Programmable Logic Controllers - With Access
5th Edition
ISBN: 9781259933523
Author: Petruzella
Publisher: MCG
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Chapter 9, Problem 16RQ
Program Plan Intro
Temporary end instruction:
- The Temporary end (TND) instruction refers to a diagnostic instruction.
- It is used for troubleshooting.
- It is used whenever the amount of logic scanned must be changed to debug a
program . - The TND command must be placed on the right side of the rung.
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What would cause the current instruction to be reset in the event of a problem?
what it means to “fetch” an instruction?
What would cause the current instruction to be reset if there was a malfunction?
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Programmable Logic Controllers - With Access
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- The time it takes to perform the fetch instruction and decode instruction steps is called the execution time. True or false?arrow_forwardA(n) ____________________ instruction copies data from one memory location to another.arrow_forwardA(n) ________________ instruction always alters the instruction execution sequence. A(n) ______________ instruction alters the instruction execution sequence only if a specified Condition is true.arrow_forward
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