TRICON redundant fault-tolerant control systems provide an optimal choice for critical controls that require maximum safety and continuous production in industrial processes. Leading companies in chemical, petroleum, natural gas, paper, and electric energy have successfully used TRICON fault-tolerant control systems to improve safety, increase production, and reduce stops.
TRICON is the most modern fault-tolerant controller based on triple module redundancy (TMR) architecture. It integrates three separate, parallel control systems (each called a branch circuit) and extensive diagnostics into one system, providing highly complete, error-free, uninterrupted process operation with three-by-two voting without a single point of failure leading to system failure.

System module:

Main frame 8100-8 Extension /RXM rack Power supply, 230VAC 8307A
Expansion Rack 8101 Expansion /RXM Rack Power Supply 115VAC/DC 8305A
Remote Extension Rack 8102 Extension /RXM Rack Power Supply, 24VDC 8306A
I/O bus expansion cable (3 sets) 9000 Security Management module (SMM) 4400
I/O communication bus expansion cable (3 sets) 9001 High Speed Channel interface module (HIM) 4508
I/O Empty Slot Plate 8105 Extension /RXM Rack Power Supply, 24VDC 8306A
Empty terminal slot Board 8106 Network Communication Module (NCM) 4328
Main frame power supply, 230VAC 8302A Safety Management Module (SMM) 4400
Main frame power supply, 115VAC/DC 8300A High Speed channel interface module (HIM) 4508
Host rack power supply, 24VDC 8301A communication network module /ISA bus 7518-1
Control system Power supply 120VAC/VDC 8310 Enhanced Intelligent Communication Module (EICM) Non-isolated Type 4108
Control system power 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 NCM 4329
CPU 3007 communicates with Honeywell(UCN) SMM 4409
Communication between CPU 3008 and Foxboro(DCS) ACM 4609
Enhanced TRICONZ Main Processor II, SOE, 1MSRAM 3004 Enhanced Intelligent Communication Module (EICM) Non-Isolated Type 4108
Enhanced TRICONZ Main Processor II, SOE, 2MSRAM 3005 Enhanced Intelligent Communication Module (EICM) Isolation Type 4118

115VAC/DC
Digital input module, isolated, non-public
TMR 3501E 32
115VAC/DC
Digital input module, not public
Simple Model 3531E 32
48VAC/DC
Digital input module, 8 groups of public, self-testing
TMR 3502E 32
48VAC/DC
Digital input module, non-public
Simple Model 3532E 32
24VAC/DC
Digital input module, 8 groups of public, self-testing
TMR 3503E 32
24VAC/DC
Digital input module, non-public
Simple Model 3533E 32
24VAC/48VDC
Digital input module, high density, DC coupling
TMR 3504E 64
24VDC
Digital input module, low limit, self test
TMR 3505E 32
Pulse input
Digital input module, non-public, DC coupled
TMR 3510 8
115VAC
Digital output module, optical isolation, non – public
TMR 3601E 16
120VDC
Digital output module, optical isolation, non – public
TMR 3603E 16
24VDC
Digital output module, optical isolation, non – public
TMR 3504E 16
48VDC
Digital output module, optical isolation, non – public
TMR 3507E 16
48VAC
Digital output module, optical isolation, non – public
TMR 3608E 16
115VAC
Digital output module, optical isolation, public, supervision type
TMR 3611E 8
120VAC
Digital output module, optical isolation, public, supervision type
TMR 3613E 8
24VDC
Digital output module, optical isolation, public, supervision type
TMR 3614E 8
24VDC
Digital output module, optical isolation, public, supervision, low consumption
TMR 3615E 8
48VDC
Digital input module, 8 groups of public, self-testing
TMR 3617E 8
Relay output
Normally closed, not common
Simple Model 3635R 32
Relay output
Normally closed, not common
Simple Model 3636R 32
0-5VDC
Analog input module, differential, DC coupling
TMR 3700 32
0-10VDC
Analog input module, differential, DC coupling
TMR 3701 32
0-5, 0-10VDC
Analog input module, difference, isolation
TMR 3703E 16
0-5, 0-10VDC
Analog input module, high density, DC coupling
TMR 3704E 64
thermocouple
Analog input module, difference
TMR 3706 32
thermocouple
Analog input module, difference, isolation
TMR 3708E 16
4-20mA
Analog output module, DC coupling, common loop
TMR 3805E 8