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Allen Bradley 1746-NO4I A-B 1746-N04I new with sealed lable

The input channel has a value 7 (Unknown) when: 1. The input channel cannot be correctly measured by two or more slices of the TMR Input Module. 2. The TMR Processor detects a 2oo3 channel discrepancy between the three slices of the TMR Input Module. 3. The Module is simulated (not installed or the TMR Processor cannot communicate with 2oo3 slices of the Module).

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