Mitsubishi MELSEC-Q Series User Manual page 549

10
FUNCTIONS AND PROGRAMMING
Device
Own station input internal buffer
(LX buffer)
Own station output internal buffer
(LY buffer)
Own station link relay internal
buffer (LB buffer)
Own station link register internal
buffer (LW buffer)
Q/QnA RECV function
Own station direct link input (LX)
Own station direct link output (LY)
Own station direct link relay (LB)
Own station direct link register
(LW)
Own station direct link special
relay (SB)
Own station direct link special
register (SW)
(b) Accessible devices
The following explains the accessible devices when access is made via a
MELSECNET/H module.
POINT
1. The words, Batch and Random in the table indicate the following.
Batch : Batch write (mdSend and mdSendEx functions) and batch read
(mdReceive and mdReceiveEx functions)
Random : Random write (mdRandW and mdRandWEx functions), random
read (mdRandR and mdRandREx functions), bit set (mdDevSet
and mdDevSetEx functions) and bit reset (mdDevRst and
mdDevRstEx functions)
2. Bit set (mdDevSet and mdDevSetEx functions) and bit reset (mdDevRst and
mdDevRstEx functions) can access only bit devices.
1) Accessing own station
The following indicates the accessible devices when accessing a
MELSECNET/H module controlled by the C Controller module.
Table10.32 Accessible devices at the time of own station access
(Device name specification)
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
10.3 Programming Using MELSEC Data Link Functions
10.3.12 Accessible ranges and devices of MELSEC data link functions
Device type
DevX
DevY
DevB
DevW
DevMAIL
DevLX(0)
DevLY(0)
DevLB(0)
DevLW(0)
DevSB(0)
DevSW(0)
Accessibility
: Accessible, : Inaccessible
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