Product Overview
The ICS Triplex T8461 Trusted TMR Output Module provides fault-tolerant control for 40 field devices. Moreover, it uses TMR architecture and onboard diagnostics to detect stuck-on/off and open/short circuit faults. In addition, the module logs Sequence of Events (SOE) at 1 ms resolution, ensuring accurate event tracking for high-integrity applications. Its design supports hot replacement and isolated power groups for safe and uninterrupted operations.
Key Functional Benefits
- 40 TMR Output Channels: Each channel is independently monitored for reliability.
- Comprehensive Diagnostics: Automatic self-tests ensure system performance and fault detection.
- Automatic Line Monitoring: Detects both open circuit and short circuit failures across outputs.
- SOE Reporting: Tracks events at 1 ms resolution with ±10 ms timestamp accuracy.
- Hot Replacement: Supports online replacement using Companion Slot or SmartSlot configurations.
- Front Panel LEDs: Indicate output status, wiring faults, and module health.
- Isolated Power Groups: Outputs powered in groups of eight for enhanced safety.
- TÜV IEC 61508 SIL 3 Certified: Ensures high safety integrity for critical industrial environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Backplane (IMB) Supply Voltage | 20–32 V DC |
| Field Supply Voltage | 18–58 V DC |
| Maximum Current | 30 A |
| Power Dissipation | 26 W (system), 36 W (field max) |
| Number of Outputs | 40 |
| Number of Power Groups | 5 (8 channels per group) |
| Output On-State Resistance | 1.6 Ω |
| Maximum Continuous Current | 0.75 A per channel |
| Minimum On-State Load Current | 25 mA |
| Current Measurement Range | 0–1.35 A ±5% / ±5 mA |
| Voltage Measurement Range | 0–58 V DC ±2 V DC |
| Maximum Withstanding Voltage | -1 V to +60 V DC |
| Channel-to-Channel Crosstalk | <1% |
| Maximum Load Capacitance | 500 μF |
| Output Short Circuit Protection | Electronic latching |
| SOE Event Resolution | 1 ms |
| Time Stamp Accuracy | ±10 ms |
| Operating Temperature | 0–60 °C |
| Storage Temperature | -25–70 °C |
| Relative Humidity | 10–95%, non-condensing |
| Dimensions (H×W×D) | 266 × 31 × 303 mm (10.5 × 1.2 × 12 in) |
| Weight | 1.3 kg (2.7 lb) |
System Integration & Applications
The T8461 module integrates seamlessly with TMR I/O modules and processors, therefore supporting:
- Industrial automation requiring highly reliable digital outputs.
- Systems requiring hot-replacement without downtime.
- Field devices operating at 24V DC or 48V DC with isolated power distribution.
- Environments demanding SIL 3 compliance and enhanced diagnostics.
Moreover, its robust SOE reporting and fault-tolerant architecture ensure safe operations in process-critical industrial systems.
Details
| Weight | 1.3 kg |
|---|
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