The TRICONEX DI2301 is a high-reliability digital input module from Triconex (a Schneider Electric brand), specifically designed for integration with Tricon Triple Modular Redundancy (TMR) control systems. As a core component in industrial Safety Instrumented Systems (SIS) and critical process control, this module specializes in acquiring discrete digital signals (such as equipment switch states and alarm signals) from the field and transmitting them to controllers for processing. It is widely used in industries with stringent safety and stability requirements, including oil & gas, chemicals, and power generation.
- Input Type: Discrete digital inputs (supports dry contact and wet contact signals)
- Input Voltage Range: 24V DC (standard), compatible with 12–30V DC wide-range inputs
- Number of Input Channels: 16 independent channels with electrical isolation between each channel
- Input Current: Maximum 7mA per channel (at 24V DC)
- Response Time: ≤5ms typical (from signal input to processor recognition)
- Isolation Performance: Isolation voltage ≥250V AC between channels and between channels and backplane
- Operating Temperature: -40°C to +70°C (wide-temperature design for extreme industrial environments)
- Storage Temperature: -50°C to +85°C
- Relative Humidity: 5% to 95% (non-condensing)
- Vibration Resistance: 10–500Hz, 1g acceleration (operating condition)
- Shock Resistance: 30g peak acceleration (11ms duration)
- Safety Integrity Level: Complies with IEC 61508 standard SIL 3 requirements
- Certifications: ATEX explosion-proof certification, IECEx certification, CE marking
- Electromagnetic Compatibility (EMC): Conforms to EN 61000 series standards with strong anti-interference capability
TMR Architecture Compatibility: Fully integrated with Triconex TMR systems, ensuring accurate data acquisition through triple modular signal processing. Single-channel faults do not affect overall system operation, meeting high safety standards.
High-Reliability Design: Utilizes industrial-grade components and redundant power supply design, with a Mean Time Between Failures (MTBF) exceeding 100,000 hours, ensuring stable operation in harsh industrial environments.
Rapid Response Capability: With a response time of ≤5ms, it can quickly capture field signal changes, making it suitable for control scenarios requiring high real-time performance (e.g., emergency shutdown interlocks).
Online Diagnostic Function: Built-in real-time self-diagnostic circuits monitor faults such as channel short circuits, open circuits, and power anomalies. Diagnostic information is transmitted to the controller via the system bus for rapid troubleshooting.
Hot-Swappable Support: The module supports online hot swapping, allowing replacement without system shutdown, minimizing maintenance-related production downtime and improving system availability.
Flexible Wiring Options: Supports both screw terminals and spring terminals, adapting to diverse on-site wiring requirements for convenient and secure installation.
- Oil and Gas Industry: Wellhead emergency shutdown valve status monitoring, pipeline pressure switch signal acquisition, refinery unit interlock signal detection
- Chemical Industry: Reactor safety interlock signal input, toxic gas detector alarm status acquisition, equipment operation status feedback in explosion-proof areas
- Power Industry: Generator set protection signal input, substation circuit breaker status monitoring, boiler safety interlock signal acquisition
- Other Critical Industrial Fields: Nuclear power plant auxiliary system status monitoring, rail transit signaling systems, compliance monitoring for large pharmaceutical production lines
- Designed for use with Triconex Tricon controllers (e.g., 3700 series, 8000 series)
- Configurable and programmable via TriStation 1131 software, with customizable parameters such as input signal filtering time and alarm thresholds
- Works synergistically with other system modules (e.g., digital output modules, analog modules) to form complete safety control loops
- During selection, confirm on-site signal types (dry/wet contacts) and voltage ranges to ensure compatibility with module parameters
- Installation must be performed by professional technicians, strictly following explosion-proof specifications for hazardous area deployments
- Regularly check module operation status via system diagnostic tools to ensure channel integrity and maintain system reliability
With its high safety, rapid response, and reliable performance, the TRICONEX DI2301 is an ideal choice for digital signal acquisition in critical industrial processes, providing robust protection for production safety.
