Triconex Tricon v9-v11 fault-tolerant control system: triple module redundant architecture and high availability design

TriBus: Used for data exchange between three main processors, hardware digital input voting, and control program variable comparison. Its speed varies from 4 Mbps to 1000 Mbps depending on the processor model, using fully isolated serial channels and DMA transmission.

I/O bus: Triple RS-485 bidirectional communication port with a speed of 375 kbps, connecting the host rack and expansion rack. It transfers input data from the I/O module to the main processor and outputs data from the main processor to the output module.

Communication bus: runs between the main processor and communication module, with a speed of 2 Mbps and supports broadcast mechanism.

These bus systems together form the high-speed, fault-tolerant data transmission network of the Tricon system, ensuring real-time and consistent control logic.

Power system and comprehensive alarm

Power supply is the foundation of any control system, and Tricon adopts a dual redundant and high-efficiency power supply design. Each rack contains two power modules, such as 120 VAC, 24 VDC, or 230 VAC modules. Each power module obtains power from the backplane and has an independent power regulator for each channel. They supply power to two independent power rails on the backplane and have built-in diagnostic circuits to check for voltage out of range and over temperature conditions. The power module also provides a set of alarm contacts (normally open and normally closed), which are activated in the event of any power failure or overheating warning to summon maintenance personnel. This design ensures that the controller can continue to operate even in the event of a complete failure of a single power supply.

Model Supplement

1. Controller model

Tricon v9.x

Tricon v10.x

Tricon v11.x

2. Chassis model

Model Description

8110 Main Chassis

8120E Enhanced Performance Main Chassis

8111 Expansion Chassis

8121 Enhanced Low-Density Expansion Chassis

8112 RXM Chassis

8110ATEX ATEX Main Chassis

8111ATEX ATEX Expansion Chassis

8112ATEX ATEX RXM Chassis

3. Model of power module

Model Description

8310 120 VAC/DC Power Module

8311 24 VDC Power Module

8312 230 VAC Power Module

8310N2 120 VAC/DC Power Module (Nuclear)

8311N2 24 VDC Power Module (Nuclear)

8312N2 230 VAC Power Module (Nuclear)

4. Main processor model

Model Description

3006 Main Processor (Tricon v9)

3007 Main Processor (Tricon v9)

3008 Enhanced Main Processor III, 16 MB

3009 Enhanced Main Processor, 256 MB

5. RXM/SRXM module model

Model Description

4200-3 Primary RXM Module Set (multi-mode)

4201-3 Remote RXM Module Set (multi-mode)

4210-3 Primary SRXM Module Set (single-mode)

4211-3 Remote SRXM Module Set (single-mode)

6. Model of analog input module

Model Description

3700 0-5 VDC TMR Analog Input

3700A 0-5 VDC TMR Analog Input

3701 0-10 VDC TMR Analog Input

3703E 0-5/10 VDC Isolated TMR Analog Input

3704E 0-5/10 VDC High-Density TMR Analog Input

3720 0-5 VDC High-Density Single-Ended TMR AI

3721 0-5 VDC or -5 to +5 VDC Differential TMR AI

7. Model of analog output module

Model Description

3805E 4-20 mA TMR Analog Output

3805H 4-20 mA TMR Analog Output (high load)

3806E 6×4-20 mA + 2×20-320 mA TMR Analog Output

3807 Bipolar -60 to +60 mA TMR Analog Output

8. Model of digital input module

Model Description

3501E/T 115 VAC/VDC TMR Digital Input

3502E 48 VAC/VDC TMR Digital Input

3503E 24 VAC/VDC TMR Digital Input

3504E 24/48 VDC High-Density TMR Digital Input

3505E 24 VDC Low-Threshold TMR Digital Input

3564 24 VDC Single Digital Input

9. Model of digital output module

Model Description

3601E/T 115 VAC TMR Digital Output

3603B 120 VDC TMR Digital Output

3603E/T 120 VDC TMR Digital Output

3604E 24 VDC TMR Digital Output

3607E 48 VDC TMR Digital Output

3611E 115 VAC Supervised TMR Digital Output

3613E 120 VDC Supervised TMR Digital Output

3614E 24 VDC Supervised TMR Digital Output

3615E 24 VDC Low-Power Supervised TMR Digital Output

3617E 48 VDC Supervised TMR Digital Output

3623/T 120 VDC Supervised TMR Digital Output

3624 24 VDC Supervised TMR Digital Output

3625/A 24 VDC Supervised/Non-Supervised TMR Digital Output

3636R/T Relay Output (Non-Triplicated)

3664 24 VDC Dual Digital Output

3674 24 VDC Dual Digital Output

10. Model of pulse input module

Model Description

3510 Pulse Input TMR

3511 Pulse Input TMR

3515 Pulse Totalizer Input TMR

11. Model of thermocouple input module

Model Description

3706A Non-Isolated Thermocouple Input TMR

3708E Isolated Thermocouple Input TMR

12. Communication module model

Model Description

ACM (4609) Advanced Communication Module

EICM (4119/A) Enhanced Intelligent Communication Module

HIM Hiway Interface Module

NCM (4329) Network Communication Module

SMM Safety Manager Module

TCM (4351B, 4352B, 4353, 4354) Tricon Communication Module

UCM (4610) Unified Communication Module

13. Model of HART interface module

Model Description

2770H HART Interface Module

2870H HART Interface Module

14. Terminal panel model (some examples)

Model Description

9251-210 DO ETP for 3603B

9553-610 DI ETP, Basic, 24V

9561-110 DI ETP, 115V

9662-610 DO ETP for 3625/C

9765-210 AI ETP, Current Input

9853-610 AO ETP for 3805HC

15. Other accessory models

Model Description

9000 I/O Bus Cable Set

9001 I/O and Comm Bus Cable Set

8405 Chassis Mounting Bracket Kit