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CHAPTER 6 COMMUNICATIONS AMONG CPU MODULES
6
6.1 Communications Using the CPU Shared Memory
6.1.2 Communications by auto refresh (using the multiple CPU high speed transmission area)
The number of points for the system area used by dedicated instructions can be changed to 2K points by checking the
"Advanced Setting" checkbox.
This increases the number of dedicated instructions can be executed simultaneously in one scan.
*1 Set the number of points so that the total points of all the CPU modules will be the following points or less.
• When two CPU modules are mounted: 14K points
• When three CPU modules are mounted: 13K points
• When four CPU modules are mounted: 12K points
*2 Set the number of points so that the total points of all the CPU modules will be 16K points or less (including the points set
for the system area).
Item Description Setting/displayed range
CPU Specific Send
Range
Set the number of send data points for each CPU module.
Setting range: 0 to 14K points
*1
Setting unit: 1K points
System Area
The area used to communicate data by using motion dedicated
instructions. ( Manual for the Motion CPU used)
Set the number of points for the system area used in each CPU
module.
Setting range: 1K or 2K points
Total
The total of number of points set for the “CPU Specific Send
Range" and "System Area" is displayed.
Displayed range: 1 to 16K points
*2
Displayed unit: 1K points