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Triconex DI2301
Product Name: DI2301 triple-modular-redundant 24 VDC digital input module for Tricon safety systems.
Product Introduction: DI2301 collects field discrete signals from emergency pushbuttons, limit switches, relay contacts and sensors, then provides isolated and voted digital input data to the Tricon safety instrumented system.
Detailed content
Technical Specifications: 16 input channels; 24 VDC nominal field voltage; galvanic channel-to-channel isolation; operating temperature 0°C to +60°C; storage -40°C to +85°C; approximately 8 W power consumption; approximately 1.1 kg; IEC 61508 SIL3, UL and CE according to the installed certification package.
Function Features: Triple-modular-redundant acquisition; 2-out-of-3 voting with the Tricon main processors; open-circuit and short-circuit diagnostics; hot-swap replacement with compatible baseplate; per-channel and module fault LEDs; TriStation diagnostic upload.
Application Scenarios: Petrochemical emergency shutdown systems; oil and gas safety cabinets; burner management interlocks; fire and gas detection input; power-plant safety interlock collection.
Performance Parameters: Response suitable for safety discrete input scanning; fault detection for wiring and channel anomalies; isolation to suppress cross-channel interference.
Material Composition: Conformal-coated multilayer industrial PCB; flame-retardant engineering plastic housing; channel isolation electronics; surge suppression and filtering components; gold-plated backplane connector.
Structural Characteristics: Single-slot plug-in module for Tricon chassis; dedicated DI2301 baseplate and external termination panel; front LED array; bottom edge connector to baseplate; front latch for mechanical locking.
Working Principle: Field 24 VDC contact signals pass through the termination panel and baseplate to each input channel, are conditioned and isolated, are scanned by three redundant input paths, and are transmitted to the system Tribus for 2-out-of-3 voting and safety logic.
Installation Requirements: Install the matching DI2301 baseplate in the designated Tricon slot; insert the module and secure the front latch; use approved Triconex cables between baseplate and termination panel; route field and power cables separately; maintain cabinet temperature within the rated range.
Usage Precautions: Verify baseplate compatibility and termination type before replacement; do not energize unknown field circuits at voltages above the 24 VDC specification; perform channel diagnostics after replacement; keep spare module configuration identical to the active safety project.
