Field Wiring For Digital Input (Dry Contact) - Honeywell ControlEdge 900 platform Hardware Planning And Installation Manual

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
Signal type
With Open Wire Detection
Short circuit detection
Closed contact detection
Open contact detection
Lead Breakage Detection
Input filter
Without Open Wire Detection
Closed contact detection
Description
Dry contact
I > 6mA +/-5%
2.8mA < I < 6mA +/-5%
0.9mA < I < 2.4mA +/-5%
I < 0.9mA +/-5%
First-order low-pass 100Hz
I > 2.8mA +/-5%
117