Designed and engineered for

optimum flexibility

Tricon CX is a flexible SIL3 platform designed for the protection and mitigation of risks in high-hazard industries where safe and continuous operation are imperative. Tricon CX is capable of handling input/ output (I/O) counts of all sizes, from as little as 16 I/O channels in a single system to in excess of 750,000 I/O channels when deployed across 254 nodes. Systems can be centralized in one location, as well as distributed across multiple assets. All modules are fault tolerant and continue to operate even under fault conditions.

The simple mechanical design of Tricon CX makes it quick and easy to design, install, operate and maintain. Only three components are required to configure a Tricon CX system — the chassis, the modules, and the connectors.

Modules and connectors are separate, so modules can be replaced online without disturbing the I/O modules or wiring.

Chassis are designed for panel mounting or 19” mounting. No swing frames are required. Front access only is required — there is no need for rear access to any of the Tricon CX racks, modules, or connectors.

I/O modules and connector boards are keyed to Bprevent incorrect insertion.

Termination panels are supported and can be used with Tricon CX for maximum interoperability.

The integrated 24 Vdc power management and fusing simplifies power distribution, requiring less wiring, less engineering, less testing, and lower overall cost.

Quick and easy to install

Benefits of the Tricon CX design include:

• Minimizes the design effort

• Minimizes the number of different drawings required

• Minimizes wiring time and effort

• Allows for faster project execution

• Simple and easy to maintain

• Lowers the installed cost

• Lowers the capital and operational costs

Tricon CX can be applied to both centralized or distributed applications, put the I/O where it is needed.

Centralized and distributed architectures The flexible system architecture means that you can have physical separation and put safety where you need it. Tricon CX I/O can be located centrally and in remote locations. Star networks

are supported. Fault-tolerant communications ensure integrity and continuous operation even in the unlikely event of a fault condition.

Peer-to-peer communications

Up to 254 nodes can be networked together on a fault-tolerant, SIL3-certified, peer-to-peer network.

The use of peer-to-peer communications reduces the need for hard-wired interlocks between safety systems, reducing the associated cable and installation costs.

Central system management

Programming, diagnostic information, and sequence of event (SOE) information can all be managed from a central location, no matter where the Tricon CX systems are located or distributed making it easier and more efficient to manage

your safety systems.

Support for all applications

Tricon CX systems can be used for all major safety

applications:

• Emergency Shutdown

• Fire and Gas detection

• High Integrity Pressure Protection

• Burner management

• Boiler protection

• Turbine protection

The ability to use the same platform for multiple applications requires less overall hardware, less design effort, reduced capital and operational costs, less training costs, delivers faster start-up, and future-proof your investment.

The flexible system architecture means less network infrastructure, less wiring, less engineering, less documentation, and lower overall capital expenditure.

Optimize the plant design — put I/O where you

need it

• Minimize cable and installation costs

• Compact and lightweight form factor are ideal for applications where space and weight are at a premium

• Minimize design effort

• Deliver faster plant start-up

• Minimize the hardware required

• Reduce capital and operational costs

• Future-proof investments

Delivering continuous operation

The TÜV-certified Tricon CX SIL3 system delivers the highest levels of safe operation and maximum plant availability throughout the operating life of the plant.

Tricon CX combines the best of the world’s most proven Tricon and Trident platforms and can be used in both low- and high-demand modes. Inherent high integrity and high availability is built into the systems. Diagnostics and redundancy

management are transparent to the user. The system adapts and maintains SIL3 even under fault conditions.

The TMR design ensures no single point of failure. The 2oo3D (two out of three diagnostic) architecture and voting eliminates spurious trips, increases plant uptime, extends plant maintenance cycles, and lowers operational costs.

Unlike other safety systems, voting and diagnostics are built in — no user logic is required. There is no need for redundant I/O modules to achieve fault tolerance. The use of a hot spare is not required to increase mean time to failure.

Each Tricon CX system contains three physically separate main processor modules that continue to operate even under fault conditions. The system supports adaptive voting 3-2-1-0 or 3-2-0. Processor modules can be replaced online without stopping operation. 

Each Tricon CX system can accommodate up to four communications modules in two redundant pairs. Each module is physically separate, so can be replaced online if required without halting operations.

Each I/O module is triplicated by design. Redundant I/O modules are not required to achieve fault tolerance. I/O modules are fault tolerant and continue to operate even under fault conditions. Modules can be replaced online, switch over is automatic, and redundancy management is transparent.

Features of the Tricon CX design include:

• High integrity and high availability are built-in

• Diagnostic and redundancy management is transparent to the user

• Maintains SIL3 even under fault conditions

• Redundant I/O modules are not required to achieve fault tolerance

• Processor, communications, and I/O modules can be replaced online without halting operations

• Modifications can be made without stopping operations

Tricon CX at a glance

8120X Main chassis

8131X I/O chassis

3009X Main processor, 256 Mb

4355X Triconex Communication Module

4610X Unified Communication Module

4701X I/O bus interface module, RS-485 Serial-Serial

3506X Supervised digital input module 32 channels, 24 VDC Supervised, TMR

3626X Supervised digital output module 32 channels, 24 VDC, Supervised, commoned, TMR

3722X Analog input module 32 channels, 0 – 5 VDC, Fast, No-HART, TMR

3723X Analog input module 32 channels, 0 – 5 VDC, HART, TMR

3809X Analog output module 16 channels, 0 – 23 mA, HART, TMR

3902X Universal

3506X DI, Supervised 9563X-910 9563X-910

3626X DO 9662X-610 9671X-610, 24 VDC

3722X Al 9760X-210, 2-Wire 4-20 mA, 0–5 VDC

9761X-210

9765X-210, 3-Wire, 4-20 mA, 0–5 VDC

9771X-210

3723X Al + HART 9760X-210, 2-Wire 4-20 mA, 0–5 VDC 9789X-610, 4-20 mA

3809X AO + HART 9890X-610 n/a

3902X Universal I/O with HART 9960X-610 n/a