SCHNEIDER Electric Modicon Quantum PLC Module 140DAI74000 discrete input module

The Quantum PLC module uses modern large-scale integrated circuit technology, manufactured through strict production processes. The internal circuit incorporates advanced anti-interference technology, resulting in exceptionally high reliability.

The Quantum PLC includes hardware fault self-detection functionality, enabling it to promptly alert users when failures occur. Additionally, you can program peripheral component fault self-diagnosis routines in Concept, providing fault self-diagnosis protection for the entire system beyond just the PLC circuit and equipment.

All modules support hot-swapping without requiring system shutdown, reducing maintenance workload. LED status indicators provide visual feedback on CPU and I/O template channel status, greatly facilitating quick maintenance.

The Quantum PLC offers complete supporting facilities with comprehensive functions and strong applicability. Critical systems such as river water intake and condensate fine treatment employ dual-machine hot backup, redundant power supplies, redundant remote I/O, plus dual Ethernet to ensure safe, continuous operation.

The advanced two-machine hot-standby system features simple configuration and convenient operation. Through two identically configured module sets forming primary and secondary units, the host CPU normally handles program operations and I/O communication while updating the standby CPU's status and data via the hot standby module. The standby machine monitors the host's running status and immediately takes over (within one PLC scan cycle) if the host fails, ensuring uninterrupted logic operations.

Applications: CNC machinery, metallurgy, oil & gas, petrochemicals, chemicals, paper printing, textile printing/dyeing, machinery, electronics manufacturing, automotive manufacturing, tobacco, plastics machinery, power generation, water treatment/environmental protection, municipal engineering, boiler heating, energy, and transmission/distribution industries.