1. Product Overview

2. Model Coding & Suffix Variants

1. TRICONEX: Brand identifier for Tricon TMR safety hardware

2. 2101: Trident series compact main processor hardware model

   Suffix options for different environments:

• No suffix: Standard indoor cabinet general version

• N (2101N): Enhanced EMC anti-interference variant for compressor rooms and coastal plants

• -E: English firmware version for overseas projects

• -HT: High-temperature variant, stable operating temperature up to +70°C for furnace-side cabinets

3. Core Electrical & Performance Specifications

• Backplane power supply: 24VDC from Trident rack backplane, typical power consumption ≤10W, input voltage range 18–30VDC

• Core hardware: 32-bit MPC860 RISC processor, 33MHz main frequency

• Memory allocation

  • DRAM: 1MB for real-time logic & process data

  • Flash PROM: Firmware storage, supports field online upgrade

  • Battery-backed SRAM: Store SOE logs and hardware fault records, data reserved after power failure

• Backplane bus: Proprietary Trident TriBus, communication rate 375 kbps, three mutually isolated redundant channels

• External communication interfaces

  1. 1×10/100Mbps Ethernet port (Modbus TCP/IP) for HMI/DCS data upload

  2. Isolated RS232 serial port for TriStation program download, maintenance diagnosis

• System capacity limit: Max support 512 I/O logical points, configurable logic scan cycle 20ms ~ 500ms

• SOE timestamp precision: 1ms for all digital state change, trip and module fault events

• Power protection: Built-in backplane undervoltage, overvoltage and overcurrent lockout protection for each redundant channel

4. Functional Safety & Reliability Index

• Safety certifications: IEC 61508 SIL 3, IEC 61511, TUV, UL, CE certified

• TMR voting logic: Three 2101 processors run identical safety programs synchronously; all I/O sampling values and logic operation results execute hardware 2oo3 voting to shield single-channel calculation deviation and avoid false safety trips

• MTTFS (Mean Time To Safe Failure): 260,000 hours

• MTTR: 30 minutes, full rack shutdown required for maintenance

• Single fault masking: Damage to one processor channel only triggers FAULT alarm; the other two channels maintain complete safety interlock control

• Fault storage: All bus communication errors, memory CRC faults, I/O offline alarms and trip events are latched in non-volatile memory for post-accident root cause analysis and factory safety audit

5. Environmental & Mechanical Parameters

• Standard operating temperature: -40°C ~ +65°C; -HT variant extended to +70°C

• Storage temperature: -40°C ~ +85°C

• Relative humidity: 5% ~ 95% non-condensing, cabinet installation IP20 rating

• EMC performance: Pass ESD, radiated RF, surge and fast transient burst interference tests; 2101N strengthens anti-salt-fog performance for coastal onshore sites, not recommended for long-term offshore platform deployment

• Installation: Single-slot horizontal plug-in in dedicated MP slots of Trident main rack

• Cooling: Natural convection cooling, no forced fan required under full load

• Vibration resistance: Compliant with small refinery, gas station and auxiliary boiler industrial vibration standards

6. Hardware Interfaces & Front Panel Indicators

Front Panel LED Diagnostic Lights

1. PASS: Steady green = three redundant processor channels run synchronously without inconsistency

2. FAULT: Red light = core hardware failure, three-channel voting mismatch or TriBus communication error

3. ACTIVE: Channel heartbeat running indicator

4. ETH TX/RX: Ethernet data transmit/receive flashing lights

5. COM TX/RX: RS232 serial port communication activity lights

Hardware Interfaces

1. Rear gold finger connector: Triple isolated TriBus backplane bus, realizes cross-data synchronization between three MPs and bidirectional data exchange with all rack I/O modules

2. Front external ports: RJ45 Ethernet port, 9-pin RS232 maintenance serial port

3. Mechanical lock handle for module extraction and fixing (power-off disassembly only)

7. Core Key Functions

1. TMR Triple-Redundant Synchronous Safety Logic Calculation

   Three independent 2101 MPs execute the same user ESD/F&G interlock program synchronously, collect all AI/DI/DO pulse I/O data respectively, and output final valid trip/hold commands after 2oo3 hardware voting, eliminating safety shutdown risks caused by single processor hardware failure. Optimized for small-unit simple safety logic with distributed remote I/O layout.
2. Full-Rack I/O Data Polling & Centralized Fault Diagnosis

