Direct Contact
Direct contacts enable a Boolean operation between a connection line
state and a Boolean variable.
![]() | |
Left Connection | Right Connection |
The state of the connection line on the right of the contact is the logical AND
between the state of the left connection line and the value of the variable associated with
the contact.
Example

(* ST Equivalence: *)
output1 := input1 AND input2;
Provide Feedback