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6 PARAMETER SETTING
MELSEC-QnA
6.1.2 Procedure from parameter setting to data link start
Follow the procedure below:
Buffer memory
Buffer memory
Programmable controller CPU
SET YnA
Programmable controller CPU
Master station
Master station
Programmable controller CPU Master station
Buffer memory
2
EPROM
Parameter
information
area
Internal
memory
By the data-link start request by
buffer-memory parameters (Yn6),
the contents of the "parameter
information area" in the buffer
memory is written to internal
memory. The data link is then
automatically started.
SET Yn8
Debug complete?
NO
YES
Programmable controller CPU Master station
Buffer memory
2
EPROM
TO
Parameter
information
area
Internal
memory
Data (number of connected
modules, number of retries, etc.)
is written to the master station's
"parameter information area
(address 0
H to 5FH)" in the buffer
memory.
By the parameter registration
request to the E
the contents of the "parameter
information area" in the buffer
memory is written to E
2
PROM (YnA),
2
PROM.
2
EPROM
Parameter
information
area
Internal
memory
2
EPROM
Parameter
information
area
Internal
memory
SET Yn6
2
2
By the data-link start request
(Yn8), the parameter information
to the internal memory.
Data link is then started
automatically.
from the E PROM parameter
stored in E PROM is transferred