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Dimensions and Weight
Height (H): 241 mm (9.5 inches)
Width (W): 90 mm (3.6 inches)
Depth (D): 300 mm (11.8 inches)
Weight: 2.71 kg (5.95 lbs)
Environmental Specifications
Operating Temperature:
Minimum: -5°C (23°F)
Maximum: 60°C (140°F)
Operating Humidity: 5% to 95%, non-condensing
ICS T8111C｜Logical memory｜
Overview of TrustedTM TMR Processors
Triple Modular Redundancy (TMR):
Architecture: TrustedTM TMR Processors use a triple redundant, fault-tolerant design to ensure high reliability and error-free operation.
Fault Containment: The design includes six fault containment regions, with each processor containing a 600 series microprocessor, its memory, voter, and associated circuits.
Memory and Power Supply:
Non-Volatile Memory: Used for storing configuration and application programs.
Power Supply: Each processor has its own power supply, which is fed from a dual-redundant 24V DC power supply on the TrustedTM Controller chassis backplane. These power supplies offer short circuit protection and regulated power.
Operation and Fault Tolerance:
Concurrent Operation: Processors operate concurrently to maintain triple modular redundancy (TMR).
2-out-of-3 Hardware Voting: Ensures fault detection and error-free operation by voting on interprocessor exchanges and memory data retrieval.
Inter-Module Communication: Processors communicate via a triplicated Inter-Module Bus mounted on the backplane. Interface modules facilitate communication with I/O subsystems and other equipment.
Fault Management:
Fault Detection: Module faults are automatically detected, time-stamped, and stored for historical review. Transient faults are recorded and cleared automatically without nuisance alarms.
Permanent Faults: Annunciated on the front panel of the module, allowing continued operation of the remaining processors.
Module Replacement: When a processor fails and is replaced, the new module is automatically initialized without the need for external loaders.
Application Programming:
Programming Languages: Supports the full suite of IEC 1131-3 languages for application program development.
Program Control: Users can load, run, stop, single-step, or delete application programs.
Maintenance Keyswitch: A front panel maintenance enable keyswitch allows for the download of application programs.
Key Features Summary
Triple Modular Redundancy: Ensures fault tolerance and high reliability.
Independent Power Supply: Short circuit protected and regulated for each processor.
2-out-of-3 Voting: Maintains fault detection and error-free operation.
Automatic Fault Handling: Transient faults cleared automatically; permanent faults indicated on the front panel.
Seamless Module Replacement: New modules are auto-initialized.
Comprehensive Programming Support: Full suite of IEC 1131-3 languages supported, with detailed program control options.
These features make TrustedTM TMR Processors robust and reliable for critical applications requiring high fault tolerance and continuous operation.
ICS T8111C｜Logical memory｜
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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