FUJI ELECTRIC NP1PS-32R Programmable Logic Controller CPU Module

The NP1PS-32R is a central processing unit for the FUJI ELECTRIC NP1 series PLC systems. It offers 32K steps of user program memory, enabling complex logic sequences and data handling for medium-scale automation tasks. The module integrates a high-speed 16-bit processor with a basic instruction execution time of 0.3 µs, ensuring responsive control for demanding applications such as packaging machinery, conveyor systems, and process control.

Technical Specifications

• Program Memory: 32K steps (CMOS RAM with lithium battery backup)

• Data Memory: 8K words (retentive and non-retentive areas)

• Processing Speed: 0.3 µs per basic instruction

• Built-in Communication: RS-232C port (for programming and SCADA connection)

• I/O Capacity: Up to 1024 digital I/O points with expansion modules

• Execution Control: Cyclic scan with interrupt priority

Features and Functions

The CPU supports ladder diagram programming with advanced instructions including PID control, mathematical functions (floating point), and data table operations. It includes a real-time clock with calendar for time-based control and event logging. The module also features a user-configurable watchdog timer and built-in self-diagnostics that monitor memory, battery voltage, and bus communication. An LED indicator panel shows RUN, ERROR, and BATTERY status.

Physical and Environmental

Dimensions: 90 mm × 90 mm × 75 mm (H × W × D). Weight: 0.3 kg. Power consumption: 500 mA at 5 VDC from backplane. Operating temperature: 0–55°C; storage: -20–70°C; humidity: 30–85% non-condensing. The module mounts on a standard NP1 rack and is UL, CSA, and CE certified. The battery (CR2032) provides data retention for up to 5 years.

Compatibility and Expansion

The NP1PS-32R is compatible with all NP1 series I/O modules, including digital, analog, temperature, and high-speed counter modules. Up to 8 expansion racks can be connected via the NP1 bus extender. The RS-232C port supports FUJI’s proprietary protocol (MICREX-F) and also Modbus RTU for integration with third-party HMIs and SCADA systems. Programming is performed using FUJI ELECTRIC's D300Win or NP1 Studio software.

Applications

Typical deployments include material handling, food processing, and simple motion control applications. The NP1PS-32R is a cost-effective solution for upgrading legacy Fuji PLC systems or building new control panels. For higher memory requirements, the NP1PS-64R is available.