Fuji NP4H-SEDBV3 SX-Programmer

The Fuji NP4H-SEDBV3 serves as a dedicated handheld programming tool. This device connects directly to Fuji SX series PLCs. It allows on‑site program editing without a laptop computer. Maintenance engineers find this unit invaluable for quick troubleshooting.

Complete Technical Specifications

Parameter	Specification
Dimensions (W x H x D)	210 mm x 110 mm x 35 mm
Weight	0.45 kg
Display Type	LCD, 4 lines x 20 characters
Display Backlight	LED, green
Keypad Buttons	32 tactile keys
Program Memory	64 KB internal flash
Internal Energy Storage	500 µF capacitor + CR2032 battery
Communication Interface	RS-422 (8-pin mini DIN)
Cable Length	2.5 meters (detachable)
Operating Voltage	5V DC from PLC (via cable)
Power Consumption	1.2 W

Physical Layout and User Interface

The Fuji NP4H-SEDBV3 weighs 0.45 kilograms for comfortable handheld use. Its 210 mm length allows easy one‑handed operation. A 4‑line green backlit LCD shows program steps clearly. Thirty‑two tactile buttons provide responsive keypress feedback. The device includes a detachable 2.5‑meter communication cable. A CR2032 battery preserves user settings and screen preferences. Additionally, a 500 µF capacitor prevents data loss during cable disconnection.

Programming Functions and Capabilities

This programmer reads and writes ladder logic programs directly. It supports online monitoring of I/O and register values. Users can search for specific contacts or coils quickly. The tool also forces outputs on or off for testing. Therefore, you can diagnose field wiring without a PC. The 64 KB memory stores multiple program backups. Consequently, you can carry several machine programs in one device.

Connection and Operation Guidelines

Connect the Fuji NP4H-SEDBV3 to the PLC programming port first. Then power up the SX series PLC as usual. The programmer draws its operating voltage from the PLC. Wait for the LCD backlight to illuminate fully. After that, navigate using the arrow and function keys. Always save your changes before disconnecting the cable. Keep the unit in its protective case when not in use.

Compatibility and Application Notes

This programmer works with all Fuji SX series PLC models. It does not support SPH or MICREX‑F series controllers. Typical applications include field debugging and quick parameter adjustments. The tool also suits emergency program recovery scenarios. For complex edits, use the Windows‑based software instead.