T8403 Trusted TMR 24 Vdc Digital Input Module 40 Channels

T8403 Trusted TMR 24 Vdc Digital Input Module 40 Channels
Trusted® TMR 24 Vdc Digital Input Module interfaces to 40 field input devices. Fault tolerance is achieved through a triple modular redundancy (TMR) architecture within the module for 40 input channels.
Each electric field input was tripled and the input voltage was measured with a sigma-delta input circuit. The resulting field voltage measurement is compared to a user-configurable threshold voltage to determine the reported field input status. When installing line monitoring equipment in the field, the module detects open and short circuits in field cables. Line monitoring functions include independent configuration for each input channel. Triple voltage measurement, coupled with on-board diagnostic testing, provides comprehensive fault detection and fault tolerance.
The module provides an on-board Sequence of Events (SOE) report with 1 ms resolution. A state change triggers an SOE entry. States are determined by voltage thresholds configured on a per-channel basis.