What is AR-721H PIN definition? How to set up door open by push-button?

Serial NO. : H00101001-EN

Date of Editing : 

Questions :  What is AR-721H PIN definition? How to set up door open by push-button?

Problem Solving :

(1) Please refer to the following PIN definition of AR-721H

(2)【Exit by Push Button】setting by command【20】