Triconex 8110 High-Density Main Chassis

Triconex Chassis Options

A Tricon system is made up of one or more chassis assemblies that contain I/O and communication modules. The first chassis of a system is called the Main Chassis (Model 8110). To enlarge a system, Expansion Chassis (Model 8111 or 8121) and/or RXM Chassis (Model 8112) can be added.

The triplicated I/O bus transfers data between the I/O modules and the Main Processors at 375 kilobits per second. The communication bus runs between the Main Processors and the communication modules at 2 megabits per second.

8110 Chassis Mechanical Specifications

Overall Dimensions: 19 in wide by 22.75 in high by 17.75 in deep (48.3 cm by 57.8 cm by 45.1 cm)

Chassis Fabrication: Black zinc-plated and welded cold-rolled steel Approximate Weights

Main or Expansion Chassis: 54.0 lbs. (24.5 kg.)

Power Module: 7.2 lbs. (3.3 kg.)

Main Processor: 4.7 lbs. (2.1 kg.)

I/O Module: 4.7 to 6.0 lbs. (2.1 kg. to 2.7 kg.)

HART Interface Module: 4.8 lbs. (2.2 kg.)

Communication Module: 5.0 lbs. (2.3 kg.)

16-point Termination Panel: .09 lbs. (.04 kg.)

32-point Termination Panel: 2.1 lbs. (.95 kg.)

Keyswitch for System Control

The Main Chassis has a four-position key switch which controls all the

chassis in the system. The key switch setting is readable by Tricon controllers, TriStation 1131 software, and the control programs. Switch settings are RUN—Normal operation with read-only capability. The Main Processors execute the previously-loaded control program. Attempts to modify program variables by TriStation 1131, Modbus masters or external hosts are rejected. However, a control program may call gated access functions to enable external host writes during a designated window of time.

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