Schneider Electric Modicon AS-S911-801 Hot Standby Processor Module

Schneider Electric Modicon AS-S911-801 is a hot standby processor module designed for high-reliability PLC systems within the Modicon automation platform. It is widely used in critical industrial sectors such as power generation, petrochemical processing, and continuous manufacturing, where system redundancy and uninterrupted operation are essential. The AS-S911-801 enables seamless switchover between primary and backup CPUs, ensuring maximum uptime and operational safety.

Core Procurement Information

• Brand: Schneider Electric (Modicon)
• Model: AS-S911-801
• Availability: In Stock / Subject to Supplier Inventory
• Delivery Time: 3–10 working days after payment
• Guarantee: 12 Months Warranty
• Condition: New / Used (Refurbished, Fully Tested)
• Product Type: Hot Standby Processor Module
• Function: Redundant CPU backup for PLC systems
• Compatibility: Modicon PLC (984 / 800 Series I/O systems)
• Processing Capability: Supports multitasking and high-speed instruction execution
• Communication: Integrated communication ports (Modbus / Ethernet / CANopen depending on configuration)
• Operating Temperature: 0°C to 55°C
• Dimensions: Approx. 20.3 × 7.6 × 27.9 cm
• Weight: Approx. 1.3 kg
• 

Industry Applications

• Power & Utilities: Ensures uninterrupted turbine and grid control systems
• Oil & Gas / Petrochemical: Provides redundancy for safety-critical processes
• Continuous Manufacturing: Minimizes downtime in 24/7 production lines
• Process Control Systems: Enhances reliability in complex DCS/PLC architectures

The AS-S911-801 is an essential redundancy solution for legacy and modern Modicon PLC systems, delivering seamless failover, improved system availability, and robust performance in mission-critical industrial environments.

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