Overview
The ICS Triplex T8891 is a Trusted Speed Output Field Terminal Assembly (SOFTA) designed by Rockwell Automation. Moreover, it delivers 40 channels of 24 Vdc digital input and 8 channels of 24 Vdc pulse train output. Consequently, it provides a reliable interface between field devices and the Trusted TMR control system. Furthermore, its robust design ensures high availability and safe operation in safety-critical industrial applications.
Key Features
- Trusted Speed Output FTA: Converts field digital signals into a format compatible with the Trusted TMR system.
- Triplex Architecture: Integrates three independent processing channels to maintain uninterrupted operation under faults.
- Quad Redundancy: Employs two quad-redundant, fault-tolerant, volt-free contact structures to enhance reliability.
- Rotating Machine Support: Interfaces with up to three T8891 assemblies per single rotating machine group.
- Industry-Standard Connections: Uses 2-wire connections for seamless integration with field devices.
- Self-Diagnostics: Continuously monitors module operation to detect faults and maintain system safety.
- Comprehensive Diagnostics: Provides detailed status indicators for all input and output channels.
Technical Specifications
| Specification | Detail |
|---|---|
| Model | T8891 |
| Series | ICS Triplex Trusted |
| Manufacturer | Rockwell Automation |
| Module Type | Speed Output Field Terminal Assembly (SOFTA) |
| Digital Inputs | 40 channels, 24 Vdc |
| Pulse Train Outputs | 8 channels, 24 Vdc |
| Power Supply | 24 Vdc |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% – 95% non-condensing |
| Certifications | IEC 61508 SIL 3, EN 50128 TUV Rheinland |
| Interface | 2-wire industry-standard field connections |
| Redundancy | Triplex processing with quad-redundant outputs |
Physical Information
- Dimensions: 160 mm × 160 mm × 60 mm
- Weight: 1.2 kg
- Country of Origin: USA
Applications
The ICS Triplex T8891 is ideal for fire and gas control, turbine monitoring, and emergency shutdown systems. Therefore, it ensures fault-tolerant signal processing and maintains high system availability under demanding industrial conditions.
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