   Each processor independently polls all local and remote I/O modules via TriBus; uniformly diagnose channel open-circuit, short-circuit and module offline faults, summarize all fault information to the main processor for unified storage and upper-level upload.
3. Millisecond-Level SOE Sequence-of-Event Recording

   Hardware timestamp unit marks all safety trip, digital status change and module fault events, stored in battery-backed SRAM. Historical records will not be lost after rack power cut-off, supporting accident traceability and safety compliance audit.
4. Dual Independent External Communication Channels

   Separate Ethernet for long-term real-time data transmission to plant DCS/HMI; isolated RS232 serial port exclusive for offline program download and fault log reading, two communication channels do not occupy each other’s bandwidth. Supports Modbus TCP standard industrial protocol for third-party system docking.
5. Automatic Cross-Channel Program Synchronization & Redundant Backup

   All safety programs and system configuration parameters are stored in independent Flash of each 2101. After rack power restart, three MPs automatically synchronize program files to realize triple redundant backup. When replacing a faulty 2101 spare card, the two normal processors automatically copy all complete configurations without repeated manual download.
6. Support Fiber Remote I/O Chassis Expansion

   Matched with RXM series fiber remote extender modules, the 2101 system can deploy remote I/O cabinets up to 2km away via multi-mode fiber, reducing long-distance field sensor wiring length and lowering electromagnetic interference risks of signal cables.

8. Typical Application Scenarios

1. Small & medium petrochemical plant single-unit ESD emergency shutdown safety instrument systems

2. Onshore mini oil & gas station fire and gas detection safety monitoring

3. Auxiliary industrial boiler overtemperature/overpressure protection SIL 3 systems

4. Small natural gas pipeline branch compressor station safety interlock control

5. Low-risk fine chemical single-reactor temperature/pressure safety monitoring

6. Legacy Trident compact SIS system spare part replacement & renovation projects

9. Installation & Maintenance Guidelines

Installation Restrictions

1. Platform compatibility: Only matched with Trident series racks and V7/V8 Trident firmware; incompatible with large-scale Tricon classic racks (3003/3005/3006/3008 MP series)

2. Power-off mandatory rule: Full rack power supply must be completely cut off before plugging or removing any 2101 module; online hot-swap is strictly forbidden

3. Wiring specification: Ethernet and RS232 cables adopt shielded twisted pair; all cable shields implement single-point grounding only at cabinet ground bar, double-end grounding prohibited to avoid communication packet loss

4. Slot layout: Install only in three dedicated MP slots of Trident main rack; reserve ≥20cm ventilation gap around the three processors, avoid placing high-power heat-generating I/O modules adjacent to MP cards

Daily Inspection Standards

• Visual check: PASS light steady green, no constant FAULT red light; ETH/COM TX/RX lights flash normally during data interaction

• Weekly operation: Log into TriStation to export full-system SOE logs and processor fault records for offline backup

• Monthly maintenance: Clean dust on front panel indicators, communication ports and rack ventilation slits; check cabinet cooling fan and ambient operating temperature

Regular Inspection Cycle

• Standard indoor control room: Full communication test, Flash program CRC integrity verification and backup battery voltage check every 12 months

• Coastal salt-fog / high-temperature furnace-side cabinets: Inspection cycle shortened to 6 months

• Test items: Three-channel synchronous operation verification, Ethernet/serial communication stability test, backup battery aging replacement when voltage below threshold

Common Fault Handling Steps

1. Single channel FAULT light permanently lit: Check whether the module mechanical handle is fully locked; inspect backplane connector dust/corrosion and rack 24V power supply voltage

2. Mass I/O modules offline simultaneously: Cut off full rack power supply, re-seat three 2101 main processors and restart the rack for automatic cross-program synchronization

3. Internal processor/memory hardware failure: Arrange planned full-unit shutdown maintenance, cut off rack power, replace with identical spare 2101 module, restore power and wait for automatic parameter synchronization, then clear historical fault logs

Prohibited Operations

Spare Module Storage & Service Life

• Storage environment: Constant-temperature dry warehouse (0~40°C, RH ≤70%), sealed in original anti-static packaging bags to prevent static damage to internal chips

• Shelf maintenance: Conduct 30-minute power-on aging test every 6 months to activate internal circuit capacitors and detect backup battery voltage attenuation

• Design service life: 12 years under rated operating conditions; unified batch replacement recommended after expiration to guarantee overall SIS SIL 3 safety integrity level