Description
1. Detailed parameter table
Parameter name | Parameter value |
Product model | CP461-50 |
Manufacturer | YOKOGAWA |
Product category | High-Performance Large-Scale Programmable Logic Controller |
Processing Speed | 0.03μs per basic instruction |
Program Memory | 16MB (expandable up to 64MB) |
I/O Points | 2048 standard I/O points (expandable up to 65536 points) |
Communication Interfaces | 10 Gigabit Ethernet, RS-232C, RS-485, USB 3.1, Optical Fiber |
Supported Protocols | Modbus RTU/TCP, Ethernet/IP, Profibus DP, OPC UA, MQTT, DNP3, IEC 61850 |
Operating Temperature Range | -10°C to 75°C |
Power Supply | 100-240V AC/DC, 50/60Hz (dual redundant power input with hot-swap capability) |
Dimensions | 200mm (W) x 180mm (H) x 250mm (D) |
Weight | Approximately 3.2kg |
Certification | IEC 61131-2, UL 508, CE, ATEX Zone 1, IEC 61508 SIL 2 |
YOKOGAWA CP461-50
2. Product introduction
The YOKOGAWA CP461-50 is a high-performance large-scale programmable logic controller designed to meet the demands of ultra-large and mission-critical industrial automation systems. Building on the strengths of the CP451 series, it delivers unprecedented processing speed, massive scalability, and enterprise-grade connectivity, making it the ideal choice for integrated automation environments where high reliability and real-time performance are non-negotiable.
This controller achieves a processing speed of 0.03μs per basic instruction, more than twice as fast as the CP451-10, enabling it to handle complex control logic, real-time data analytics, and simultaneous management of thousands of devices. With 16MB of program memory (expandable to 64MB), it can store extensive control programs, historical data, and advanced algorithms. The CP461-50 supports a comprehensive range of industrial and utility protocols, including 10 Gigabit Ethernet for ultra-high-speed data transmission, facilitating seamless integration with cloud platforms, enterprise systems, and smart grids. Perfect for industries such as large-scale petrochemical complexes, power generation plants, and multinational manufacturing hubs, the YOKOGAWA CP461-50 provides a robust and future-proof control solution to drive efficiency, safety, and productivity in the most demanding industrial operations.
3. Core advantages and technical highlights
Extreme processing power:
With a processing speed of 0.03μs per basic instruction, the CP461-50 outperforms the CP451-10 by a significant margin, enabling it to execute complex control algorithms and process millions of sensor inputs in real time. In a large petrochemical plant, this allows the PLC to monitor and adjust hundreds of valves, pumps, and reactors simultaneously, ensuring precise control of chemical reactions and preventing hazardous conditions. The ultra-fast processing also supports advanced features like predictive analytics, where the PLC can analyze real-time data to predict equipment failures before they occur, minimizing unplanned downtime.
Unmatched scalability:
The CP461-50 supports up to 65536 I/O points, four times the maximum capacity of the CP451-10, making it suitable for the largest industrial automation systems. In a multi-plant manufacturing campus, this means a single controller can manage multiple production facilities, including interconnected production lines, warehouses, and logistics systems. The expandable memory (up to 64MB) allows for storing vast amounts of historical data, which can be used for long-term process optimization and compliance reporting. As the campus expands, additional I/O modules and communication interfaces can be added without disrupting operations, providing a cost-effective and flexible growth path.
10 Gigabit Ethernet and advanced connectivity:
Equipped with 10 Gigabit Ethernet and optical fiber interfaces, the CP461-50 enables ultra-high-speed data transfer between the PLC and other components of the automation system, such as SCADA systems, cloud platforms, and remote monitoring stations. In a smart grid control center, this high-speed communication allows the PLC to exchange real-time data with thousands of smart meters and grid devices, enabling rapid load balancing and fault detection. The support for IEC 61850 protocol makes it easy to integrate with power system protection devices, ensuring reliable operation of critical power infrastructure. The MQTT protocol support also facilitates seamless connection to IoT platforms, enabling remote monitoring and control of the system from anywhere in the world.
Enhanced reliability and fault tolerance:
The CP461-50 features a fully redundant architecture, including dual processors, redundant power supplies with hot-swap capability, and redundant communication interfaces. This ensures that the PLC can continue operating even if a critical component fails, making it suitable for mission-critical applications such as nuclear power plants and large-scale water treatment facilities. The operating temperature range of -10°C to 75°C, wider than that of the CP451-10, allows the PLC to function reliably in extreme environments, from freezing cold to high-temperature industrial zones. The enhanced vibration and shock resistance (20g peak, 10-2000Hz) further ensure durability in harsh conditions.
YOKOGAWA CP461-50
4. Typical application scenarios
In a large nuclear power plant, the CP461-50 controls and monitors all critical systems, including reactor cooling, steam generation, and electricity distribution. Its redundant architecture ensures uninterrupted operation, even in the event of a component failure, which is crucial for nuclear safety. The PLC’s high processing speed allows it to analyze data from thousands of sensors in real time, detecting anomalies and triggering safety protocols immediately. Through 10 Gigabit Ethernet, it communicates with the plant’s safety systems and remote monitoring centers, providing real-time data to operators and ensuring compliance with strict regulatory requirements.
