Mitsubishi Electric Q12DCCPU-V - Block Data Assurance Per Station

5
ACCESS VIA NETWORK MODULES
5.2 CC-Link Module Access Function
5.2.1 Block data assurance per station
5 - 3
1
OVERVIEW
2
SYSTEM CONFIGURATION
3
SPECIFICATIONS
4
FUNCTIONS
5
ACCESS VIA NETWORK MODULES
6
PREPARATORY PROCEDURES AND SETTING
7
I/O NUMBER ASSIGNMENT
8
MEMORIES AND FILES
5.2.1 Block data assurance per station
The block data assurance per station is a function with which integrity of cyclic data is
ensured for each station.
Depending on the read/write timing, a block of cyclic data may be split into new and old
data in double-word (32-bit) units.
Use of this function ensures data consistency for each slave station.
(1) Applicable module
The following shows the CC-Link module that supports the block data assurance per
station function.
(2) Accessible devices
The following devices are accessible, using the block data assurance per station
function.
• Own station's RX
• Own station's RY
• Own station's link register (for sending)
• Own station's link register (for receiving)
• Own station's buffer memory
POINT
This function is effective for the ranges of the link refresh devices (buffer memory),
which correspond to the stations set by the parameters (Station information
settings) for the CC-Link master station.
For details of the link refresh devices (buffer memory) assigned to respective
stations, refer to "Slave station offset, size information" (buffer memory address:
3E0
H to 5DFH) in the buffer memory list for the CC-Link module.
For details of "Slave station offset, size information", refer to the following.
MELSEC-Q CC-Link System Master/Local Module User's Manual
Table 5.2 Module that supports the block data assurance per station function
Model Version
QJ61BT11N First 5 digits of serial No. is 08032 or later.
Q12DCCPU-V
Q06CCPU-V
Q06CCPU-V-B