EN
stands for ENable; it is an optional block input. When the EN
input is enabled, an ENO
output is set automatically.
If EN
= 0, the block is not enabled; its internal
program is not executed, and ENO
is set to 0.
If EN
= 1, the block's internal program is run
and ENO
is set to 1. If a runtime error is detected, ENO
is set to 0.
If the EN
input
is not connected, it is set automatically to 1.