1. Overview

2. Key Technical Parameters

3. Core Product Features

Hot Standby Redundancy Function (HSP)

• The core function is to monitor the status of the master processor (such as CPU usage, memory status, network communication status).
• When the master processor fails (such as hardware damage, system hang), the hot standby processor will automatically take over the control task, realizing seamless system switching and avoiding production interruption.
• Application Scenarios: Chemical, petroleum, electric power and other industries where shutdown consequences are serious.

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High Reliability

• Adopts redundant architecture design and has passed strict industrial-grade testing.
• Supports multiple network protocols, facilitating integration with different field bus systems.

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Easy Programming and Monitoring

• Configuration and monitoring are performed through Schneider’s SoMachine (Unity Pro) software.
• Supports multiple programming languages such as Structured Text, Ladder Diagram, and Function Block Diagram, facilitating debugging by maintenance personnel.

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4. Structure and Composition

• CPU Motherboard: Contains the core processor and memory.
• Communication Interface Card: Configure Ethernet, Serial, CAN and other interfaces as needed for communication with the master processor or on-site equipment.
• Hot Standby Protocol Circuit: Used to exchange status information (Heartbeat) with the master processor in real time.

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5. Typical Application Fields

• Petrochemical Industry: Control of key oil refining and chemical equipment.
• Power System: Power plant control systems, substation automation.
• Large-scale Building Automation: Power supply and refrigeration systems for important computer rooms, data centers, and hospitals.
• Iron and Steel & Metal Processing: High-risk processes such as blast furnaces and continuous casting.
• Rail Transit: Train signal systems and locomotive control.

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6. Installation and Maintenance Recommendations

Installation

• Use it in pairs with the master processor and ensure it is installed on the same rack.
• Connect the power cord and communication cable to ensure the connectivity of the Hot Standby Protocol.
• Pay attention to anti-static operations when plugging and unplugging modules.

Maintenance

• Regularly check the status lights of the hot standby processor (usually red and green lights indicate the working status).
• Use SoMachine software to monitor the hot standby switching log to ensure the standby machine is in standby state.
• It is recommended to conduct a hot standby switching test every year to verify whether the standby machine can take over successfully.