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TRICONEX 3636R Triple Modular Redundant (TMR) Digital Input Module
Product Overview
The TRICONEX 3636R is a high-reliability Triple Modular Redundant (TMR) Digital Input Module designed for safety-critical industrial applications, serving as a core component of TRICONEX’s Tricon Series safety instrumented systems (SIS). Engineered to provide fault-tolerant signal acquisition, this module ensures the integrity of discrete input signals in environments where system failure could lead to severe safety or operational consequences. As part of a triplicated architecture, the 3636R processes signals through three independent channels, voting on results to mitigate single-point failures and maintain system availability in industries such as oil & gas, chemical processing, and power generation.
Featuring 16 isolated digital input channels, the TRICONEX 3636R converts field signals (e.g., switches, relays, or sensors) into standardized logic levels for processing by the Tricon controller. Each channel supports a wide voltage range (24–125 V DC/AC) and includes built-in surge protection, ensuring robust performance in harsh environments with high electromagnetic interference (EMI) or voltage transients. The module’s compatibility with TRICONEX’s Tricon platform enables seamless integration with other TMR components, such as output modules and communication gateways, forming a cohesive safety system that complies with international standards like IEC 61508 and ISA 84.00.07.
In automation ecosystems, the 3636R plays a pivotal role in monitoring critical process variables (e.g., valve positions, emergency shutdown signals, or equipment status) and transmitting this data to the safety controller for real-time decision-making. Its advanced diagnostics continuously monitor channel health, power supply stability, and signal validity, providing early warnings of potential failures through the system’s human-machine interface (HMI). By combining triple redundancy with intelligent fault detection, the TRICONEX 3636R minimizes unplanned downtime, enhances operational safety, and reduces the total cost of ownership for mission-critical applications.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 3636R |
| Manufacturer | TRICONEX |
| Product Type | TMR Digital Input Module |
| Input Channels | 16 isolated channels |
| Input Voltage Range | 24–125 V DC/AC |
| Isolation | Galvanic isolation (2.5 kV RMS) |
| Physical Dimensions | 177.8 mm (H) × 101.6 mm (W) × 228.6 mm (D) |
| Weight | 1.5 kg |
| Operating Temperature | -40°C to +70°C |
| Power Supply | 24 V DC (from Tricon backplane) |
| Redundancy | Triple modular redundancy (TMR) |
| Certifications | IEC 61508 (SIL 3), ISA 84.00.07, NEC Class I Div 2, ATEX/IECEx |
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Key Features and Advantages
Triple Modular Redundancy (TMR) Architecture: The 3636R leverages a triplicated design, where each input signal is processed by three independent channels. A majority vote mechanism ensures that transient faults or single-channel failures do not propagate to the controller, providing inherent fault tolerance without external hardware. This architecture is critical for achieving SIL 3 compliance in safety-critical systems.
Wide-Range Signal Compatibility: The module supports both DC and AC input signals across a broad voltage spectrum, eliminating the need for specialized modules or signal conditioning hardware. This flexibility simplifies inventory management and reduces upfront costs in diverse industrial setups.
Advanced Diagnostics and Self-Testing: Built-in self-diagnostic functions continuously monitor channel integrity, including open circuits, short circuits, and voltage anomalies. Faults are reported in real time via the Tricon system’s diagnostic interface, enabling proactive maintenance and reducing mean time to repair (MTTR).
Rugged Industrial Design: Constructed with a reinforced metal enclosure and conformal-coated PCBs, the 3636R withstands extreme environmental conditions, including vibration (up to 5 g), shock (30 g), and humidity (5–95% non-condensing). Its wide temperature range ensures reliable operation in both tropical refineries and arctic oil fields.
Seamless System Integration: As part of the Tricon platform, the 3636R interfaces seamlessly with TRICONEX’s Tricon CX controllers and I/O modules, as well as third-party systems via open protocols like Modbus or Ethernet/IP. This interoperability allows for scalable system design, from small-scale applications to large, distributed safety systems.
Compliance with Global Standards: The module’s design and testing adhere to rigorous safety standards, making it suitable for use in regulated industries worldwide. Its certification for hazardous areas (e.g., ATEX/IECEx) further expands its applicability in explosive environments.
