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PLC Siemens Test questions with correct answers

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PLC Siemens Test questions with correct answers

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PLC Siemens Test questions with correct
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3 Code Blocks (Program Blocks) used in Siemens - answer-Organization Block,
c c c c c c c c c c


Function, Function Block
c c c




Difference between FC (Function) and FB (Function Block) - answer-FC uses the
c c c c c c c c c c c


address of the given parameter, while an FB copies its parameters to/from an
c c c c c c c c c c c c c


associated data block
c c c




3 Memory Areas used by Siemens PLC - answer-Load Memory, Work Memory,
c c c c c c c c c c c


Retentive Memory
c c




Which memory areas are volatile and which are non-volatile? - answer-Work Memory is
c c c c c c c c c c c c


Volatile, Load Memory and Retentive Memory are Non-Volatile
c c c c c c c c




Which memory area contains hardware configuration data and the user program? -
c c c c c c c c c c c


answer-Load Memory
c c




Which memory area is used by the program execution? - answer-Work Memory
c c c c c c c c c c c




Which memory area is user defined? - answer-Retentive Memory
c c c c c c c c




Siemens PLC Tags are synonymous with which Allen-Bradley CompactLogix tags? -
c c c c c c c c c c


answer-Controller Tags
c c




Siemens Local Tags are synonymous with which Allen-Bradley CompactLogix tags? -
c c c c c c c c c c


answer-Program Tags
c c




A program cycle OB is similar to which task in CompactLogix? - answer-Continuous
c c c c c c c c c c c c


Task
c




An interrupt OB is similar to which task in CompactLogix? - answer-Event Task
c c c c c c c c c c c c




Which Siemens program block uses an instance data block to store data? - answer-
c c c c c c c c c c c c c


Function Bock c




Which program block is the interface between the operating system and user program? -
c c c c c c c c c c c c c


answer-Organization Block
c c

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