Core Configuration High-density security system mainframe (core carrier of the system) Slot quantity: 16 I/O/communication module slots Expansion bus: 6 channels of RS-485 I/O expansion ports (A/B/C triple redundancy) System control: 4-bit key switch (RUN/PROGRAM/STOP/LOCK) Supported I/O capacity: Up to 192 digital points / 96 analog points (with high-density module) Backplane rate: I/O bus 375 kbps, communication bus 2 Mbps Electrical parameters System power supply Input voltage: 24VDC ±10% (dual redundant power supply) Power consumption: ≤ 30W (full load of the entire box) Insulation strength: 1500VAC isolation between the back panel and the casing Environment and mechanics Operating temperature: -40℃ ~ +70℃ Humidity: 0%–95% RH (no condensation) Protection level: IP65 (industrial dust and splash protection) Dimensions: 465mm × 578mm × 333mm Weight: Approximately 24.5kg (excluding modules) Product features System Core: Tricon SIS standard chassis, housing CPU, I/O and communication modules Triple Redundancy: TMR hardware architecture, no single point of failure, no system downtime in case of failure High-density Integration: 16-slot design, single chassis covers all point requirements of medium and small-sized SIS Strong Expansion Capability: Supports multi-box cascading (8111/8121 expansion boxes), up to 4096 points Full Self-Diagnosis: Real-time monitoring and reporting of backplane, power supply, bus, and module status Hot Swap Support: All modules can be replaced online without interrupting system operation Wide Temperature Resistance and Anti-Interference: Industrial-grade EMI/EMC protection, suitable for harsh industrial conditions in chemical and power industries Applicable scenarios Chemical / Petrochemical / Oil and Gas: ESD emergency shutdown, BMS burner management, F&G fire protection system core installation carrier TRICONEX 811 Basic Information Model: 8111 Series: Tricon 8100 System Expansion Cabinet Architecture: TMR Triple Module Redundancy Safety Level: SIL3 Compatible System: Compatible with 8110 main cabinet for use Product Status: Widely used in the field, with stable spare parts supply Power/Energy: Boiler protection, turbine interlock, main station cabinet for unit safety control Small and Medium-sized SIS Projects: System deployment completed by a single cabinet, no additional expansion required High-density Safety Control: Compact safety system with concentrated points and limited space Series Differentiation 8110: Standard High-density Main Cabinet (16 slots), system must be equipped 8111: Expansion Cabinet (16 slots), used for I/O point expansion 8121: High-density Expansion Cabinet (32 slots), used for large system expansion 8112: RXM Remote Cabinet, dedicated for remote I/O deployment