Transcription of CHAPTER 23 Alarm Event Programming - Cengage
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CHAPTER 23 Alarm Event Programming - Cengage
CHAPTER 23 Alarm & Event Programming Objectives After completing this CHAPTER , you should have the knowledge to: Understand Alarm Programming . Apply the various techniques to capture Alarm and Event information. Many PLC applications require some form of alarming when abnormal conditions or events occur. PLCs are well suited for this task and in fact, many PLC manufacturers provide special instructions designed just for this purpose. Some of these special instructions will be covered later in this CHAPTER . Alerting operating or maintenance personnel of abnormal conditions or problems saves time and increases machine or process up time. When detailed alarming is provided, many problems can be resolved by operators themselves rather than calling a technician to find the problem saving time and increasing productivity.
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