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ID : 1477

I/O Allocation

The number of port for one CC-Link remote device board differs depending on the number of occupied station, and the extension cycles (only for Ver.2.00). Port numbers are also different depending on the allocation mode.

The Number of Link Points per Unit

Specifications
Ver.1.10 Ver.2.00
Extended cyclic setting - 1 time setting 2 times setting 4 times setting 8 times setting
2 stations occupied Remote I/O
(RX,RY)
64 points each 96 points each 192 points each 384 points each
Remote Register
(RWr,RWw)
8 words 16 words 32 words 64 words
3 stations occupied Remote I/O
(RX,RY)
96 points each 160 points each 320 points each 640 points each
Remote Register
(RWr, RWw)
12 words 24 words 48 words 96 words
4 stations occupied Remote I/O
(RX,RY)
128 points each 224 points each 448 points each 896 points each
Remote Register
(RWr, RWw)
16 words 32 words 64 words 128 words
The maximum number of occupied stations 4 stations

Remote I/O RX and RY

Both the Remote I/O-RX and -RY handle the CC-Link system I/O and user I/O by bit-unit. Note that the system area is not available.

Remote Register RWw and RWr

Remote resistors RWw and RWr are capable of processing the ON/OFF state of 16 consecutive I/O points as 16 bits of word data. Four words are allocated per station; therefore a total of 16 words (256 points) are allocated to four stations. In Ver.2.00, up to 128 words can be assigned with extended cyclic setting.

I/O Allocation Table

The port number differs depending on the CC-link version, allocation mode, and extended cyclic setting. See the table below.

CC-Link Ver. Allocation mode Extended cyclic setting I/O Allocation table
Ver.1.10 Standard - Ver.1.10_Standard (PDF:196KB)
RC3 Compatible - Ver.1.10_RC3 compatible (PDF:193KB)
Ver.2.00 Standard 1 time Ver.2.00_Standard_1 time (PDF:196KB)
2 times Ver.2.00_Standard_2 times (PDF:195KB)
4 times Ver.2.00_Standard_4 times (PDF:195KB)
8 times Ver.2.00_Standard_8 times (PDF:195KB)
RC3 Compatible 1 time Ver.2.00_RC3 compatible_1 time (PDF:193KB)
2 times Ver.2.00_RC3 compatible_2 times (PDF:186KB)
4 times Ver.2.00_RC3 compatible_4 times (PDF:193KB)
8 times Ver.2.00_RC3 compatible_8 times (PDF:214KB)

ID : 1477

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