Chapter 7 Memory Configuration and Data Process

7

The QD75 memory configuration and data transmission are explained in this chapter.

The QD75 is configured of two memories. By understanding the configuration and roles of two memories, the QD75 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 QD75 memory

7- 2

 

7.1.1

Configuration and roles of QD75 memory

7-

2

 

7.1.2

Buffer memory area configuration

7-

5

7.2

Data transmission process

7- 6

7 - 1

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Mitsubishi Electronics QD75D, QD75P user manual Memory Configuration and Data Process