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10.3 Programming Using MELSEC Data Link Functions
10.3.12 Accessible ranges and devices of MELSEC data link functions
10
FUNCTIONS AND PROGRAMMING
: Accessible, : Inaccessible
(2) Access via CC-Link module
The following explains the accessible range and devices when access is made via a
CC-Link module.
(a) Accessible range
When access is made via a CC-Link module, the access is limited to
programmable controller CPUs on the master or local stations where the CC-Link
module is connected, the C Controller module, PC CPU module, intelligent device
station, and personal computer with the CC-Link board installed.
POINT
When the self station is station No.64,z access to another station is not allowed.
In this case, its own station can be accessed.
Table10.21 Accessible devices at the time of other station access(Continued)
Device
Device type
(Device name specification)
Access target
Programmable controller CPU
Other station random access
buffer
Batch
DevRAB
Random
Other station RX
Batch
DevRX
Random
Other station RY
Batch
DevRY
Random
Other station link register
Batch
DevRW
Random
Other station SB
(link special relay for CC-Link)
Batch
DevSB
Random
Other station SW
(link special register for CC-Link)
Batch
DevSW
Random
CPU shared memory
Batch
DevSPB1 (for CPU No.1),
DevSPB2 (for CPU No.2),
DevSPB3 (for CPU No.3),
DevSPB4 (for CPU No.4)
Random
Figure 10.23 Accessible range for access via CC-Link module
Self station (master or local station
controlled by C Controller module)
Other station programmable controller CPU,
C Controller module,
PC CPU module
(master or local station)
Intelligent device
station
Personal computer
(CC-Link board)
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