PLCs, Power Supplies & Others

Redundancy Solution for Critical Processes

The Schneider 140CHS21000 delivers a complete Hot Standby kit for Modicon Quantum automation platforms. This kit includes two power supply modules and a redundant backplane for system duplication . It enables seamless switchover between primary and secondary controllers during faults . Consequently, this kit ensures continuous operation for mission-critical processes like chemical plants and power generation.

Components and System Architecture

The 140CHS21000 kit contains two 24 V DC power supplies for independent controller operation. A dedicated fiber-optic cable synchronizes data between the primary and standby CPUs . The redundant backplane supports dual I/O scanning for consistent process image updates . Furthermore, automatic transfer logic manages switchover without manual intervention or programming changes .

Monitoring and Diagnostics

Built-in health monitoring tracks each controller’s status and communication integrity continuously . The Schneider 140CHS21000 provides LED indicators for primary, standby, and fault conditions . Diagnostic counters record transfer events for predictive maintenance planning . As a result, operators gain full visibility into system redundancy health at all times .

Physical and Installation Specifications

The complete kit weighs approximately 0.9 kilograms including all components . Each power supply module measures standard Quantum single-slot dimensions for rack mounting . The 140CHS21000 requires minimal cabinet space due to its compact design . Installation follows standard Quantum rack procedures using existing backplane connectors .

Technical Specifications

Details