1. General Information
- Model: DI2301 (Full Part Number: 7400208-020)
- Product Type: Safety-Certified Digital Input Module
- Manufacturer: TRICONEX (a business unit of Schneider Electric)
- Core Function: Receives 24 VDC (industrial-standard DC) discrete signals from field devices, converts them into standardized digital data for SIS/DCS logic processing, and enables real-time fault detection to maintain operational safety. Complies with SIL 2/3 (Safety Integrity Level) requirements per IEC 61508, ensuring reliability in safety-critical applications.
2. Electrical Specifications
- Power Supply:
- Input Voltage: 24 VDC ±10% (supports redundant power input— a hallmark of TRICONEX safety modules—to minimize downtime in case of single power path failure).
- Power Consumption: ≤6 W under rated load (excludes power drawn by external field devices connected to input channels).
- Digital Input Specifications:
- Input Channels: 8/16 independent isolated channels (common for TRICONEX DI modules; channel-to-channel isolation prevents cross-signal interference and limits fault propagation, a key safety feature).
- Input Signal Type: 24 VDC sinking or sourcing (configurable via DIP switches on the module or TRICONEX TriStation 1131 software, adapting to different field device wiring schemes).
- Input Voltage Range:
- Off-State Voltage: ≤5 VDC (maximum, to avoid false triggers from electrical noise).
- On-State Voltage: 19–30 VDC (typical, compliant with IEC 61131-2 industrial standards for reliable signal detection).
- Input Current:
- On-State Current: 4–10 mA per channel (at 24 VDC, ensuring stable signal recognition without overloading field devices).
- Off-State Current: ≤1 mA per channel (minimizes power loss and reduces the risk of false alarms).
- Response Time: ≤1 ms per channel (enables real-time capture of time-critical signals, e.g., emergency stop triggers, to meet SIS latency requirements).
3. Physical & Environmental Ratings
- Dimensions: Standard rack-mount form factor (compatible with TRICONEX SIS chassis; typical: Width ≈ 177 mm, Height ≈ 54 mm, Depth ≈ 254 mm—confirm exact dimensions with the official datasheet).
- Weight: Approximately 0.4–0.7 kg (net weight, excluding mounting hardware, wiring accessories, and external cables).
- Protection Class: IP20 (suitable for indoor control cabinet installation; dust-protected but not water-resistant—requires environmental control in harsh industrial areas with high humidity or dust).
- Operating Temperature Range: 0°C to 60°C (meets industrial SIS requirements for stable operation in temperature-fluctuating environments, e.g., refinery control rooms).
- Storage Temperature Range: -40°C to 85°C (safe for storage during transportation, installation, or system downtime).
- Humidity Resistance: 5%–95% RH (non-condensing; moisture ingress is prohibited to prevent circuit corrosion, short circuits, or signal degradation).
- Vibration Resistance: 5–500 Hz, 0.5 g acceleration (per IEC 60068-2-6; ensures stability in environments with rotating machinery or mechanical vibration, e.g., power plant turbines).
- Shock Resistance: 15 g acceleration (11 ms duration, per IEC 60068-2-27; withstands transient impacts during module installation, maintenance, or equipment startup).
4. Communication & Compatibility
- Backplane Communication:
- Bus Type: TRICONEX Proprietary Backplane Bus (high-speed, redundant; data transfer rate ≥100 Mbps to ensure low-latency signal transmission between the DI2301 and TRICONEX control modules, e.g., CM2201, CM3000).
- Configuration Interface:
- Compatible with TRICONEX TriStation 1131 software (for channel parameterization, diagnostic monitoring, firmware updates, and fault log retrieval).
- System Compatibility:
- Designed for seamless integration with TRICONEX SIS platforms (e.g., Tricon, Trident, TriStation).
- Works with other TRICONEX safety I/O modules (e.g., DO2401 digital output modules, AI3201 analog input modules) and control modules to form complete safety control loops.
5. Compliance & Safety
- Safety Certifications:
- SIL 2/3 Certified (per IEC 61508:2010, for safety-related digital input functions).
- ATEX/IECEx Certified (for use in hazardous areas: Zone 2/22, if applicable—confirm specific certification details with official documents).
- UL 61010-1 Certified (meets safety requirements for electrical equipment in industrial control systems, ensuring protection against electrical hazards).
- Fault Detection & Tolerance:
- Built-in self-diagnostic functions: Monitors for open circuits/short circuits in input loops, power supply anomalies, and internal component faults. Fault status is transmitted to the SIS controller for immediate alerting.
- Supports configurable voting logic: Compatible with 2-out-of-2 (1oo2) or 2-out-of-3 (2oo3) voting schemes (via TriStation 1131) to reduce false trips and ensure fail-safe operation.
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