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Chapter 7 Memory Configuration and Data Process
Chapter 7 Memory Configuration and Data
Process
The QD77MS memory configuration and data transmission are explained in this chapter.
The QD77MS is configured of four memories. By understanding the configuration and
roles of two memories, the QD77MS internal data transmission process, such as "when
the power is turned ON" or "when the PLC READY signal changes from OFF to ON"
can be easily understood. This also allows the transmission process to be carried out
correctly when saving or changing the data.
7.1 Configuration and roles of QD77MS memory .............................................................7- 2
7.1.1 Configuration and roles of QD77MS memory................................................ 7- 2
7.1.2 Buffer memory area configuration.................................................................. 7- 5
7.2 Data transmission process........................................................................................... 7- 8
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