FUJI NJ-CPU-E4 | MICREX-F CPU Module 64KB

The FUJI NJ-CPU-E4 serves as the central processing unit for your PLC. This CPU module belongs to the MICREX-F controller family. It executes user programs and manages all I/O operations. You can use it for medium to large automation applications.

Key Technical Specifications

Below you will find the accurate technical parameters for the FUJI NJ-CPU-E4.

Parameter	Specification
Product Type	CPU Module
Series	MICREX-F
Program Memory	64 KB (RAM with battery backup)
Execution Speed	0.5 µs per basic instruction
Digital I/O Capacity	Up to 2048 points
Analog I/O Capacity	Up to 256 channels
Built-in Interfaces	RS-232C (programming port)
Backup Battery	Lithium (3.6V)
Manufacturer	FUJI Electric

The module measures 210 mm in width and 85 mm in height. Its total depth reaches 70 mm. The FUJI NJ-CPU-E4 weighs approximately 520 grams. This unit contains a main CPU board with processor, memory chips, and battery holder. Energy storage uses the lithium battery for RAM retention during power loss.

You will find a 9-pin D-sub connector on the front panel. This port connects to a programming device or HMI. Consequently, you can upload programs and monitor system status easily. LED indicators show run, stop, error, and battery conditions clearly.

Installation and System Integration

You can mount the FUJI NJ-CPU-E4 directly into a MICREX-F rack. The module draws power from the backplane bus. Therefore, you do not need a separate supply for the CPU. The processor scans inputs, executes logic, and updates outputs continuously.