System core positioning and core characteristics
Product positioning: Designed specifically for industrial safety critical scenarios, it can undertake core tasks such as emergency shutdown (ESD), fire and gas detection (F&G), burner management (BMS), process control, etc. It is widely used in fields such as petrochemicals, nuclear power generation, semiconductor manufacturing, and offshore platforms that require high reliability and safety.
Deep analysis of core architecture:
Triple Modular Redundancy (TMR): Three completely independent system channels (A/B/C) execute control programs in parallel, each channel containing independent processors, I/O circuits, and power paths. The input data is verified through a hardware voting mechanism (2/3 voting for digital values and median for analog values), and the output data is voted on at the nearest output module end to ensure that the fault channel does not affect the system output.
Dual redundancy design: the power module and some communication modules (such as TCM/UCM) adopt dual redundancy configuration. When any module fails, the standby module takes over seamlessly without downtime.
Channel isolation: Three channels are completely physically and electrically isolated, and a single channel fault will not spread to other channels. The faulty channel can be replaced online, and the system will automatically resume full TMR operation after replacement.
Key advantage details:
Online maintenance capability: All modules (processor, I/O, power supply, communication) support hot swapping, and there is no need to interrupt the control process when replacing them. The module automatically completes parameter synchronization after insertion (hot backup module).
Fault self diagnosis: Each module is equipped with an independent diagnostic circuit, covering power supply faults, communication faults, I/O circuit faults, module hardware faults, etc. The diagnostic coverage rate is over 99%, and fault information is reported in real-time through indicator lights, alarm contacts, or software.
Anti interference capability: Compliant with IEC 61000 series EMC standards, with electrostatic discharge (ESD) protection up to 8kV (air)/4kV (contact) and surge protection up to 2kV, suitable for industrial strong interference environments.
Remote scalability flexibility: With SRXM single-mode fiber modules, remote I/O racks can be deployed 7.5 miles (12 kilometers) away from the main rack, supporting multi site cascading and meeting the distributed control needs of large factories.
International Certification and Compliance:
Functional safety certification: T Ü V Rheinland certification, compliant with IEC 61508 (SIL 1-3), IEC 61511 (Process Industry Functional Safety), EN 54 (Fire and Gas Detection), NFPA 85/86 (Burner Management).
Environmental and safety certifications: CSA certification (compliant with CAN/CSA-C22.2, UL 61010), FM certification (Class I, Division 2 hazardous areas), NRC certification (nuclear 1E applications), ATEX certification (Zone 2 hazardous areas), CE certification (compliant with EMC Directive 2004/108/EC and Low Voltage Directive 2006/95/EC).
Detailed Description of Hardware Components (Supplementary Parameters and Adaptation Relationships)
(1) Chassis: System Installation and Expansion Core
Type, Model, Core Parameters, Adaptation Module, and System Version Application Scenarios
Main frame 8110 size: 48.3cm (width) x 57.8cm (height) x 45.1cm (depth); Support 6 sets of logical I/O slots (2 physical slots per set); TriBus speeds of 25Mbps (paired with 3008/3009 MP) and 4Mbps (paired with 3006/3007 MP); Includes 2 power module slots, 3 processor slots, and 1 communication slot (COM 1) to support all I/O modules and communication modules (TCM/EICM/NCM); Compatible with v9.0-11. x system standard system core, suitable for medium to large control scenarios
The size of the enhanced mainframe 8120E is the same as that of 8110; Support 5 sets of logical I/O slots; TriBus speed of 1000Mbps (only compatible with 3009 MP); COM 1 (TCM specific) and COM 2 (UCM specific, 2 physical slots) only support 3009 MP and UCM modules; Adapting to v11. x system requires high-speed communication and integration with Foxboro Evo system scenarios
Expansion rack 8111 has the same size as 8110; Supports 8 sets of logical I/O slots; No processor slot; Connected to the host rack through the I/O bus, supporting all I/O modules up to a maximum distance of 30 meters; Adapt to v9.0-11. x system local I/O expansion, used when the host rack I/O slots are insufficient
Low density expansion rack 8121 supports 5 sets of logical I/O slots; Compatible with HART interface module (2770H/2870H); I/O bus speed of 375Kbps supports low-density I/O modules and HART modules; Adapt to scenarios where the v10.4-11. x system requires HART protocol communication and fewer I/O points
Remote rack 8112 supports 6 sets of logical I/O slots; Need to be paired with RXM/SRXM remote expansion module; Connected to the mainframe through fiber optic cables, supporting all I/O modules up to a maximum distance of 12 kilometers; Adapt to remote area I/O deployment of v9.0-11. x systems (such as factory remote devices)
Email:wang@kongjiangauto.com