The National Instruments FP-DI-300 is an 8-channel digital input module for FieldPoint distributed I/O systems. It acquires state information from industrial sensors and discrete devices operating at 24 VDC logic levels. The module accepts sinking inputs compatible with 24 VDC sourcing outputs across an input signal range of 18 to 30 VDC, with maximum input voltage rated to 250 V. Each channel incorporates current-limiting circuitry and -30 VDC reverse voltage protection.
Technical Specifications
• Channels: 8 digital input (sinking)
• Input Signal Range: 18 to 30 VDC
• Maximum Input Voltage: 250 V
• Input Impedance: 5 kΩ
• Update Rate: 1 kHz (all channels)
• Channel-to-Ground Isolation: 250 Vrms CAT II continuous, verified by 2,300 Vrms dielectric withstand at 5 s
• Reverse Voltage Protection: -30 VDC
• Power Consumption: 225 mW (from network module)
• External Supply Voltage: 15–30 VDC
• Operating Temperature: -40 to 70 °C
• Weight: 4.93 oz
– Key Features
• Hot-swappable module with HotPnP automatic detection and configuration
• Module-to-module isolation built-in
• Green status LEDs: power, ready, and per-channel ON indicators
• Compliant with IEC 61010-1, EN 61010-1, UL 61010-1, CAN/CSA-22.2 No. 61010-1
• EEx nC IIC T4 certification (DEMKO Certificate No. 03 ATEX 0251502X) for Zone 2 hazardous locations
– Typical Applications
Proximity and limit switches, pushbutton switches, thermostat outputs, relay closures, power circuits, and TTL devices.
– Compatibility & Integration
Mounts on FieldPoint terminal bases (FP-TB-x) or Compact FieldPoint backplanes (cFP-BP-x or cFP-180x). Designed for distributed I/O systems and Compact FieldPoint systems.
