Overview
The ICS T8403C Trusted TMR 24 Vdc Digital Input Module provides high-reliability monitoring for 40 field inputs using a triple modular redundant architecture. Moreover, it offers configurable line monitoring and sigma-delta voltage measurement to detect open or short circuit conditions efficiently. In addition, onboard diagnostics ensure enhanced operational safety and continuous system integrity.
Functional Highlights
- 40 TMR Input Channels: Each input independently monitored to maximize system reliability.
- Comprehensive Diagnostics: Automatic self-testing detects field wiring faults and operational anomalies.
- Selectable Line Monitoring: Monitors open circuit and short circuit conditions per channel.
- Onboard SOE Reporting: Tracks input state changes with 1 ms resolution for precise event logging.
- Hot Replaceable Module: Allows online replacement without interrupting system operation.
- Status Indicators: Front panel LEDs show input states, field wiring faults, and module health.
- Safety Compliance: TÜV-certified IEC 61508 SIL 3 standard, ensuring high-integrity operation.
Technical Data
| Parameter | Specification |
|---|---|
| Backplane (IMB) Supply Voltage | 20–32 V DC |
| Power Consumption | 20 W |
| Maximum Power Dissipation | 29 W |
| Module Location | T8100, T8300 I/O Module Slot |
| Isolation | Field Common: 50 V reinforced, Channel-to-Channel: None |
| Number of Inputs | 40 |
| Input Impedance | 5 kΩ |
| Measurement Range | -6 to +36 V DC |
| Thresholds | Configurable |
| Maximum Withstanding Voltage | ±50 V DC |
| Safety Accuracy | 0.5 V DC |
| SOE Event Resolution (LSB) | 1 ms |
| Time Stamp Accuracy | ±10 ms |
| Operating Temperature | 0 °C to +60 °C (32 °F to 140 °F) |
| Storage Temperature | -25 °C to +70 °C (-13 °F to 158 °F) |
| Relative Humidity | 10–95%, non-condensing |
| Dimensions (HxWxD) | 266 x 31 x 303 mm (10.5 x 1.2 x 12 in) |
| Weight | 1.18 kg (2.6 lb) |
Typical Applications
The T8403C module is ideal for critical industrial control systems, including turbine monitoring, emergency shutdown, and fire and gas safety systems. For instance, it integrates seamlessly with ICS Triplex TMR processors, ensuring high-availability operation. Moreover, configurable line monitoring enables detailed fault detection for complex field input configurations.
Details
| Weight | 1.18 kg |
|---|
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