Which type of SIS is a solid-state device with onboard programmable memory? Conventional PLC
 Safety PLC
 Hardwired system Programmable electronic system

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter17: Commercial And Industrial Air-conditioning Control Systems
Section: Chapter Questions
Problem 13RQ
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Which type of SIS is a solid-state device with onboard programmable memory?

  1. Conventional PLC

  2. Safety PLC

  3. Hardwired system
  4. Programmable electronic system
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