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3 SPECIFICATION
MELSEC-QnA
(b) When module reset request (Yn4) is turned on, module ready (XnF) turns off
and initialization is executed.
When the initialization is completed abnormally, module ready (XnF) does not
turn on, but module error (Xn0) turns on.
(Error startup after reset)
Module ready (XnF)
Module error (Xn0)
Module reset acceptance
complete (Xn4)
Module reset request
(Yn4)
OFF
Initialization
(6) Data link startup by buffer memory parameter normal completion: Xn6
Indicates normal completion in data link startup requested by the buffer-memory
parameter data link startup request (Yn6).
(a) When (Yn6) is turned on, the parameter contents at the (address 0
H to 5FH)
in buffer memory are checked. If the check result is normal data link is started
automatically.
(b) When data link is normally started, the signal for "data link startup by buffer-
memory parameter normal completion" (Xn6) is turned on.
(c) (Xn6) is turned off by turning off (Yn6).
OFF
0
Parameter setting status (Xn2)
Data link startup by buffer-memory
parameter normal completion (Xn6)
Host station parameter status
(SW0068)
Buffer-memory parameter
data link startup request (Yn6)
Start
processing