINET, EtherNet/IP, or Modbus TCP field devices). Port XF50 connects to the enterprise IT network for MES/ERP data exchange via OPC UA, MQTT, or HTTPS. Port XF51 connects to a separate cloud or remote-access network. Internal firewall rules prevent traffic from crossing between ports unless explicitly configured, satisfying IT security policies that forbid direct routing between OT and IT networks. A USB Type-C host port supports peripherals such as a configuration tablet, USB-to-serial adapter, or Wi-Fi dongle for wireless commissioning.

Can it survive in harsh industrial environments?

The 752-8400 is rated for operation from -25 to +55 degrees C with 5–85% non-condensing humidity, and withstands vibration (5–150 Hz at 1 g) and shock (15 g, 11 ms semi-sinusoidal) per EN 60068-2-6 and -2-27. The 42 mm-wide housing mounts on standard 35 mm DIN rail. Input voltage accepts 18–31.2 VDC with internal eFuse protection and suppressor diodes against transients up to 1500 W. CE, UL Ordinary Locations, and EAC certifications support global deployment. WAGO manufactures the 752-8400 in Germany.