Rockwell Automation T8423 Trusted TMR 35 - 120 Vdc Digital Input Module - Manual (Page 15)

Trusted
TM
Module T8423
Issue 15 Apr 10 PD-T8423 15
1.8. Sequence of Events Characteristics
The input module automatically measures the field-input voltage, compares the value to the
configurable thresholds, and determines the state of the field input. An event occurs when the input
transitions from one state to another. When an input changes state, the on-board real-time clock value
is recorded. When the TMR Processor next reads data from the input module, the input state and real-
time clock values are retrieved. The TMR Processor uses this data to log the input state change into
the system Sequence of Events (SOE) log. The user may configure each input to be included in the
system SOE log. Full details of SOE are contained in PD-8013 – Trusted
TM SOE and Process
Historian.