Activities Manual for Programmable Logic Controllers
Activities Manual for Programmable Logic Controllers
5th Edition
ISBN: 9781259679568
Author: Petruzella, Frank
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 12, Problem 13RQ
Program Plan Intro

Sequencer Load (SQL) instruction:

  • The SQL instruction refers to an output instruction that can capture reference conditions by stepping the machine manually through its operating sequences.
  • It is used for transferring the data from an input source module to the sequencer file.
  • The function of SQL is similar to that of a file-to-word transfer instruction.

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