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16 MULTIPLE CPU SYSTEM FUNCTION
16.4 Data Communication Between CPU Modules
Setting the data communication with fixed scan communication area
This section describes the setting for making the data communication with fixed scan communication area.
■
Setting whether or not it should be used
To communicate data with the fixed scan communication area, "Enable" must be set to "Fixed Scan Communication
Function".
[System Parameter]
[Multiple CPU Setting]
[Communication Setting between CPUs]
[Fixed Scan
Communication Function]
Window
Displayed items
■
Setting fixed scan communication area
This menu item sets up the range of send area for each CPU in the fixed scan communication area (the refresh area and the
total of areas used for direct access communication). Only the fixed scan communication area can be changed with the
parameter settings. The other areas are not configurable.
[System Parameter]
[Multiple CPU Setting]
[Communication Setting between CPUs]
[Fixed Scan
Communication Area Setting]
Window
Displayed items
*1 The max area size that can be set through setting of the fixed scan communication area differs depending on the fixed scan
communication cycle.
Item
Description
Setting range
Default
Fixed Scan Communication
Function
Specify whether or not the fixed scan communication function
should be used.
• Not Use
• Use
Not Use
Item
Description
Setting range
Default
Total [K Word]
View the total value.
Entire system: 0 to 24K words
PLC No. 1 [Start XY: U3E0]
Set the send area size for CPU No.1.
0 to 12K words
0K word
PLC No. 2 [Start XY: U3E1]
Set the send area size for CPU No.2.
0 to 12K words
0K word
PLC No. 3 [Start XY: U3E2]
Set the send area size for CPU No.3.
0 to 12K words
0K word
PLC No. 4 [Start XY: U3E3]
Set the send area size for CPU No.4.
0 to 12K words
0K word
Fixed scan communication cycle
Max area size that can be set through setting of the fixed scan
communication area
0.10ms
12K points
0.15ms
20K points
Except for shown above
24K points
Содержание MELSEC iQ-R-R00CPU
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Страница 151: ...9 MONITOR FUNCTION 9 1 Real Time Monitor Function 149 9 MEMO ...
Страница 323: ...18 SEQUENCE SCAN SYNCHRONIZATION SAMPLING FUNCTION 321 18 MEMO ...
Страница 330: ...328 20 ROUTING SETTING 20 3 Precautions MEMO ...
Страница 423: ...26 BASIC CONCEPT 26 8 State Transition of the Redundant System 421 26 MEMO ...
Страница 524: ...522 30 MAINTENANCE AND INSPECTION FOR A REDUNDANT SYSTEM 30 1 Module Replacement in the Redundant System MEMO ...
Страница 1009: ...APPX Appendix 14 List of Available SQL Commands for CPU Module Database Access Function 1007 A MEMO ...
Страница 1014: ...1012 APPX Appendix 15 Added and Enhanced Functions MEMO ...
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