12 MULTIPLE CPU DEDICATED INSTRUCTIONS
12.1 Another CPU Module Access Instructions
1403
12
Number of available blocks
Another CPU module access instructions use the system area in minimum units of blocks, each consisting of 16 words.
The following table lists the numbers of blocks available for another CPU module access instructions.
The following figure shows how blocks are used in a multiple CPU system consisting of three CPU modules.
Maximum number of data points that can be read or written
The maximum number of data points that can be read or written by an instruction depends on the number of CPU modules in
a multiple CPU system configuration.
Number of blocks used by instructions
The number of blocks used by instructions depends on the number of read/write data points. The following table lists the
numbers of blocks used by instructions.
Number of CPU modules
Maximum number of blocks
2
599
3
299
4
199
Number of CPU
modules
Maximum number of data points that can be read
Maximum number of data points that can be written
2 modules
8192 point
8192 point
3 modules
4096 point
4096 point
4 modules
2048 point
2048 point
Reading/
writing
Number of blocks
Example
Read
Number of blocks used by instructions = (21 + number of
read data points)
16
• When the number of read data points is 100
Number of blocks used by instructions = (21 + 100)
16 = 7 [blocks]
Write
Number of blocks used by instructions = (19 + number of
write data points)
16
• When the number of write data points is 100
Number of blocks used by instructions = (19 + 100)
16 = 7 [blocks]
Send area
(to CPU No.2)
299
blocks
299
blocks
Receive area
(from CPU No.1)
Send area
(to CPU No.3)
Receive area
(from CPU No.1)
299
blocks
Receive area
(from CPU No.2)
299
blocks
Send area
(to CPU No.1)
Send area
(to CPU No.3)
Receive area
(from CPU No.2)
299
blocks
Receive area
(from CPU No.3)
299
blocks
Send area
(to CPU No.1)
Receive area
(from CPU No.3)
Send area
(to CPU No.2)
299
blocks
299
blocks
299
blocks
299
blocks
299
blocks
299
blocks
CPU No.1 system area
CPU No.2 system area
CPU No.3 system area
Data send area from CPU No.1 to CPU No.2 and No.3
Data send area from CPU No.2 to CPU No.1 and No.3
Data send area from CPU No.3 to CPU No.1 and No.2
Содержание MELSEC iQ-R Series
Страница 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
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Страница 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Страница 34: ...32 MEMO ...
Страница 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Страница 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Страница 204: ...202 5 SEQUENCE INSTRUCTIONS 5 3 Output Instructions Operation error There is no operation error ...
Страница 470: ...468 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 472: ...470 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 479: ...6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions 477 6 Operation error There is no operation error ...
Страница 504: ...502 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 518: ...516 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 520: ...518 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 754: ...752 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 756: ...754 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 758: ...756 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 760: ...758 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 895: ...7 APPLICATION INSTRUCTIONS 7 16 Ramp Signal Instruction 893 7 Operation error There is no operation error ...
Страница 917: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 915 7 Operation error There is no operation error ...
Страница 919: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 917 7 Operation error There is no operation error ...
Страница 1415: ...13 SFC PROGRAM INSTRUCTIONS 13 1 SFC Control Instructions 1413 13 Operation error There is no operation error ...
Страница 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Страница 1795: ...25 TYPE CONVERSION FUNCTIONS 25 1 Converting BOOL to WORD 1793 25 Operation error There is no operation error ...
Страница 1805: ...25 TYPE CONVERSION FUNCTIONS 25 10 Converting WORD to DINT 1803 25 Operation error There is no operation error ...
Страница 1819: ...25 TYPE CONVERSION FUNCTIONS 25 21 Converting INT to DWORD 1817 25 Operation error There is no operation error ...
Страница 1950: ...1948 32 STRING FUNCTIONS 32 2 Extracting String Data From the Left Right Operation error There is no operation error ...
Страница 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Страница 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Страница 2082: ...2080 APPX Appendix 6 Process Control Program Examples 129 Set the default value of the loop tag ...
Страница 2093: ...APPX Appendix 7 List of Loop Tag Memory Areas Used by Process Control Instructions 2091 A MEMO ...
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