Product Overview

The Yokogawa F3SP38-6N is a high-performance Sequence CPU Module for the FA-M3 PLC platform. Designed for advanced industrial automation, it serves as the central processing unit that executes control programs, manages I/O operations, performs data processing, and coordinates communication between PLC modules.

With a 120K-step program memory, high-speed processing capability, and support for large-scale automation systems, the F3SP38-6N is well suited for complex manufacturing, process control, and machine automation applications.

Technical Specifications

Function and Working Principle

The F3SP38-6N functions as the processing core of the FA-M3 PLC system by continuously executing the PLC scan cycle. It reads field input signals, processes user-defined ladder programs, updates internal memory, and controls output devices with deterministic timing.

Its large memory capacity enables the execution of complex automation programs while maintaining high-speed and stable system performance.

Operating Sequence

1. Read digital and analog input signals.
2. Execute the stored ladder program.
3. Perform logical, arithmetic, timer, and counter operations.
4. Update internal memory and system registers.
5. Refresh output modules.
6. Repeat the scan cycle continuously.

$Input\to CPUProcessing\to ProgramExecution\to Output$

Key Features

• High-performance sequence CPU
• Large 120K-step program capacity
• Supports up to 4,096 I/O points
• High-speed cyclic program execution
• Built-in self-diagnostic and fault monitoring
• Dedicated programming interface
• Front-panel LED status indicators
• Compatible with FA-M3 modular architecture
• Reliable continuous industrial operation

System Role

The F3SP38-6N serves as the central controller of the FA-M3 automation system, coordinating all system operations and communication between connected modules.

Typical Control Architecture

Sensors → Input Modules → F3SP38-6N CPU → Output Modules → Motors, Valves, Actuators

The CPU processes real-time control logic while ensuring synchronized operation across the entire PLC system.

Industrial Applications

The F3SP38-6N is suitable for demanding industrial applications, including:

• Manufacturing automation
• Automotive production lines
• Semiconductor manufacturing
• Packaging machinery
• Robotics and motion control
• Material handling systems
• Process automation
• Water and wastewater treatment
• Energy management systems
• General factory automation

Installation Guidelines

• Install the module in a compatible FA-M3 base unit.
• Disconnect system power before installation or replacement.
• Ensure compatibility with FA-M3 power supply and expansion modules.
• Secure the module firmly into the backplane connector.
• Maintain adequate ventilation inside the control cabinet.
• Use proper grounding practices to reduce electrical interference.
• Verify system operation after installation using built-in diagnostic indicators.

Compatible Components

The F3SP38-6N is compatible with:

• FA-M3 Base Units
• FA-M3 Power Supply Modules
• Digital Input Modules
• Digital Output Modules
• Analog Input Modules
• Analog Output Modules
• Ethernet Communication Modules
• Serial Communication Modules
• Positioning Modules
• Motion Control Modules
• Remote I/O Modules
• Special Function Modules

Alternative Models

Advantages

• Large 120K-step memory capacity
• High-speed sequence processing
• Excellent real-time performance
• Supports large-scale automation systems
• Comprehensive diagnostic functions
• Flexible modular expansion
• Compact and lightweight design
• High reliability for continuous industrial applications

Frequently Asked Questions

What is the primary function of the F3SP38-6N?

It serves as the main CPU of the FA-M3 PLC system, executing automation programs and controlling system operations.

What is the program capacity of this CPU?

The module provides 120K steps of program memory for complex automation applications.

How many I/O points can it support?

It supports up to 4,096 I/O points when configured within an FA-M3 PLC system.

Does the module include diagnostic functions?

Yes. It features built-in self-diagnostics with RDY, RUN, ALM, and ERR LED indicators for system status and fault monitoring.

What applications is the F3SP38-6N suitable for?

It is widely used in manufacturing, robotics, packaging, semiconductor production, process control, energy management, and other industrial automation applications.

Conclusion

The Yokogawa F3SP38-6N CPU Module is a high-performance controller designed for demanding FA-M3 automation systems. With its 120K-step program capacity, support for up to 4,096 I/O points, comprehensive diagnostic capabilities, and reliable high-speed processing, it provides an ideal solution for complex industrial control applications.