PROGRAMMABLE LOGIC CONTROLLERS QUESTIONS WITH COMPLETE SOLUTIONS

PROGRAMMABLE LOGIC
CONTROLLERS QUESTIONS WITH
COMPLETE SOLUTIONS


Thez_______zwillzaccountzforzmostzofztheztotalzmemoryzofzazgivenzPLCzsystem.z-zans--
✔✔Userzprogram

ThezstatuszbitzofzswitcheszandzpushbuttonszconnectedztozazPLCzstoredzinzthe?z-zans--
✔✔Inputzimageztablezfile

ThezmemoryzorganizationzofzazPLCzcanzbezdividedzintozwhatztwozbroadzcategories?z-
zans--✔✔Programzandzdatazfiles



Thezscanzisznormallyzazsequentialzprocesszof?z-zans--
✔✔Readingzthezstatuszofzinputs,zevaluatingzthezcontrolzlogic,zandzenergizingzorzde-
energizingzthezoutputs

Whichzofzthezfollowingziszazfactorzinzdeterminingztheztotalzscanztime?z-zans--✔✔-
Lengthzofzthezladderzprogram
-Typezofzinstructionszexecuted
-Speedzofzthezprocessor

IfzazPLCzhaszaztotalzscanztimezofz10mszandzhasztozmonitorzazsignalzthatz_______,zthenzthe
zcontrollerzmayznotzdetectzthiszchange.z-zans--✔✔Changeszstateztwicezinz5ms



Theztwoztypeszofzpatternszusedztozaccomplishzthezscanzfunctionzare?z-zans--
✔✔Horizontalzandzvertical

Az_______zscanzpatternzexamineszinstructionszrungzbyzrung.z-zans--✔✔Horizontal

Thezactualzscanztimezis?z-zans--✔✔-CalculatedzandzstoredzinzthezPLC'szmemory
-ComputedzeachztimezthezENDzinstructionziszexecuted
-Theztimeztakenztozscanzinputszandzoutputszandzexecutezthezuserzprogram

WhichzofzthezfollowingzstandardzPLCzprogrammingzlanguagesiszazgraphicalzlanguage?z-
zans--✔✔-Functionzblockzdiagram

-zladderzdiagram