The Schneider Electric Modicon Quantum 140CPU67861 (Primary) and 140CPU67261 (Standby) processors are the cornerstone of a robust, fault-tolerant automation system designed for industries where downtime is not an option. This matched pair operates in a dedicated Hot Standby configuration, continuously mirroring the entire application program, I/O data, and system state between the two units.

Key Features & Benefits:

• Seamless Automatic Failover: In case of a fault in the primary CPU (140CPU67861), the standby CPU (140CPU67261) automatically assumes control within milliseconds, preventing any disruption to the controlled process. This transition is transparent to the operation.

• Zero Data Loss: Advanced mirroring technology ensures that the standby processor is always up-to-date, guaranteeing continuity of operations and preserving all critical process data during the switchover.

• Enhanced System Diagnostics: Both processors feature comprehensive self-diagnostics and provide detailed status information to engineers, allowing for rapid identification and resolution of issues before they impact the system.

• Full Compatibility: Integrates seamlessly with the entire Modicon Quantum I/O system and is programmed and configured using the universal Schneider Electric Unity Pro software platform, simplifying engineering and maintenance.

• High Performance: These processors deliver the powerful execution speed and large memory capacity required for complex control strategies in demanding applications like energy production, chemical processing, and water treatment.

• Robust Design: Built to withstand the harsh conditions of industrial environments, ensuring long-term reliability.

Typical Applications:
This redundant CPU solution is essential for critical infrastructure and processes where maximum availability is paramount:

• Oil & Gas production and refining

• Chemical and Pharmaceutical manufacturing

• Power Generation and Distribution

• Water and Wastewater Treatment facilities

• Transportation tunnels and safety systems

By deploying the 140CPU67861 and 140CPU67261 Hot Standby system, engineers can design control architectures that achieve the highest levels of availability, reliability, and data integrity, safeguarding both their operations and their investments.