Triconex 3504E 24/48Vdc Digital Input

TRICONEX TRIPLE MODULAR REDUNDANCY

Tricon operation is based on the principle of safety and high plant availability, which identifies and

compensates for failed control system elements and allows on line replacement while continuing

its assigned task without interrupting the controlled process. Fault Tolerance is achieved through TMR technology.

TMR employs three isolated, parallel control systems and extensive diagnostics integrated into one

system. The Tricon system uses two-out-of-three (2oo3) voting to provide high integrity, error-free,

uninterrupted process operation with no single point of failure. Setting up applications is simplified

with the Tricon, because the TMR system operates as a single control system from the user’s point of

view. The extensive diagnostics are inherent and transparent to the programmer.

Use of the Tricon continues to expand into new industries and applications as customers require

increased system safety and/or high availability. Today, Invensys has delivered and installed Triconex

safety system solutions in over 70 countries, providing increased safety and high process uptime.

Applications

• Emergency Shutdown (ESD)

• Burner Management Systems (BMS)

• Fire and Gas Systems (F&G)

• High Integrity Pressure Protection systems (HIPPS)

• Turbo Machinery Controls (TMC)

Basic Termination Panels

Basic termination panels are a low-cost means of connecting field wiring to a Tricon. Basic

termination panels allow you to marshal field signals in a separate enclosure up to 99 feet (30

meters) from a Tricon chassis.

A basic termination panel consists of a PCB—with panel connector and terminal blocks—

mounted on a DIN rail-compatible plastic housing. The housing snaps onto mounting rails in

accordance with DIN 50 022. Current-to-voltage conversion resistors are also mounted on

analog input panels configured for current input. You must provide any other components

required for your application.

The panel connector and terminal blocks are directly interconnected via the PCB. The

compression terminals on the terminal blocks are designed for use with 24- to 12-gauge (0.3

mm2 to 2.1 mm2) wiring.

Refer to Appendix B, Fanned-Out Cable Pinouts for signal labels and connector pin numbers.

Each signal label indicates the corresponding screw terminal on the termination panel. The

panel connector’s pin numbers match those on the Tricon backplane’s connector.

A basic termination panel is packaged with a cable that connects between a Tricon chassis

backplane and the basic termination panel. A female connector on one end of the cable is keyed

to match the male connector on the Tricon backplane. A male connector on the opposite end of

the cable is keyed to match the male connector on the termination panel.

Basic termination panels are available in these configurations:

• Digital input panels

• Digital output panels

• Relay output panels

• Analog input panels

• Analog o

utput p

anel

• Pulse input panels

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• Pulse totalizer input panels