InteliNano-NT Plus, SW version 2.0.1.x, ©ComAp – July 2015
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Normally Open Contact 7.1
Normally Open Contact represents a standard opened contact – no voltage on output terminal and no
passing current from/to binary input terminal. When the contact is opened the controller reads logical 0
(L) on the binary input. When contact is closed the controller reads a logical 1 (H).
In this case 0V on the binary output represents a logical 0 (L) Battery positive voltage on the output
represents a logical 1 (H).
Normally Open Contact – output
Normally Open Contact – input button
Normally Closed Contact 7.2
Normally Closed Contact (inverted) represents a closed contact – positive voltage on output terminal
or passing current from/to binary input terminal. When the contact is opened the controller reads
logical 1 (H) on the binary input. When the contact is closed the controller reads a logical 0 (L).
In this case 0V on binary output represents a logical 1 (H). Battery positive voltage on the output
represents a logical 0 (L).
Normally Closed Contact – output
Normally Closed Contact – input button
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