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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.
- For information about available allocation mode, refer to "Combination of I/O Extension Boards and Allocation Mode "in RC8 CONTROLLER MANUAL.
- For about the way of allocation, refer to "Project Property Setting ".
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 |
896 |
|
| 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.
- For available allocations, see "Combination of I/O Extension Boards and Allocation Mode".
| CC-Link Ver. | Allocation mode | Extended cyclic setting | I/O Allocation table |
|---|---|---|---|
| Ver. 1.10 | Standard | - |
|
| RC3 Compatible | - |
||
Ver. 2.00 |
Standard | 1 time | Ver.2.00_Standard_1 time |
| 2 times | Ver.2.00_Standard_2 times | ||
| 4 times | Ver.2.00_Standard_4 times | ||
| 8 times | Ver.2.00_Standard_8 times | ||
| RC3 Compatible | 1 time | Ver.2.00_RC3 compatible_1 time | |
| 2 times | Ver.2.00_RC3 compatible_2 times | ||
| 4 times | Ver.2.00_RC3 compatible_4 times | ||
| 8 times | Ver.2.00_RC3 compatible_8 times |
- For other port numbers, refer to "I/O Port Map and Allocation ".