Triplicated TriBus
Three independent serial links synchronize the Main Processors, move I/O and diagnostic data, and compare output or memory data from the preceding scan.
TRICONEXSafety and critical control systems
TRICON V11.X · Enhanced Performance Main Chassis
ENHANCED PERFORMANCE MAIN CHASSIS
Triconex 8120E Enhanced Performance Main Chassis
Backplane, processor and communication-module mounting structure
SECTION 01
Product Overview
The Triconex 8120E is an Enhanced Performance Main Chassis for Tricon v11.x controllers. It houses the three Main Processors, dual Power Modules, memory-backup batteries and the backplane buses that connect processor, I/O and communication positions inside the controller.
Across the backplane, the 8120E keeps the TriBus, I/O bus and communication bus as separate triplicated paths. With three 3009 Main Processors installed, the TriBus transfers and compares processor data at 1000 Mbps, while dual power rails feed the installed modules so one Power Module or rail can fail without removing the second supply path.
Module placement on the 8120E is divided between COM 1, COM 2 and five logical I/O or communication slots. COM 1 has one physical position, COM 2 and the five logical slots each have two positions, and Unified Communication Modules are restricted to COM 2.
SECTION 02
Technical Specifications
| Technical Item | 8120E |
|---|---|
| Brand | Triconex |
| Product Type | Enhanced Performance Main Chassis |
| Compatible System | Tricon v11.x |
| Power Module Positions | 2 |
| Main Processor Positions | 3 |
| Memory Backup Batteries | 2 |
| COM 1 Positions | 1 |
| COM 2 Positions | 2 |
| Logical I/O / Communication Slots | 5 |
| Physical Positions per Logical Slot | 2, except COM 1 |
| TriBus Speed with 3009 MPs | 1000 Mbps |
| UCM Installation Position | COM 2 only |
| Backplane Bus Systems | TriBus, I/O bus and communication bus |
| Power Distribution | Dual Power Modules and dual power rails |
| Conformal Coating | Standard on Model 8120E |
| I/O Termination Connectors | ELCO connectors on the chassis backplane |
SECTION 03
Bus Systems and Power Distribution
The 8120E backplane separates processor voting, I/O transfer and communication traffic while distributing redundant power to the installed modules.
I/O and communication paths
The I/O bus links processor activity to the five logical module slots, while the communication bus serves the designated communication positions.
Dual power rails
Two Power Modules feed separate rails, so either supply path can continue powering the chassis when the other path is unavailable.
SECTION 04
Main Chassis Slot Organization
The physical positions in 8120E follow the controller role assigned to each logical slot rather than forming one unrestricted module row.
Processor bank
Three dedicated positions keep the three Main Processors aligned with the triplicated controller architecture.
COM slot division
COM 1 provides one position for a TCM, whereas COM 2 provides two positions reserved for UCM installation.
Five logical slots
Each I/O or communication logical slot contains left and right physical positions for an active module and its permitted paired position.
SECTION 05
Frequently Asked Questions
Which Main Processor belongs in a Triconex 8120E?
The 8120E is designed for Model 3009 Main Processors. The three 3009 modules use the chassis high-speed TriBus at 1000 Mbps. Using the specified processor set also avoids forcing a different MP generation into a chassis designed around 3009 hardware.
How many Power Modules does Triconex 8120E accept?
The 8120E accepts two Power Modules connected to dual power rails. A loss of one module or rail leaves the second power path available. Both supply positions should therefore be included when the required chassis power arrangement is reviewed.
Can a UCM be installed in COM 1 of Triconex 8120E?
No. UCMs must occupy COM 2 in the 8120E, while COM 1 is limited to the supported TCM position. The physical slot label should be checked before the communication module is inserted.
How many logical I/O positions are available in Triconex 8120E?
The 8120E provides five logical slots for I/O or communication modules. Each of those logical slots has two physical positions. Left and right physical positions belong to the same logical slot rather than adding five more logical addresses.
Does Triconex 8120E use one shared controller bus?
No. Its backplane carries separate TriBus, I/O bus and communication-bus systems, each serving a distinct data path. This separation lets processor voting, I/O transfer and communication traffic follow their own backplane routes.
What must be checked before placing communication modules in Triconex 8120E?
Confirm whether the module belongs in COM 1, COM 2 or a permitted logical I/O slot. The UCM restriction to COM 2 makes the complete module model important before installation. The module model and the intended controller role should be confirmed together before slot assignment.
SECTION 06
Company Profile
MOORE AUTOMATION
https://www.mvme.cn/Moore Automation coordinates industrial automation enquiries by retaining the requested manufacturer, complete model and quantity through quotation, order handling and dispatch communication. This workflow keeps the Triconex 8120E request separate from similar chassis references while the sales and logistics teams work from one confirmed record.
Model verificationQuotation recordOrder coordinationShipment updates
www.mvme.cn
SECTION 07
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