Siemens 6ES7677-2AA41-0FK0 ET 200SP Open Controller CPU 1515SP PC

Siemens 6ES7677-2AA41-0FK0 is a SIMATIC ET 200SP Open Controller CPU 1515SP PC with an integrated 128-point HMI, designed for compact, PC-based control within the ET 200SP distributed I/O family. It runs Windows Embedded Standard 7 Professional 64-bit on 4 GB RAM with a 30 GB CFAST card preinstalled, enabling native PC‑style software control alongside S7‑1500 functionality. The Open Controller uses a 24 V DC supply and provides standard ET 200SP bus connectivity with PROFINET, plus Ethernet and USB interfaces for local visualization, diagnostics, and project data transfer. As part of the ET 200SP Open Controller line, it hosts a complete automation environment capable of executing STEP 7/TIA Portal projects and managing data via datasets, while delivering the familiar Siemens programming model of the S7‑1500. The built‑in 128‑point HMI supports on‑machine operator interaction without a separate panel, making it suitable for machines that require on‑board visualization along with PLC logic. Typical applications include packaging lines, assembly and test cells, conveyors, and other compact automation tasks where space is at a premium and integrated visualization improves operability. With 4 GB RAM and a 30 GB CFAST module, this CPU provides ample local storage for firmware, projects, and diagnostics, while preserving the scalability and online diagnostics capabilities of the S7‑1500 family through the TIA Portal.