Yokogawa F3XH04-3N Digital Input Module

Yokogawa F3XH04-3N Digital Input Module

The Yokogawa F3XH04-3N, also cataloged as the F3XH04-3N digital input module, serves as a 4-point DC input card engineered for high-speed pulse capture and interrupt-driven control logic within FA-M3 PLC systems.

Hardware Specifications

I/O Density Scaling

The F3XH04-3N leverages independent commons across all four input points, allowing flexible wiring and high-density integration. Its pulse-capture mechanism ensures detection of signals shorter than the PLC CPU scan period, while interrupt-driven processing provides deterministic execution in high-speed automation networks. This architecture aligns with I/O density scaling principles, enabling compact yet responsive input acquisition.

Frequently Asked Questions

Q: Can the module detect pulses shorter than the PLC scan cycle? A: Yes, the dedicated pulse-capture mechanism allows reliable detection of pulses down to 50 µs.

Q: How is isolation achieved between channels? A: Each input point uses photocoupler isolation, preventing electrical noise propagation.

Q: Is interrupt processing supported? A: Yes, the module includes an interrupt mechanism for instantaneous control logic execution.

Field Installation Guidelines

• Connect input wiring to the 10-point terminal block using M3.5 screws; ensure torque compliance.
• Maintain separation between DC input wiring and high-voltage conductors to reduce interference.
• Validate pulse-capture function during commissioning with test signals shorter than CPU scan time.
• Ensure grounding continuity for shielding layers to minimize EMI.
• Operate within 0 to +55 deg C ambient conditions for stable performance.