Assertion: rung | /r/HasProperty | false
Facets:
value: on the initial scan
type: TEMPORAL
value: for an output command
type: PURPOSE
Source sentences:
text: Like the other timers, the Enable and Timer Timing bits work the same way, Enable is ON when the rung is TRUE and OFF when the rung is FALSE.
text: The GEQ command is placed on the left side of the rung to determine if a rung will be true or false for an output command.
text: At startup, when the processor is switched from program mode to the run mode to the run mode the operation depends on the rung being true or false on the initial scan.
text: Rung 2 - NO 1000 is false, NO 1001 remains true, NC 1001 is false, NC 1000 turns true.
text: Rung 3 - NO 1001 is false therefore OUT 500 becomes false.
text: If the rung is false the JMP instruction is skipped, causing no jump in the programming ladder logic.