In a multi-plant automotive manufacturing campus, the CP461-50 manages all aspects of production, from stamping and welding to assembly and quality control. It coordinates the operation of hundreds of robots, conveyor systems, and inspection machines across multiple plants, ensuring seamless production flow and consistent product quality. The PLC’s advanced connectivity features allow it to integrate with the campus’s ERP and MES systems, providing real-time production data for inventory management, scheduling, and cost control. The scalability of the CP461-50 makes it easy to add new production lines or plants as the business grows, ensuring long-term investment protection.
In a large-scale water treatment and distribution network serving a major city, the CP461-50 controls multiple treatment plants, pumping stations, and distribution pipelines. It monitors water quality parameters, flow rates, and pressure levels across the entire network, adjusting operations to ensure a reliable supply of clean water. The PLC’s high-speed communication capabilities allow it to send data to a central control center, where operators can monitor the network and respond to emergencies quickly. The redundant design ensures that the system remains operational even during power outages or equipment failures, protecting public health and safety.
5. Related model recommendations
- CP451-10: A mid-range alternative with lower processing speed and scalability, suitable for large but not ultra-large automation systems where the full capabilities of the CP461-50are not required.
- CP461-60: A top-of-the-line variant with a processing speed of 0.02μs per basic instruction and support for up to 131072 I/O points, ideal for the largest and most complex industrial automation systems.
- F3PU50-0N: A high-end HMI panel designed to pair with the CP461-50, featuring a large 24-inch touchscreen display, multi-user access, and advanced data visualization tools for monitoring and controlling large-scale automation systems.
- AVR30D-Q32020: A high-power servo drive that integrates seamlessly with the CP461-50for precision motion control applications in large-scale manufacturing systems, such as heavy-duty robotic arms and high-speed conveyors.
- AIP840-111: A high-density analog input module that expands the CP461-50‘s input capabilities, allowing it to monitor thousands of analog signals from sensors in large industrial processes.
- CP461-50-R: A ruggedized version of the CP461-50with enhanced environmental resistance, including protection against dust, moisture, and extreme temperatures, designed for use in harsh outdoor or industrial environments.
6. Installation, commissioning and maintenance instructions
Installation preparation
Before installing the CP461-50, ensure the mounting location has adequate ventilation with a minimum clearance of 300mm around the PLC. The ambient temperature should be within -10°C to 75°C, and the area should be protected from dust, moisture, corrosive gases, and excessive vibration. Prepare tools such as a torque screwdriver (2.0-3.0Nm), wire strippers, and a 10 Gigabit Ethernet cable tester.
Verify that the power supply meets the 100-240V AC/DC specification and install redundant 10A circuit breakers for overcurrent protection. Use shielded twisted-pair cables for all communication interfaces, with optical fiber cables for 10 Gigabit Ethernet connections, to minimize electromagnetic interference. When mounting the PLC in a control cabinet, ensure it is securely fastened to a heavy-duty DIN rail or mounting plate to withstand vibration and shock. For redundant configurations, follow the manufacturer’s guidelines for proper wiring and synchronization of redundant components.
Maintenance suggestions
Perform bi-weekly visual inspections of the CP461-50 and its associated modules, checking for loose connections, dust accumulation, or signs of overheating. Clean the ventilation slots and heat sinks using compressed air monthly to maintain proper cooling, especially in dusty environments. Backup the program and configuration data daily, storing backups in multiple secure locations to prevent data loss in case of a major failure.
Monitor the PLC’s status indicators and diagnostic data in real time using YOKOGAWA’s advanced monitoring software, which can detect potential issues before they cause downtime. Perform comprehensive diagnostic tests quarterly, including communication tests, memory checks, and I/O module verification. If a fault occurs, use the PLC’s built-in fault-tolerant features to switch to redundant components while troubleshooting the issue.
Replace the lithium backup battery every 3 years to ensure program retention during power outages. When replacing the CP461-50 or its modules, use only YOKOGAWA-approved replacement parts and follow the proper procedures for hot-swap operations to minimize downtime. Document all maintenance activities, including tests, repairs, and replacements, to maintain compliance with industry standards and facilitate future troubleshooting.
7. Service and guarantee commitment
YOKOGAWA provides a 6-year warranty for the CP461-50, reflecting confidence in its exceptional quality and reliability. Each unit undergoes rigorous testing, including extended temperature cycling, high-vibration testing, and full redundancy verification, to ensure compliance with the most stringent international standards.
Our global technical support team includes specialists in large-scale automation systems, offering 24/7 assistance for programming, troubleshooting, and system optimization. On-site service is available in major industrial regions with a response time of 12 hours for critical issues, ensuring minimal downtime in case of problems. YOKOGAWA provides specialized training programs on the CP461-50‘s advanced features and programming, helping customers maximize the performance of their large-scale automation systems. We also offer custom engineering services, including system design, commissioning, and optimization, to ensure the PLC is perfectly tailored to the customer’s specific application. Extended warranty options and comprehensive preventive maintenance packages are available to ensure long-term reliability and peace of mind for our customers.
Full 12-month warranty on all components
Dedicated after-sales support
Same-day dispatch on 1000s of parts
All units are fully tested
- 1. Email confirmation
You will get an email confirming that we have received your enquiry. - 2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition. - 3. Your quote
You will receive a comprehensive quote tailored to your specific needs.