Specifications

Ladder Logic Examples
Checker-defined Results
The All Pass rung ANDs together the output of all Inspection Sensors. Only
if all of the contacts are closed is the rung true. In this example, the rung is
false because at least one sensor (Bright1) is false.
The Any Fail rung assigns the built-in All Pass rung to an inverted contact.
This contact only closes when the All Pass answer is false:
Logically, the Any Fail rung is equivalent to a rung which ORs together
inverted contacts for each of the Inspection Sensors:
User-defined Results
To AND together the results of multiple sensors, create a contact for each
sensor on a single rung. Only when all the sensors are true is the rung
true.
To OR together two or more sensors, create a nested OR branch for each
sensor:
You can combine OR and AND operations on a single rung. This rung is true
if either Pattern1 or Pattern2 is true and Bright1 is true: