1 Year Warranty
Description
Overview
Essential details：T8402 Trusted Dual 24 Vdc Digital Input Module – 60 Channel Ics Triplex
The Trusted® Dual 24 Vdc Digital Input Module interfaces to 60 field input devices. Fault tolerance is achieved through the ‘One-Out Of-Two D’ (1oo2D) voting architecture within the Module for each of the 60 input channels.
Each field input is duplicated and the input voltages are measured using sigma-delta input circuits.
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 dual voltage measurement, coupled with onboard 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.
T8402
Features:
• 60 duplicated 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 mitigate field induced noise.
• Module can be hot-replaced on-line using dedicated Companion (adjacent) Slot or SmartSlot (one spare slot for many Modules) configurations.Front Panel Module status LEDs indicate Module health and operational mode (Active, Standby, Educated).
• TϋV Certified IEC 61508 SIL 3.
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Shipping
Superiority products T8402 Trusted Dual 24 Vdc Digital Input Module – 60 Channel Ics Triplex
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