Mitsubishi Electric QD75MH1 User Manual page 342

Chapter 7 Memory Configuration and Data
Process
The QD75MH memory configuration and data transmission are explained in this chapter.
The QD75MH is configured of two memories. By understanding the configuration and
roles of two memories, the QD75MH 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 QD75MH memory .............................................................7- 2
7.1.1 Configuration and roles of QD75MH memory ...............................................7- 2
7.1.2 Buffer memory area configuration..................................................................7- 5
7.2 Data transmission process...........................................................................................7- 8
7 - 1
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