Mitsubishi Electric Q80BD-J61BT11N, Руководство пользователя

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MELSEC
4 FUNCTIONS
4.3.6 Station-based block data assurance function
The block data assurance per station setting refers to a prevention of separating cyclic
data to new data and old data.
Cyclic data may be separated between new and old data depending on the timing of
the link refresh. This function prevents read/write data per slave station from being
separated between new and old data. Only by setting parameters in the CC-Link Ver.2
utility, it can be prevent separation of the data.
POINT
When using block data assurance per station setting, SW1DNC-CCBD2-B Version
1.17T or later and CC-Link Ver.2 board ROM version 2B or later are required.
(1) The target device of the block data assurance per station setting
The target device of the block data assurance per station setting is link device
(RX/RY/RWr/RWw).
When the block data assurance per station is enabled, the link refresh is
executed between the CC-Link Ver.2 board driver buffer (RX buffer/RY
buffer/RWr buffer/RWw buffer) and the area assigned to each station in the link
device. The area of the link device assigned to each station is the respective
slave station and data will be assured.
Data
assurance
Data
assurance
Data
assurance
Data
assurance
Station
number 1
Station
number 2
Station
number 3
Station
number 4
Station
number 1
Station
number 2
Station
number 3
Station
number 4
CC-Link Ver.2 board
link device
CC-Link Ver.2 board
driver buffer
Link refresh