Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 103

3 SPECIFICATIONS
Frequently used link devices
(read/write always required)
Less frequently used link devices
(read/write only as needed)
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(b) Using direct access to link devices
The refresh time can be reduced by directly accessing link devices that are
less frequently used by the host and excluding them from the refresh range.
(Refer to Section 7.1)
CPU
Network module
Link refresh
Direct access
Link refresh
Direct access
MELSEC-Q
Range of
sending
to other
stations
Range of
receiving
from other
stations
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