Beckhoff CP6631-0000-0020 CP Series Built-in Panel PC

Description

Providing a dedicated control and visualization interface directly at the machine, the Beckhoff CP6631-0000-0020 built-in Panel PC integrates a power-efficient ARM Cortex-A8 processor within a ruggedized front-panel housing. This control unit is optimized for medium-scale automation applications running TwinCAT 2 or TwinCAT 3 PLC runtimes, categorized under performance class 30. Designed with a fanless architecture and an aluminum front bezel paired with a sheet-steel rear cover, it delivers reliable operator control and monitoring in demanding factory floor environments.

Key Features

• High-Contrast Display: Equipped with a 12-inch display offering an 800x600 resolution and a single-finger touch screen for simple navigation.
• Embedded Processing: Driven by an ARM Cortex-A8 processor running at 1 GHz, backed by 1 GB of DDR3 RAM.
• Non-Volatile Storage: Features 128 kByte of on-board NOVRAM for secure data retention of persistent variables during sudden power cycles.
• Fieldbus Integration: Built-in dedicated EtherCAT interface alongside a standard 10/100BASE-T Ethernet port for seamless industrial network integration.
• Compact Flash Architecture: Uses a 512 MB microSD card configuration for the operating system and user applications.

Heavy Industrial Applications

• Machine-Level HMI/PLC: Direct integration into control cabinets and operating consoles of packaging, assembly, and wood-processing machinery.
• Distributed Fieldbus Masters: Acting as an on-site controller and EtherCAT master for local safe and non-safe I/O networks.
• Material Handling Controls: Managing conveyor routing, sorting systems, and specialized production cell monitoring.

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility

The CP6631-0000-0020 operates within TwinCAT performance category 30. If migrating from older x86-based CP series units, verify that your TwinCAT library code does not contain platform-specific assembly functions or dependencies incompatible with the ARM architecture. Projects compiled for standard Windows runtime environments must be re-targeted and re-compiled for Windows Embedded Compact 7 (CE) inside the TwinCAT system manager.

Application Pitfalls & Engineering Notes

This Panel PC utilizes passive, fanless cooling via convection. To prevent thermal throttling in high-ambient environments, ensure a minimum of 50 mm clearance behind the sheet-steel rear cover and verify that the cabinet internal ambient temperature does not exceed 55 degC. Ensure that the front mounting seal is fully seated when installing in cutout areas prone to high moisture or oil mist, maintaining the IP65 integrity.

Commissioning & Wiring Tips

When configuring the 128 kByte NOVRAM, explicitly declare persistent variables in the TwinCAT program. The hardware writes directly to this physical non-volatile storage area upon power degradation without needing external batteries. Always separate the 24V DC incoming system power supply lines from heavy inductive load switching sources to protect the sensitive ARM motherboard from severe voltage transients.

Installation Guidelines