T8403 ICS TRIPLEX T8403 Trusted TMR 24 Vdc Digital Input Module 40 Channel ICS TRIPLEX T8403

T8403 ICS TRIPLEX T8403 Trusted TMR 24 Vdc Digital Input Module 40 Channel ICS TRIPLEX T8403

ICS TRIPLEX T8403

Trusted TMR 24 Vdc Digital Input Module 40 Channel

The Trusted® TMR 24 Vdc Digital Input module interfaces to 40 field input devices. Fault tolerance is achieved through a Triple Modular Redundant (TMR) architecture within the module for each of the 40 input channels.

Each field input is triplicated and the input voltage is measured using a sigma-delta input circuit. The resulting field voltage measurement is compared to user configurable threshold voltages to determine the reported field input state. When a line-monitoring device is installed at the field switch, the module can detect open and short circuit field cables. Line monitoring functions are independently configured for each input channel. The triplicated voltage measurement, coupled with on-board diagnostic testing, provides comprehensive fault detection and tolerance.

The module provides on-board Sequence of Events (SOE) reporting with a resolution of 1 ms. A change of state triggers an SOE entry. States are determined by voltage thresholds that can be configured on a per channel basis.

FEATURES

• 40 Triple Modular Redundant (TMR) input channels per module.
• Comprehensive, automatic diagnostics and self-test.
• Selectable line monitoring per channel to detect open circuit and short circuit field wiring faults.
• 2500 V impulse withstand opto/galvanic isolation barrier.
• On-board Sequence of Events (SOE) reporting with 1 ms resolution.
• Configurable 50/60 Hz digital filtering to eliminate field induced noise.
• Module can be hot-replaced on-line using dedicated Companion (adjacent) Slot or SmartSlot (one spare slot for many modules) configurations.

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