Mitsubishi Electric MELSEC-Q Series User Manual page 211

(e) Communication and automatic update buffer assignment data
Device Item
Specify assignments of buffer memory size at transient
transmission to local stations and intelligent device
stations.
Specification
(S5) + 0
of 1 to 26
to
*1
(S5) + 77
stations
The default values are send buffer size: 40
size: 40
*1 Configure settings for stations specified as local stations or intelligent device stations in the slave station setting data,
starting from the smallest station number.
*2 The total size of the communication buffers must be within 1000
Specify the size of data to be communicated plus seven words for the communication buffers sizes.
Setting a value outside the setting range results in abnormal end.
*3 The total size of the automatic update buffer must be within 1000
Specify the necessary size for each intelligent device station as the automatic update buffer size.
Setting a value outside the setting range results in abnormal end.
Setting data
(S5)+0 Send buffer size
(S5)+1 Receive buffer size
Automatic update
(S5)+2
buffer size
to
(S5)+75 Send buffer size
(S5)+76 Receive buffer size
Automatic update
(S5)+77
buffer size
, and automatic update buffer size: 80
H
CHAPTER 9 DEDICATED INSTRUCTIONS
Setting range
Communication buffers
0 (no setting),
:
Settings for the
H
first station
40 to 1000
H
0 (word) (no setting)
64 to 4096 (words)
Automatic update buffer
0 (no setting),
:
H
80 to 1000
H
0 (word) (no setting)
Settings for the
128 to 4096 (words)
26th station
, receive buffer
H
.
H
(4096 (word)).
H
(4096 (word)).
H
Set by
*2
H
User
*3
H
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