24) Which of the following elements does not affect how a ladder logic program is developed? A) The contact type and active state of the input field devices. B) The type, direct or inverse acting, and active state of the output field devices. C) The requirement for current sinking or sourcing inputs and outputs. D) The choice of normally-open and normally-closed instructions for the PLC program

24) Which of the following elements does not affect how a ladder logic program is developed? A) The contact type and active state of the input field devices. B) The type, direct or inverse acting, and active state of the output field devices. C) The requirement for current sinking or sourcing inputs and outputs. D) The choice of normally-open and normally-closed instructions for the PLC program

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter22: Sequence Control

Section: Chapter Questions

Problem 6SQ: Draw a symbol for a solid-state logic element AND.

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