The AFI block implements the
AFI ladder logic
instruction. This block sets its EnableOut signal to false. Use this
block to temporarily disable a rung while you are debugging.
EnableIn— Enable Input
Controls the execution of the block. EnableIn reflects the rung state preceding the block. If the rung state preceding the block is false, EnableIn is false, the block does not execute and the outputs are not updated.
EnableOut— Enable Output
When the block executes, it automatically sets the EnableOut to false. This disables the subsequent blocks on the rung.