cFP‑2020 (National Instruments)

Compact FieldPoint Real‑Time Controller (EOL, flagship of 20xx series)

1. General Description

2. Part Number

• Model: cFP‑2020

• NI PN: 188539B‑03 / 188539E‑03 / 188539H‑03

• Also known as: CFP‑2020

3. Key Specifications

• Processor: 75 MHz real‑time CPU

• Memory:

  • RAM: 32 MB DRAM

  • Non‑volatile: 64 MB onboard

  • Expansion: CompactFlash slot (2 MB–512 MB)

• I/O Slots: 8 × hot‑swappable cFP modules

• Communication:

  • Ethernet: 10/100 Mbps RJ45 (Modbus TCP, NI protocols)

  • Serial: 3 × RS‑232 DB9 + 1 × RS‑485

  • Baud rate: 110–115,200 bps

• OS: LabVIEW Real‑Time (preinstalled; supports v8.5.1 or older only)

• Programming: LabVIEW RT, NI MAX

• Power: 11–30 VDC (24 VDC nominal), redundant input support

• Power consumption: 6.1 W + I/O power

• Operating Temp: ‑25 °C to +60 °C

• Mounting: DIN rail / panel mount

• Weight: ~1.15 lbs (278 g)

• Status: EOL (discontinued)

4. Main Features

• Top‑of‑the‑line connectivity: 3×RS‑232 + 1×RS‑485 (most serial ports in cFP‑20xx series)

• Integrated controller + 8‑slot backplane: No separate backplane needed

• Standalone real‑time operation: Runs embedded LabVIEW RT logic without host PC

• Hot‑swap I/O: Replace modules online without stopping the system

• Industrial rugged: Isolated comms, self‑diagnostics, transient protection, Class I Div 2 rated

• Web‑enabled: Remote monitoring/configuration

• Legacy‑friendly: Easy integration with PLCs and older serial devices

5. Compatible Modules

• Analog input/output (voltage/current)

• Digital input/output (24 V)

• Thermocouple/RTD/relay

• Counter/timer/pulse

6. Applications

• Industrial distributed real‑time control (advanced)

• Factory automation & process monitoring (multi‑serial devices)

• Remote data acquisition & standalone logging

• Building automation (HVAC, lighting, security)

• Legacy cFP system upgrades (max serial connectivity)