6F3B0250
5. Operating System Overview
5.3 Scanning
The flowchart below shows the basic internal operations performed by the T1/T1S from the time power is turned on through program execution. As the diagram shows, executing a program consists of continuous scanning operations. One scan is a cycle starting with the
Scan
Power ON
Hardware check
Initial load
Register/device
initialization
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Scan cycle
Basic Hardware and Function 87
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