Mitsubishi Electric MELSEC Q Series User Manual page 182

(b) Flowchart
Illustrated below is an example of the sequential processing flow chart.
Wait for 1 tick.
*1 : If the DONE turns to ON after 1000 ticks, stop the processing.
*2 : Though the individual identification information consists of 6 bytes, only 2 bytes can be acquired in one read processing.
To acquire the entire individual identification information, it is necessary to read from the read addresses "0000
"0001 ", "0002
H
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Individual identification information read-out
Acquire PCI bus No.,
PCI device No., and
PCI function No.
Acquire the base address.
Calculate the read register
(EERD) address.
Set the read address.
(Initial value is "0000
Turn the START bit ON.
*1
No
Is DONE bit
turned ON?
Acquire the read-out data.
Is all individual
identification information
acquired?
Complete
".
H
")
H
*2
Yes
No
*2
Yes
Add 1 to the read address.
",
H