CFP-1804

The National Instruments CFP-1804 is a four-slot Ethernet/serial interface for Compact FieldPoint systems. The cFP-180x family supports Ethernet and RS-232 communication, including Modbus TCP over Ethernet and Modbus ASCII or RTU over serial.

ManufacturerNational Instruments

ModelCFP-1804

Part Number779490-01

Product Type4-slot Ethernet/serial interface

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PlatformCompact FieldPoint

I/O module positions4

Communication interfacesEthernet and RS-232

Modbus protocolsTCP, ASCII, and RTU

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Overview

Product overview

Key product information and technical features.

The CFP-1804 provides a four-slot Ethernet/serial interface within the Compact FieldPoint platform. NI identifies it separately from the eight-slot cFP-1808, making slot capacity an important distinction when selecting equipment for an existing system.

NI documents Ethernet, RS-232, or simultaneous use of both interfaces for the cFP-180x family. Ethernet communication supports Modbus TCP, while serial communication supports Modbus ASCII and Modbus RTU.

Four-slot configuration for Compact FieldPoint I/O.
Ethernet and RS-232 communication interfaces.
Modbus TCP communication over Ethernet.
Modbus ASCII and Modbus RTU communication over serial.
cFP-180x backplane mounting support for cFP-CB-1, cFP-CB-2, and cFP-CB-3 connector blocks.

Verified specifications

Technical data

Verified product specifications.

Product type	Ethernet/serial interface
Slot count	4 slots
Communication interfaces	Ethernet; RS-232
Ethernet Modbus protocol	Modbus TCP
Serial Modbus protocols	Modbus ASCII; Modbus RTU

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National Instruments

Manufacturer

Compact FieldPoint

Modular I/O platform

CFP-1804

Four-slot Ethernet/serial interface

Connector blocks

NI documents cFP-CB-x connector-block mounting on cFP-180x backplanes.

Confirm the selected I/O module and connector-block requirements before assembly; connector-block selection depends on the signal and wiring application.

Manuals & software