Mitsubishi Electric MELSEC Q Series User Manual page 259

(2) Setting
To establish data communication by using auto refresh, use the following functions in Setting/monitoring tools for
the C Controller module to configure settings.
• Project view  "Parameter"  "CCPU Parameter"  <<Multiple CPU settings>>
 <<Communication Area Setting (Refresh Setting)>>
The following shows various setting items in <<Communication Area Setting (Refresh Setting)>>.
1)
2)
No. Item
Change
1) 4 ranges for <<Communication Area Setting (Refresh Setting)>> can be set by "Change screens".
screens
Set auto refresh area points for each CPU module in units of two points (two words).
Up to total 2048 points (2K words)
2) Points
to total 8192 points (8K words)
For a CPU module that does not use the auto refresh, enter "0" in the "Points" field.
When the "Points" field is set, an offset value (HEX) from the first address of the Auto Refresh Area is
3) Start/End displayed.
For the first address of the Auto Refresh Area, refer to the manual for respective CPUs.
*1 : For a Basic model QCPU, up to total 320 points (320 words) can be set for four ranges (Setting 1 to 4) per CPU module.
*2 : When CPU No.1 is a Basic model QCPU, up to 4416 points (4416 words) can be set for all CPUs in a multiple CPU
system.
*3 : For CPU modules without that number assignment also, enter "0" in the "Points" field.
The auto refresh area setting must be identical for all CPUs in the multiple CPU system.
If any difference is identified in their settings, a parameter error will occur.
Remark
For the auto refresh area setting for a programmable controller CPU or Motion CPU, refer to the manual for each CPU
module.
CHAPTER 14 FUNCTIONS USED BY MULTIPLE CPU SYSTEM
3)
Setting
*1
can be set for four ranges (Setting 1 to 4) per CPU module, and up
*2
for all CPUs in a multiple CPU system.
14
*3
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