Yokogawa CP701-S1 Field Control CPU

The Yokogawa CP701-S1 is a Field Control CPU Module designed for the CENTUM CS 1000 distributed control system, ideal for small- to medium-scale industrial plants. Engineered for high reliability, compactness, and easy maintenance, the CP701-S1 ensures seamless integration with the CENTUM CS architecture while offering globally standardized compliance for critical process control systems.

It incorporates a high-speed R4300 microprocessor with embedded caches and DRAM for optimal performance. The CPU communicates with I/O modules through internal buses, ensuring efficient data flow and real-time control. Equipped with flash memory for the boot program and ECC memory for enhanced reliability, the CP701-S1 also features redundancy support through a synchronous hot standby system, safeguarding uninterrupted operation.

Technical Specifications

Applications

• Process Industries: Oil & gas, petrochemical, pharmaceutical, food and beverage, and power generation.

• Batch and Continuous Processing: For precise control and synchronization of processes.

• Utility Systems: Monitoring and controlling steam, water, and gas systems in plants.

• Manufacturing Automation: Discrete control and integration with MES/ERP layers.

• Redundant System Requirements: Ideal for applications requiring zero-downtime failover capabilities.

Product Advantages

1. Seamless CENTUM CS Compatibility

   Shares architecture with the high-end CENTUM CS system, allowing for scalable and unified control architecture across all plant sizes.

2. High-Speed Processing

   Incorporates R4300 processor and ECC DRAM to ensure fast, reliable data processing under demanding conditions.

3. Enhanced Redundancy

   Hot standby dual-CPU support ensures uninterrupted operation during component failure.

4. Compact and Fanless Design

   Space-saving footprint and no moving parts enhance reliability and reduce maintenance costs.

5. Global Standards Compliance

   Meets key international safety and EMC standards, ensuring acceptance across global markets.

6. Easy Maintenance and Hot-Swappability

   All modules except the backboard are front-accessible and hot-swappable, simplifying replacements and minimizing downtime.

7. Eco-Conscious Design

   Materials and power consumption optimized for reduced environmental impact with up to 35% lower CO₂ emissions over the lifecycle.

Frequently Asked Questions (FAQ)

Q1: What is the primary function of the CP701-S1?

A1: The CP701-S1 serves as the central processing unit for the CENTUM CS 1000 Field Control Station, managing control logic, communication, and I/O module coordination.

Q2: What makes the CP701-S1 suitable for critical applications?

A2: Its high reliability, ECC memory, and support for hot standby redundancy make it ideal for applications where failure is not an option.

Q3: Can the CP701-S1 be used in systems with different power supplies?

A3: Yes, it supports 100–120 V AC, 220–240 V AC, and 24 V DC input through different models.

Q4: Is the module compatible with older CENTUM CS systems?

A4: Yes, it is fully compatible with CENTUM CS architecture, making it ideal for system upgrades or expansions.

Q5: Does it support remote I/O modules?

A5: The CP701-S1 interfaces with I/O module nests via internal buses and does not use a separate remote I/O bus, reducing complexity.

Q6: What kind of memory is used in the CP701-S1?

A6: It uses DRAM with ECC for main memory and flash memory for boot programs, ensuring data integrity and upgradability.

Q7: Is cooling required for this CPU module?

A7: No, it is designed to operate without cooling fans, which reduces maintenance needs and increases system reliability.

Q8: How does redundancy work in the CP701-S1?

A8: Two CPUs run synchronously in hot standby mode. The backup CPU takes over seamlessly in case of failure.

Q9: Can I upgrade from CP701 to CP703 easily?

A9: Yes, both are form-factor compatible, and upgrading is mainly dependent on memory needs and software support.

Q10: What certifications does the CP701-S1 have?

A10: It complies with EN55011, EN50082-2, EN61010-1, CSA-C22.2, EN61000-3-2, EN61000-4-5, and EN61000-4-11 standards.