Mitsubishi MELSEC-Q Series User Manual page 186

8 PROGRAMMING
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(7) Automatic update buffer
The automatic update buffer stores automatic update data when performing
transient transmission (communication using the automatic update buffer) with
the AJ65BT-R2.
The automatic update buffer size of the AJ65BT-R2 is specified by a network
parameter.
For more details on the automatic update buffer size settings, see Section 6.2.
[Communication example using the automatic update buffer]
Master station
CPU
1)
RIFR
2)
D
1) Accesses the automatic update buffer for the first module.
2) Stores the data specified by the control data in the CPU device.
For details on the automatic update timing, see AJ65BT-R2 Type RS-232C
Interface Module User's Manual.
Automatic
update
buffer for
the first
module
Automatic update
MELSEC-Q
AJ65BT-R2 (first module)
Buffer memory
Automatic
update
buffer
memory
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