NI cFP-DI-304 Compact FieldPoint 32-Channel 24VDC Sinking Digital Input Module

Technical Specifications

Model:cFP-DI-304

Brand:NI

Part No:777318-304

Product type:Compact FieldPoint 32-Channel Sinking Digital Input Module

Channels:32 sinking digital input channels

Input voltage:0–30VDC;8 channels support up to 60VDC overvoltage

Logic level:OFF ≤5V,ON ≥10V,minimum 2V hysteresis

Isolation:250Vrms CAT II channel-to-ground isolation,2300Vrms transient withstand

Update rate:1kHz full channel update

Protection:per-channel overvoltage & reverse voltage protection

Power consumption:1.4W

Dimension:109.5mm91.4mm25.4mm

Weight:0.193kg

Interface:Screw terminal I/O,Compact FieldPoint backplane connector

Operating temperature:-40℃ ~ +70℃

Storage temperature:-55℃ ~ +85℃

Relative humidity:10~90% non-condensing

Certification:CE,Class I Division 2

System compatibility

cFP-DI-304 belongs to NI Compact FieldPoint platform.It works with cFP series backplanes and real-time controllers,supported by LabVIEW and NI FieldPoint drivers,widely used for limit switch,proximity sensor and relay contact signal acquisition in industrial control systems.It is spare part for legacy automation equipment overhaul.

Function

cFP-DI-304 is hot-swappable 32-channel sinking digital input module for Compact FieldPoint system.It collects 24VDC discrete on/off signals from field sensors and switches.Channel-to-ground isolation suppresses electrical interference,each channel equipped with status LED,supports hot swap replacement without system shutdown.

Installation

Insert cFP-DI-304 into Compact FieldPoint backplane,tighten captive mounting screws.Wire field switch signals to front screw terminals.Take ESD protection before installation,supports hot swap operation.

Interface

‑Front screw terminal block for digital input signals

‑Compact FieldPoint backplane connector

‑POWER,READY and 32 individual channel status LED indicators

Feature

cFP-DI-304 classic NI isolated sinking digital I/O module.Typical faults:terminal block corrosion,input circuit damage,backplane pin oxidation.Inspect terminals and test channel status before replacement.

Diagnostic

Fault phenomenon:no channel status,intermittent signal,incorrect input state.Check wiring and terminal tightness,field sensor power supply,verify backplane communication and module status LED.

Product Brief

cFP-DI-304 is NI Compact FieldPoint 32-channel sinking digital input module for 24VDC discrete field signals,with 250Vrms isolation,hot swappable,wide temperature range for industrial switch and sensor signal monitoring.Mainly used for maintenance and replacement of old industrial automation equipment.ESD protection must be followed during handling.