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NI CFP-DI-304 Digital Input Module

Guizhou Yuanmiao Automation Equipment Co., Ltd.
1Yr
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NI CFP-DI-304 Digital Input Module photo-2
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Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Global universal model
Condition:
Other, Global universal model
Task:
Other, Global universal model
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Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.

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Material Other, Global universal model
Condition Other, Global universal model
Task Other, Global universal model
Mathematical Model Other, Global universal model
Signal Other, Global universal model
Customized Non-Customized
Structure Other, Global universal model
Input Impedance Dry contacts ≥100kΩ
Input Impedance Wet contacts ≥10kΩ
Operating Temperature Range −40°C to +70°C
NI CFP-DI-304Functional Features
  • Digital Input Channels
    Provides 16 isolated digital input channels, supporting simultaneous acquisition of multiple switch signals (e.g., on/off states of buttons, limit switches, and proximity sensors).
  • High Anti-Interference Design
    Each channel features 2500Vrms electrical isolation, effectively preventing electromagnetic interference and voltage surges in industrial environments to enhance system reliability.
  • Wide Voltage Compatibility
    Supports multiple input voltage ranges:

    • Dry contacts: 5–30V DC (logic "1") / 0–1V DC (logic "0")

    • Wet contacts: 10–30V DC (logic "1") / 0–5V DC (logic "0"), adapting to different sensor types.

  • High-Speed Acquisition Capability
    The maximum sampling rate per channel reaches 100kHz, suitable for real-time acquisition of high-frequency pulse signals (e.g., encoder counting, motor speed monitoring).
  • Plug-and-Play & Hot Swap
    Supports hot swapping in the CFP system, allowing module replacement without powering off for convenient on-site maintenance.

CFP-DI-304 (1)

CFP-DI-304 (2)

Technical Parameters
Parameter TypeSpecific Index
Number of Input Channels16 isolated digital inputs
Resolution1 bit (logic 0/1)
Input Voltage RangeDry contacts: 5–30V DC (high)/0–1V DC (low)
Wet contacts: 10–30V DC (high)/0–5V DC (low)
Isolation Voltage2500Vrms (isolation between channels and input/output)
Input ImpedanceDry contacts: ≥100kΩ
Wet contacts: ≥10kΩ
Sampling RateUp to 100kHz per channel
Input FilterHardware filtering (configurable as 1ms/10ms/100ms/1000ms) to reduce signal jitter
Operating Temperature Range−40°C to +70°C
Application Areas
  • Industrial Automation Monitoring
    Acquires start/stop states of production line equipment and limit switch signals for equipment operation monitoring (e.g., conveyor belt detection, robotic arm position feedback).
  • Motor & Motion Control
    Connects to encoder pulse signals for real-time monitoring of motor speed or position (e.g., closed-loop control of servo motors, machine tool feed axis positioning).
  • Safety & Alarm Systems
    Connects safety devices like smoke sensors and emergency stop buttons to trigger alarm or emergency shutdown logic (e.g., factory fire linkage control).
  • Energy & Building Automation
    Acquires switch signals (e.g., valve on/off states, lighting control signals) for intelligent building management systems (BMS) or energy monitoring.

CFP-DI-304 (4)

CFP-DI-304 (3)

Collaboration with Other CFP Modules
  • Integration with NI CFP-AO-210 (Analog Output Module)
    Acquires equipment status signals (e.g., motor operation feedback) via the DI module and combines with AO module output control signals to achieve closed-loop control (e.g., adjusting pump output flow based on pressure sensor status).
  • Connection with NI CFP-CB-1 (Interface Module)
    Connects field sensor cables through CFP-CB-1 screw terminals, transfers them to the DI module for signal acquisition, and simplifies wiring complexity.
Common Faults and Solutions
  • No Response to Input Signal

  • Possible causes: Input voltage out of range, poor cable contact, or channel not enabled.

  • Solutions:

    • Confirm input voltage meets parameter requirements (matching dry/wet contact modes).

    • Check if terminal blocks are tightened, replace with shielded cables, and ensure good grounding.

    • Enable corresponding channels and configure input modes via NI MAX software.

  • False Signal Triggering (Incorrect Logic 1/0 Judgment)

  • Possible causes: Electromagnetic interference, too short input filtering time.

  • Solutions:

    • Increase grounding of cable shielding layers and keep away from strong electromagnetic sources (e.g., frequency converters, motors).

    • Increase input filtering time in NI MAX (e.g., adjust from 1ms to 10ms) to reduce signal jitter.

  • Abnormal Module Indicator Lights (e.g., Power Light Off)

  • Possible causes: CFP chassis power failure, module hardware damage.

  • Solutions:

    • Check if the chassis power supply (24V DC) is stable and restart the module.

    • If the fault persists, contact NI after-sales for hardware inspection or module replacement.

Summary
As a high-reliability digital input module, NI CFP-DI-304, with 16 isolated channels, wide voltage compatibility, and high-speed sampling capability, is suitable for switch signal acquisition and status monitoring in industrial fields. In practical applications, pay attention to input mode configuration, anti-interference design, and collaboration with other CFP modules to ensure stable system operation.
Product Tags: CFP-DI-304 , CFP-AI-111

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Guizhou Yuanmiao Automation Equipment Co., Ltd.
1Yr
Business Type
Trading Company
Year Established
2014
Factory Size
1,000-3,000 square meters
Product Certifications
SA8000
Contact Supplier Request Quote Chat Now

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