I. Basic Information

Model: cFP-2020 (Part Number: 777317-2020, 188539E-03)

Manufacturer: National Instruments (NI)

Type: Embedded Real-Time PAC (Programmable Automation Controller)

Application: Multi-serial port device networking, complex real-time control, distributed I/O

Status: Out of production, highest supported version: LabVIEW RT 8.5.1

II. Hardware Specifications (Compared with cFP-2000/2010)

Processor: 75 MHz real-time processor (same as 2000/2010) Memory:

DRAM: 32 MB (same as 2010 and 2000, 16 MB)

Non-volatile storage: 64 MB (built-in, same as 2010)

Network / Serial Port (Core Differences):

Ethernet: 1 × RJ45, 10/100 Mbps (TCP/IP, Modbus TCP)

Serial Port: 4 ports - 3 × RS-232 (DB9) + 1 × RS-485 (DB9) (2010: 2 × RS-232, 2000: 1 × RS-232)

I/O Expansion: Compatible with cFP-BP-4/BP-8 backplane, up to 8 cFP I/O modules

Storage Expansion: Supports CompactFlash card (data recording / program storage)

Power Supply: 11–30 VDC, redundant power input

Temperature Range: -25 °C ~ +60 °C (industrial grade)

Size / Weight: Approximately 127 × 102 × 51 mm / 0.95 kg

III. cFP-2000 / 2010 / 2020 Quick Comparison Table

Project cFP-2000 cFP-2010 cFP-2020

Memory 16 MB DRAM 32 MB DRAM 32 MB DRAM

Built-in Storage 32 MB 64 MB 64 MB

Serial Ports 1×RS-232 2×RS-232 3×RS-232 + 1×RS-485

Typical Applications Basic Control Dual Serial Port Device Multi Serial Port + RS-485 Bus

V. Software and Protocols

Real-time System: LabVIEW Real-Time + FieldPoint Driver

Programming: LabVIEW (Recommended), LabWindows/CVI

Protocols:

Ethernet: Modbus TCP, NI Event Protocol, TCP/IP

Serial Ports: Modbus ASCII/RTU, Optomux (4 independent communication ports, RS-485 support for bus)

VI. Typical Applications

Multi-Serial Port Instrument/PLC Networking: Connect 3 RS-232 devices + 1 RS-485 bus

Complex Control in Industrial Field: Multiple loops PID, Data Recording, Gateway

Distributed I/O System: Remote Acquisition of Analog / Digital / Thermocouple

Upgrade of Old Equipment: Connect serial port devices to Ethernet SCADA

VII. and Replacement

Reason for： Single-core 75 MHz， Small Memory， Does not support the latest version of LabVIEW RT

Direct Replacement： cFP-2220

Upgrade Points： Dual Ethernet， USB， More Memory， Support LabVIEW 2020+

Compatibility： Backplane / I/O Module Fully Compatible， Program Requires Minor Migration