The National Instruments cFP-2120 Compact FieldPoint Ethernet Controller Interface is an industrial-grade programmable automation controller engineered for embedded control and distributed I/O in rugged environments. It executes LabVIEW Real-Time applications with deterministic performance, delivering PLC-class reliability paired with PC-level flexibility for process control, discrete automation, and real-time data acquisition across networked industrial systems.
Technical Specifications
Processor & Memory
• 188 MHz industrial-grade x86 processor
• 128 MB SDRAM, 128 MB non-volatile storage
• Removable CompactFlash storage: 128 MB
• Non-volatile memory endurance: 300,000 writes per sector
• Real-time execution via LabVIEW Real-Time Engine
Network Interface
• 10/100 Mbps Ethernet with auto-negotiation
• IEEE 802.3 compliant, maximum 100 m per segment
• TCP, UDP, FTP, HTTP, and DataSocket protocol support
• Embedded web and file server portal
Serial Communications
• Three RS-232 serial ports (110 to 115,200 b/s)
• One RS-485 serial port (110 to 115,200 b/s)
• RS-485 isolation voltage: 100 Vrms maximum continuous
• RS-485 dielectric withstand: 740 Vrms for 1 minute
Power
• Input: 11 to 30 VDC
• Consumption: 6.1 W + 1.1 A
• Backup UPS/battery terminals supported
• Overall dielectric withstand: 740 Vrms for 1 minute
– Key Features
• Manages up to eight Compact FieldPoint I/O modules via connector block interface
• Supports cFP-BP-x Compact FieldPoint Backplanes
• Operating temperature: –40 to 70 °C
• Storage temperature: –55 to 85 °C
• Relative humidity: 10% to 90% non-condensing
• Maximum altitude: 2000 meters, Pollution Degree 2
• Vibration rated to 5 grms random (10–500 Hz, IEC 60068-2-64) and 5 g sinusoidal (10–500 Hz, IEC 60068-2-6)
• Shock rated 50 g, 3 ms half sine
• Weight: 278 grams
• DIP switches and LED status indicators
• Panel-mount, DIN rail, and rack-mount options
– Typical Applications
Process and discrete control systems, automated valve control, real-time control loops, embedded data logging, distributed automation networks, and industrial simulation environments.
– Compatibility & Integration
The cFP-2120 integrates with Compact FieldPoint I/O module architecture and supports standard industrial communication protocols across Ethernet and serial interfaces.















