The NOP block implements the
NOP function. The block
acts as a placeholder. It performs no operation on enable or disable.
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 all the subsequent blocks on the rung.