Scenario:
Elevator control of multiple cabs in high rise building. Current access control system uses groups of IP-based relay boards to activate the various floor call buttons a resident can go to after they swipe their valid credential.
*** **** ****** ** ********* ** a ********** **** *** ******* ** a ********** **** ** ******* **** goes ****, *** ** ** ****** a *** *** *** ****** ** know *** ****** ***** **********. *** heavy ******* ** **** ** ** elevator ******* *********** **** ******* ** the ****** ******* *** ****** ******** (Windows ***** **). **** *** ************ to *** **-***** ***** ****** ***** relays ** ****, ***** ** **** tell *** ******** ******** ***** ***** buttons *** ****** *** **** ******.
** **** ******* ** ** ****** off, ***** *****, ** **-****** *** any ****** **** ** * ******** update, *** ******** ******** **** *******. There *** ******* ******** *** ** that ************* **-***** **** *** ** starts ** *** ****** (****** *****) the ******** ******** ** ***** ******* again, *** *** **** ** * failsafe ** ********** **** ** *** acceptable.
******** ******** *** ****** * *** more ******** *** ***** ** * learning ***** ***** **** ** *** as ****** * *** **** ** controlling * **** **** ** **** with * *:* ************ ******* *** reader *** *** ****.
***** ******** ******* ******* ****** ***** card ****** ****** ******* * ******** and **** ** ******* *** ** and ***** **** (** ***** ** some ******) ** * **** **** mode ** ***'* **** ** * Windows ** ** ****?
****** ** *******
** ** *****: ** *** ****** system **** ****, *** ******** **** not ******* ******* *** **** ******* remain ***?