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Application Areas
The TRICONEX 3636R is essential in industries where safety and reliability are non-negotiable:
- Oil & Gas: Monitors emergency shutdown (ESD) signals, valve positions, and pressure switches in offshore platforms, refineries, and pipelines, ensuring compliance with safety regulations and preventing catastrophic events.
- Chemical Processing: Controls safety interlocks in reactors, distillation units, and storage facilities, detecting abnormal conditions (e.g., overpressure, temperature spikes) and triggering appropriate responses to mitigate risks.
- Power Generation: Manages safety-critical inputs in turbine control systems, including generator breaker status and fire detection signals, to maintain grid stability and prevent equipment damage.
- Pharmaceuticals and Food & Beverage: Ensures sterile process control and equipment safety in manufacturing lines, where downtime can lead to product loss or regulatory non-compliance.
Specific applications include:
- Safety Instrumented Systems (SIS): Provides fail-safe input signals for ESD systems, burner management systems (BMS), and machine guarding applications.
- Process Automation: Integrates with PLCs or DCS systems to monitor discrete events (e.g., conveyor belt alignment, pump status) in automated manufacturing processes.
- Hazardous Area Monitoring: Deployed in Class I, Division 2 environments to safely acquire signals from field devices in explosive atmospheres.
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Related Products
- TRICONEX 3664R TMR Digital Output Module: Complements the 3636R by providing triplicated digital outputs for controlling actuators or relays in safety loops.
- TRICONEX 3700 Series Analog Input Modules: Extend the system’s capabilities by monitoring continuous process variables (e.g., temperature, pressure) alongside discrete inputs.
- TRICONEX Tricon CX Controller: The central processing unit for the Tricon system, which processes inputs from the 3636R and executes safety logic.
- TRICONEX 3008 TMR Power Supply Module: Provides redundant power to the 3636R and other Tricon components, ensuring uninterrupted operation during power fluctuations.
- TRICONEX 4351B Communication Module: Enables integration of the 3636R with SCADA systems or enterprise-level networks via protocols like OPC UA or Profibus DP.
- TRICONEX 3503E TMR Speed Monitor Module: Specialized for rotational speed monitoring in turbines or motors, working alongside the 3636R in machinery protection systems.
Installation and Maintenance
Pre-installation Preparations:
Before installing the TRICONEX 3636R, ensure the Tricon rack is properly grounded and powered. Verify that field devices comply with the module’s voltage requirements and use shielded cables to minimize EMI. Mount the module in the Tricon rack using the provided hardware, ensuring correct alignment with the backplane connectors. Use TRICONEX’s Tricon Engineering Workbench software to configure channel parameters (e.g., signal type, debounce time) and enable diagnostic features.
Before installing the TRICONEX 3636R, ensure the Tricon rack is properly grounded and powered. Verify that field devices comply with the module’s voltage requirements and use shielded cables to minimize EMI. Mount the module in the Tricon rack using the provided hardware, ensuring correct alignment with the backplane connectors. Use TRICONEX’s Tricon Engineering Workbench software to configure channel parameters (e.g., signal type, debounce time) and enable diagnostic features.
Maintenance Suggestions:
- Routine Inspections: Conduct quarterly visual checks to confirm secure connections, clean the module’s vents, and review diagnostic reports for any unresolved faults.
- Functional Testing: Annually perform end-to-end testing of each channel using a calibrated signal source to ensure accuracy and responsiveness. Document test results for compliance audits.
- Firmware Updates: Periodically update the module’s firmware via the Tricon system to incorporate bug fixes and security enhancements, following TRICONEX’s recommended procedures.
- Spare Parts Management: Store spare 3636R modules in anti-static packaging at room temperature (20–25°C) with low humidity to preserve component reliability. Rotate inventory to ensure shelf-life viability.
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Product Guarantee
Our company provides a 12-month quality warranty for the TRICONEX 3636R, covering hardware defects under normal operating conditions. In the event of unexpected failures, we offer prompt replacement services to minimize downtime. For legacy or discontinued models like the 3636R, our global supply chain network specializes in sourcing rare and obsolete industrial control components, ensuring quick turnaround for urgent requirements. Our technical support team is available 24/7 to assist with installation, troubleshooting, and system optimization, delivering tailored solutions to keep your safety systems operating at peak performance.
For sales inquiries, contact us via WhatsApp at +86 18859254943 or email at sales@ygplc.com.
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