Description
The ICS Triplex T8191 is a high-integrity 24V DC Digital Output Module designed for the Trusted™ Triple Modular Redundancy (TMR) system. Engineered for safety-critical applications, this module provides 32 isolated output channels, ensuring maximum availability and fault tolerance. By utilizing a TMR architecture, the T8191 performs internal voting and diagnostics to identify and mitigate hardware faults, making it an essential component for Emergency Shutdown (ESD) and Fire and Gas (F&G) systems.
Explore high-performance safety modules at our ICS Triplex T8191 Collection.
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Product Datasheet
Basic Specifications
- Brand: ICS Triplex (Rockwell Automation)
- Model Number: T8191
- Series: Trusted™ TMR
- Number of Channels: 32 (Isolated)
- Output Voltage: 24V DC
- Max Output Current: 0.5A per channel (short-circuit protected)
Physical Characteristics
- Dimensions: 266mm x 31mm x 210mm
- Weight: 1.15 kg
- Chassis Compatibility: Trusted™ TMR Controller Chassis
- Status Indicators: LED display for channel health and module status
Manufacturing & Logistics
- Country of Origin: United Kingdom / USA
- Safety Integrity Level: SIL 3 capable
- Operating Temperature: 0°C to +60°C
- Relative Humidity: 5% to 95% (non-condensing)
Application Fields
The T8191 is primarily used in high-risk environments where system failure is not an option. Common applications include Emergency Shutdown Systems (ESD) in oil refineries, Burner Management Systems (BMS) in power plants, and Subsea Control Systems. It is also frequently deployed in Chemical Processing facilities to manage critical valves and actuators that require validated output signals.
Product Instructions
Installation of the T8191 should only be performed within a powered Trusted Chassis. The module is designed for “hot-plug” insertion, allowing for live replacement without interrupting the process. Once inserted, the system will automatically perform a self-test and synchronize with the active controller. Configuration is managed through the Toolset software environment. Users should ensure that the field wiring is properly fused and that the total current draw across all 32 channels does not exceed the chassis power limits.
Comparison of Similar Models
The T8191 is the standard 24V DC output solution within the Trusted family. In comparison, the T8193 is a higher-current variant designed for driving larger loads, though it may offer fewer channels. The T8111 serves as the digital input equivalent, sharing the same TMR voting architecture but for signal reception. Compared to the older T8190, the T8191 features enhanced diagnostic capabilities and improved thermal management for high-density rack configurations.
Frequently Asked Questions (Q&A)
Q: Does the T8191 support line monitoring? A: Yes, the module provides comprehensive line monitoring to detect open circuits and short circuits in the field wiring, ensuring the integrity of the safety loop.
Q: Can I replace a T8191 while the system is running? A: Yes, the Trusted TMR architecture supports hot-swapping. The redundant nature of the system ensures that the process continues unaffected while the module is being replaced.
Q: What do the LEDs on the front panel indicate? A: The green LED indicates healthy operation, the red LED signals a module fault, and the amber LEDs indicate individual channel activity or specific wiring errors detected by the diagnostics.
