TRICON redundant fault-tolerant control systems provide an optimal choice for critical control of industrial processes requiring maximum safety and continuous production. Leading companies in the chemical, oil and gas, paper, and power generation industries have successfully used TRICON fault-tolerant control systems to improve safety, increase throughput, and reduce the number of stops.
TRICON is the most modern fault-tolerant controller based on triple modular redundancy (TMR) architecture. It integrates three isolated, parallel control systems (each called a sub-circuit) and extensive diagnostics in a single system, providing highly refined, error-free, uninterrupted process operation with a three-for-two vote, with no single point of failure that could cause the system to fail.
System Modules
name | model | name | model | |
| main frame | 2264718 | Expansion / RXM Rack Power Supply, 230VAC | 8307A | |
| Extended rack | 8101 | Expansion / RXM Rack Power Supply, 115VAC / DC | 8305A | |
| Remote Extended Rack | 8102 | Expansion / RXM Rack Power Supply, 24VDC | 8306A | |
| I / O bus extension cable (3 sets) | 9000 | Safety Management module (SMM) | 4400 | |
| I / O communication bus extension cable (3 sets) | 9001 | High-speed channel interface module (HIM) | 4508 | |
| I / O slot board | 8105 | Expansion / RXM Rack Power Supply, 24VDC | 8306A | |
| Empty terminal slot board | 8106 | Network communication module (NCM) | 4328 | |
| Main engine frame power supply, 230VAC | 8302A | Safety Management module (SMM) | 4400 | |
| Main engine frame power supply, 115VAC / DC | 8300A | High-speed channel interface module (HIM) | 4508 | |
| Main-frame power supply, 24VDC | 8301A | Communication network module / ISA bus | 2051934 | |
| Control system power supply 120 VA C/VDC | 8310 | Enhanced intelligent communication module (EICM) is non-isolated | 4108 | |
| Control system power supply 24VDC | 8311 | Enhanced intelligent communication module (EICM) isolation type | 4118 | |
| Control system power supply 230VAC | 8312 | Enhanced intelligent communication card, EICM | 4119 | |
| CPU | 3006 | Network communication card piece NCM | 4329 | |
| CPU | 3007 | Communication with the Honeywell (UCN) for the SMM | 4409 | |
| CPU | 3008 | Communication with the Foxboro (DCS) for the ACM | 4609 | |
| Enhanced TRICONZ main processor II, SOE, 1 MSRAM | 3004 | Enhanced intelligent communication module (EICM) is non-isolated | 4108 | |
| Enhanced TRICONZ Main Processor II, SOE, 2 MSRAM | 3005 | Enhanced intelligent communication module (EICM) isolation type | 4118 |
I/O Modules
| voltage | name | type | model | check the number |
| 115VAC/DC | Digital input module, isolated, non-public | TMR | 3501E | 32 |
| 115VAC/DC | Digital input module, non-public | Simple type | 3531E | 32 |
| 48VAC/DC | Digital input module, 8 sets of public, self-test | TMR | 3502E | 32 |
| 48VAC/DC | Digital input module,, non-public | Simple type | 3532E | 32 |
| 24VAC/DC | Digital input module, 8 sets of public, self-test | TMR | 3503E | 32 |
| 24VAC/DC | Digital input module,, non-public | Simple type | 3533E | 32 |
| 24VAC/48VDC | Digital input module, high density, and DC coupling | TMR | 3504E | 64 |
| 24VDC | Digital input module, low limit, self-test | TMR | 3505E | 32 |
| impulse input | Digital input module, non-public, DC coupling | TMR | 3510 | 8 |
| 115VAC | Digital output module, light isolation, non-public use | TMR | 3601E | 16 |
| 120VDC | Digital output module, light isolation, non-public use | TMR | 3603E | 16 |
| 24VDC | Digital output module, light isolation, non-public use | TMR | 3504E | 16 |
| 48VDC | Digital output module, light isolation, non-public use | TMR | 3507E | 16 |
| 48VAC | Digital output module, light isolation, non-public use | TMR | 3608E | 16 |
| 115VAC | Digital output module, optical isolation, public, supervised type | TMR | 3611E | 8 |
| 120VAC | Digital output module, optical isolation, public, supervised type | TMR | 3613E | 8 |
| 24VDC | Digital output module, optical isolation, public, supervised type | TMR | 3614E | 8 |
| 24VDC | Digital output module, optical isolation, public utility, supervision, low consumption | TMR | 3615E | 8 |
| 48VDC | Digital input module, 8 sets of public, self-test | TMR | 3617E | 8 |
| relay output | Often closed, not public | Simple type | 3635R | 32 |
| relay output | Often closed, not public | Simple type | 3636R | 32 |
| 0-5VDC | Analog quantity input module, difference, DC coupling | TMR | 3700 | 32 |
| 0-10VDC | Analog quantity input module, difference, DC coupling | TMR | 3701 | 32 |
| 0-5，0-10VDC | Analog quantity input module, difference, isolation | TMR | 3703E | 16 |
| 0-5，0-10VDC | Analog quantity input module, high-density, DC coupling | TMR | 3704E | 64 |
| thermocouple | Analog quantity input module, difference | TMR | 3706 | 32 |
| thermocouple | Analog quantity input module, difference, isolation | TMR | 3708E | 16 |
| 4-20mA | Analog output module, DC coupling, common loop | TMR | 3805E | 8 |
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