NI FP-DO-400 8-Channel Sourcing Digital Output Module

The NI FP-DO-400 is an 8-channel sourcing digital output module designed for distributed control in industrial automation systems. It provides direct load switching across a 5 VDC to 30 VDC range with per-channel current delivery up to 1.5 A and total module capacity of 8 A. The module integrates optical isolation from the FieldPoint bank, 2,300 Vrms transient overvoltage protection, and individual LED indicators for real-time channel status monitoring. Its 20 µs ON-state and 50 µs OFF-state response times support 20 kHz update rates, making it suitable for time-critical switching applications. Hot-swappable design enables field replacement without system shutdown. Operating across –40 °C to 70 °C, the module delivers consistent performance in demanding industrial environments.

– Technical Specifications

• 8 sourcing digital output channels
• Output voltage range: 5 VDC to 30 VDC
• Output current: up to 1.5 A per channel; 8 A maximum module total
• Output impedance: 0.3 Ohms
• Output delay: 20 µs (ON), 50 µs (OFF)
• Update rate: 20 kHz
• Channel isolation: Optically isolated from FieldPoint bank
• Breakdown isolation: 2,300 Vrms
• Individual LED indicators per channel; POWER and READY status LEDs

– Key Features

• Hot-swappable module architecture
• Onboard diagnostics for enhanced maintainability
• Operating temperature range: –40 °C to 70 °C
• Storage temperature: –55 °C to 85 °C (cFP variant)
• Vibration rated to 5 grms random and 5 g sinusoidal (10–500 Hz)
• Compact form factor: 4.2 × 4.3 × 3.6 in., 4.8 oz

– Typical Applications

• Indicator light control
• External relay switching
• CMOS and TTL device interface
• Industrial automation and process control

– Compatibility & Integration

Mounts directly on FieldPoint terminal base (FP-TB-x) or Compact FieldPoint backplane (cFP-BP-x). Integrates within National Instruments FieldPoint distributed I/O systems for centralized or decentralized control architectures.