Block Guarantee Of Cyclic Data Per Station - Mitsubishi LJ61BT11 User Manual

8.2.9 Block guarantee of cyclic data per station

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This function allows guaranteeing the consistency of the cyclic data for each slave
station according to the parameter setting.
To ensure the consistency of data exceeding two words, use this function.
When this function is not used, cyclic data may be separated into new data and old
data in 2-word (32-bit) units, depending on the auto refresh timing.
Set this function to master stations, local stations and standby master stations.
The following example shows the range in which data of remote register RWw is
secured when this function is set in the remote net Ver.1 mode.
Programmable
controller CPU
Device
W
For slave station number 1 that has setting of "4 stations occupied" in the remote net
Ver.1 mode, remote register data in the range RWw0 to RWwF are guaranteed.
Data are guaranteed in the same way for other remote devices (RX/RY/RWr).
They are also guaranteed for remote devices (RX/RY/RWr/RWw) in the remote I/O
network mode.
Master station
Remote register
RWw0
RWw1
RWw2
RWw3
RWw4
RWw5
Automatic
refresh
RWw6
RWw7
RWw8
RWw9
RWwA
RWwB
RWwC
RWwD
RWwE
RWwF
8 FUNCTIONS
Remote station
Station number 1
4 stations occupied
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