Met asys Compani on Tech nica l Manua l 628. 1 Points Section Technical Bulletin - DISCONTINUED Issu e Date 1193 © 199 3 Jo hnso n C ontr ols, Inc. 1 Order No. 628.1-180 Introduction Page 3 Theory of Operation *3 AO Point Definition 7 Desi gn Consi derati ons *8 AO Point Screen and Parameters *9 Group Parameter s *11 Analog Output (AO) Point Software * Indicates those sections where changes have occurred since the last printing.