In the process of modern industrial automation evolving towards digitization and intelligence, human-computer interaction interfaces are no longer limited to simple displays and button operations, but have gradually evolved into comprehensive control platforms that integrate powerful computing power, multi finger touch experience, and high environmental adaptability. The Beckhoff CP27xx series built-in panel PC is a typical representative of this trend - it perfectly integrates high-performance computing hardware with industrial grade multi touch displays, and provides a full stainless steel front panel selection for industries with strict hygiene requirements such as food and beverage, pharmaceuticals, etc. This article will be based on the CP27xx series technical manual and provide an in-depth analysis of the full lifecycle technical points of the platform, including hardware architecture, long-distance signal transmission, cabinet installation, dual Ethernet port real-time strategy, and battery and storage medium replacement.
Chapter 1: Product Positioning and Hardware Architecture Analysis
1.1 Applicable scenarios and core positioning
The CP27xx series is a built-in panel PC designed specifically for installation on control cabinet doors or console panels, suitable for industrial scenarios that require localized high-performance computing and rich visual interaction. It is equipped with a 3.5-inch motherboard, Intel processor, and CFast storage, capable of handling diverse automation and visualization tasks, IoT data preprocessing, HMI applications, and even axis control tasks.
Overview of Core Features:
Front panel IP65/rear IP20: dustproof and waterproof, suitable for industrial sites.
Multi finger Touch: Supports gesture operations to improve interaction efficiency.
Aluminum shell, optional stainless steel front panel: meets hygiene grade application scenarios.
Built in fTPM 2.0 security module: enhances system information security.
1.2 Display Size and Resolution Matrix
CP27xx offers up to eight display size and resolution combinations, covering a wide range of needs from 12 inches to 24 inches:
12 inch (800 × 600) 4:3 and 12.1 inch (1280 × 800) 16:10
15 inches (1024 × 768) 4:3 and 15.6 inches (1366 × 768) 16:9
18.5 inches (1366 × 768) 16:9 and 19 inches (1280 × 1024) 5:4
21.5-inch (1920 × 1080) 16:9 and 24 inch (1920 × 1080) 16:9
The introduction of widescreen models (16:9/16:10) enables the CP27xx to better adapt to modern HMI screen layouts, especially suitable for complex operating interfaces that require simultaneous display of trend charts, alarm lists, and device navigation.
1.3 Push Button Extension
CP27xx supports the optional C9900-G0xx button expansion kit, which provides physical buttons outside of the touch screen to meet application scenarios that require blind operation or emergency shutdown. The specific model correspondence is as follows:
Panel model button extension ordering code
CP2712 C9900-G002
CP2713 C9900-G009
CP2715 C9900-G003
CP2716 C9900-G004
CP2718 C9900-G005
CP2719 C9900-G006
CP2721 C9900-G008
CP2724 C9900-G007
Chapter 2: Interface Architecture and Long Distance Transmission Scheme
2.1 Interface Overview and Layout
All interfaces of CP27xx are located in the Connection Section at the lower rear of the device, and the basic configuration includes:
DVI (X103): External second monitor.
USB (X104-X107): A four-way USB interface used to connect external devices such as keyboards, mice, and USB drives.
Ethernet RJ45 (X108, X109): Dual Gigabit Ethernet ports, supporting 100/1000 Mbit/s adaptation.
Power supply (X110): 8-pin voltage socket, supporting 24 VDC main power supply and UPS battery connection.
2.2 Real time strategy for dual Ethernet ports (key differences)
The two Ethernet ports of CP27xx are not exactly the same, and there is a clear distinction between their controller chip and real-time performance - which is crucial for EtherCAT and real-time Ethernet applications:
X109 (LAN2, i210 controller, PCIe direct connection): Suitable for EtherCAT applications with a cycle time of ≤ 1ms and supports Distributed Clocks. For motion control scenarios that require high-precision synchronization, this port must be used.
X108 (LAN1, i219 controller, integrated into chipset): Suitable for EtherCAT or real-time Ethernet applications with a cycle time of>1ms, does not support distributed clocks.
Engineering suggestion: When planning an EtherCAT network, it is essential to confirm that the main network cable is connected to the X109 (LAN2) port to ensure optimal real-time performance and synchronization accuracy. The LED indicator lights of the two network ports have the same meaning: the green constant light on the left side indicates that the link is connected, and the flashing light indicates data transmission; The orange color on the right represents 100 Mbit/s, and the green color represents 1000 Mbit/s.
2.3 USB interface standards and version differences
According to the different device generations, there are differences in the USB standards supported by the four USB interfaces of CP27xx: