RO4CPU

Overview of Mitsubishi RO4CPU

The Mitsubishi RO4CPU is a high-performance programmable logic controller (PLC) CPU unit within the MELSEC iQ-R series, designed for advanced automation control tasks. It features a rich set of embedded functions including Ethernet and USB communication ports, large program and data memory, and flexible programming capabilities supporting ladder diagrams, structured text, function block diagrams, and sequential function charts.

Key Features

• Operation Control Method: I/O control mode
• Instruction Processing Time: LD instruction: 0.98 ns, MOV/IF/CASE/FOR: 1.96 ns
• Program Memory: 40K steps (160K bytes)
• Data Memory: 5M bytes, expandable with SD memory cards up to 32 GB
• Communication Ports: USB 2.0 High Speed (Mini-B) ×1, Ethernet 10BASE-T/100BASE-TX ×1
• Clock Function: Real-time clock with automatic leap year adjustment
• Backup Power: Capacitor backup for approx. 3 minutes
• Internal Current Consumption (5 V DC): 0.67 A
• Dimensions: Height: 106 mm, Width: 27.8 mm, Depth: 110 mm
• Weight: Approx. 0.20 kg
• Programming Languages Supported: Ladder diagram (LD), Structured text (ST), Function block diagram (FBD/LD), Sequential function chart (SFC)
• Interrupt Types: Supports multiple interrupt types including CPU synchronous, module synchronous, high-speed timer interrupts
• File Handling: Supports up to 124 program files and 64 function block files
• Max I/O Points: Up to 4096 points; extensive user device points for relays, timers, counters, data registers, and pointers

Technical Specifications

Applications / Use Cases

The RO4CPU is ideal for complex and large-scale control systems requiring high-speed processing, extensive memory, and versatile communication. Suitable for industries such as automotive manufacturing, food processing, and general factory automation requiring robust, scalable, and flexible control solutions.