TRICONEX 3723X integrates Triple Modular Redundant (TMR) architecture with flexible output control capabilities, serving as a critical interface between Safety Instrumented Systems (SIS) and field execution devices.
TRICONEX 3723X TMR Digital Output Module Overview The TRICONEX 3723X is a high-reliability supervised/non-supervised digital output module belonging to the TRICONEX 3625 series, engineered exclusively for safety-critical applications in process industries. Manufactured by TRICONEX (now a division of Schneider Electric, formerly Invensys Triconex), this module integrates Triple Modular Redundant (TMR) architecture with flexible output control capabilities, serving as a critical interface between Safety Instrumented Systems (SIS) and field execution devices. It converts digital control signals into stable output signals to drive relays, solenoid valves, pumps, and actuators, ensuring operational integrity in harsh industrial environments. Fully compliant with IEC 61508 SIL 3 safety standards, it is widely deployed in oil and gas, petrochemicals, power generation, and offshore facilities for emergency shutdown (ESD), process interlocking, and critical equipment protection. Technical Specifications Brand & Manufacturer Produced by TRICONEX, a global leader in fault-tolerant safety control systems, now integrated into Schneider Electric. TRICONEX is renowned for its proprietary TMR technology, which eliminates single points of failure through 2-out-of-3 voting logic, accumulating billions of hours of failure-free operation in mission-critical industrial scenarios. Model Number Model: 3723X, part of the TRICONEX 3625 series of digital output modules. The suffix "C1" denotes an upgraded version with enhanced stability, supervised/non-supervised dual-mode support, and improved diagnostic capabilities compared to earlier iterations. It is also referred to as Invensys TRICONEX 3723X in legacy documentation, classified as a TMR-enabled digital output module optimized for TRICON and Trident safety control systems. Physical Specifications Dimensions Adopting a compact industrial modular design consistent with TRICONEX 3600 series standards, the standard dimensions are 120 mm × 80 mm × 40 mm (4.72 in × 3.15 in × 1.57 in). Minor variations (e.g., 220mm×100mm×40mm for ruggedized versions) may exist across configurations, but the aforementioned size is the most common for standard control cabinet integration. Weight Net weight is approximately 0.5 kg (1.10 lbs) without accessories, featuring a lightweight design due to optimized aluminum alloy housing. Transportation weight (including original packaging) is around 1.2 kg, with no heavy-duty variants as the module is tailored for control cabinet installation. Mounting & Housing Designed for rack mounting in TRICON and Trident system chassis, fully compatible with standard Triconex baseplates. The housing is made of industrial-grade aluminum alloy with a dark blue finish, offering an IP20 protection rating for standard versions to prevent dust intrusion. Ruggedized variants for harsh on-site environments are available with an IP67 protection rating for waterproof and dustproof performance. Core Features Triple Modular Redundancy (TMR) Architecture: Employs three independent output circuits with 2-out-of-3 voting logic, ensuring uninterrupted operation even if one circuit fails, meeting SIL 3 safety requirements for critical applications. Dual Output Modes: Supports both supervised and non-supervised digital output modes, allowing flexible configuration to match different field device control needs and safety levels. 32 Isolated Output Channels: Equipped with 32 individually isolated channels (solid-state relay-based) to prevent cross-interference, with channel-to-channel and channel-to-backplane isolation voltage of 1500 VDC for enhanced noise immunity. Robust Load Driving Capability: Each channel supports a maximum continuous current of 1.7-2 A and 24 VDC nominal output voltage, capable of directly driving relays, solenoid valves, and other industrial actuators. Comprehensive Self-Diagnostics: Integrates channel status monitoring, hardware health detection, and fault isolation functions. Abnormal conditions (e.g., output stuck, overload) trigger alarms, with front-panel LEDs indicating individual channel status and module health for quick troubleshooting. Hot-Swappable Design: Supports online replacement without system shutdown, minimizing maintenance downtime and maximizing plant operational availability. High-Speed Backplane Communication: Transmits control signals and diagnostic data via a high-speed backplane bus (2 Mbps) to Tricon main processors, ensuring real-time response for time-critical safety control.
interface *Output method: rear output *Fast Ethernet: 3 slots, each slot supports 8 ports, with optional optical and electrical options *Gigabit Ethernet: Provides 4 1000Base SFP slots *CONSOLE port: RS232 (RJ45) *Alarm port: 5.08mm spacing 3-pin Phoenix wiring terminal, 250VAC/220VDC 2 A cable *Twisted pair cable: 100m *Multimode fiber: 1310nm, 2km (100Mbps); 1310nm, 500m (gigabit) *Single mode fiber: 1310nm, 0-40km; 1550nm, 0-80km source *Input voltage: 110-220VDC/VAC, redundant input *Connection terminal: 5.08mm spacing 5-pin Phoenix wiring terminal *Power:<40W mechanical properties *Case: Aluminum model with fanless design *Protection level: IP30 *Installation method: 19 inch 1U rack type *Shell size: 440 mm * 44.5 mm * 370 mm (W * H * D), as shown in the attached image *Impact, vibration, and drop: meet the requirements of IEC61850-3 5.5 CM level *Weight: approximately 4.3kg
