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Field wiring for Digital Input (Dry Contact)
A UIO channel configured as a Digital Input. See the following table
for DI specification:
Table 5-17: UIO for DI(Dry Contact) Specifiction
Item Description
Signal type Dry contact
With Open Wire Detection
Short circuit detection I > 6mA +/-5%
Closed contact detection 2.8mA < I < 6mA +/-5%
Open contact detection 0.9mA < I < 2.4mA +/-5%
Lead Breakage Detection I < 0.9mA +/-5%
Input filter First-order low-pass 100Hz
Without Open Wire Detection
Closed contact detection I > 2.8mA +/-5%
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