TRICONEX DI-3506X Digital Input Module

High Reliability: Adopts a Triple Modular Redundancy (TMR) structure. The module contains three independent channels, and through a majority voting mechanism, it ensures normal operation even if a single channel fails, thus guaranteeing high availability of the system.

Flexible Configuration: Supports multiple input types, can be flexibly configured according to different application requirements, and is adaptable to standard DC signals as well as 47.63Hz AC signals, etc.

Powerful Diagnostic Function: Equipped with comprehensive online diagnostic functions, which can monitor the module status in real-time, quickly detect and isolate faults, support on/off status indication, module fault alarm, etc., and automatically trigger safety mechanisms when faults occur.

Hot Standby Support: Supports the hot standby function, allowing maintenance to be carried out without interrupting system operation, facilitating on-site operation and maintenance.

Good Compatibility: Compatible with other modules of the Triconex system, easy to integrate, and can communicate with the main processor through the proprietary high-speed bus system TriBus.

Digital Signal Acquisition: Collects digital signals from on-site equipment, such as status signals of limit switches, buttons, proximity sensors, etc., and converts them into digital quantities recognizable by the system.

Fault Detection: Monitors input signals in real-time. Once abnormal signals or faults of the module itself are detected, it can promptly detect and isolate them to prevent fault propagation from affecting the entire system.

System Integration: Integrates on-site equipment with the control system, transmits the collected on-site signals to the control system to realize automatic control, and serves as an important bridge between on-site equipment and the control system.

On-site Signal Acquisition: Receives digital signals (on/off status) from equipment such as emergency shutdown buttons (ESD), valve limit switches (e.g., fully open/fully closed status of gate valves), pressure switches (overpressure alarms), flame detectors, combustible gas detectors, etc.

Safety Interlock Support: Transmits the collected signals to the Triconex main controller, providing a decision-making basis for the Emergency Shutdown System (ESD) and Fire & Gas Detection System (F&G), ensuring that the system can quickly trigger interlock actions (such as cutting off feed, closing valves) in case of dangers like leaks, overpressure, and fires.

Unit Status Monitoring: Collects signals such as steam turbine overspeed protection switches, boiler water level switches, generator circuit breaker status, emergency shutdown buttons, etc., to monitor in real-time whether the equipment is within the safe operation range.

Adaptability to Redundant Design: Scenarios such as nuclear power and thermal power have nearly "zero fault" requirements for system reliability. Its TMR architecture can maintain normal signal collection even when a single channel fails, avoiding unplanned shutdown of the unit due to signal loss.

Trackside Equipment Monitoring: Collects digital signals such as track circuit status, switch position switches, emergency brake buttons, platform door switch status, etc., providing input for safety logic judgment of the Automatic Train Protection (ATP) system.

Redundancy and Fault Tolerance Requirements: In rail transit scenarios, signal interruption may lead to train shutdown or accidents. The hot-swappable and fault self-diagnostic functions of the module can ensure that system operation is not interrupted during maintenance, meeting the industry's requirements for "high availability".

Equipment Status Monitoring: Collects signals such as sterilizer pressure switches, valve switch status, conveyor emergency stop buttons, clean area access control status, etc., ensuring that the production environment meets standards such as GMP, and avoiding product contamination or personal safety risks caused by equipment abnormalities.

Safety Logic Triggering: When abnormal signals (such as switch signals triggered by excessive sterilization temperature) are detected, it quickly feeds back to the controller, triggering shutdown or alarm to prevent the production of unqualified products.

Key Equipment Signal Acquisition: Receives digital signals such as blast furnace hot blast stove valve limit signals, rolling mill emergency stop switch signals, crane limit switches, cooling water system pressure switches, etc., ensuring the continuity of processes such as smelting and rolling.

Adaptability to Anti-Interference Capability: The module has electromagnetic isolation and anti-interference design, which can work stably in strong electromagnetic and dusty environments, avoiding equipment damage caused by false signals or signal loss.

Process Status Monitoring: Collects digital signals such as sedimentation tank level switches, sludge pump operation status, disinfection equipment start-stop signals, discharge port valve status, etc., ensuring that water treatment links (such as filtration and disinfection) are carried out according to standards.

Safety and Compliance Assurance: When signals such as excessive water quality or equipment failure are detected, it assists the system in triggering shutdown or process switching, avoiding the discharge of unqualified water or equipment overload.