Mitsubishi MELSEC-Q Series User Manual page 458

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)
10
- 57 10.3 Programming Using MELSEC Data Link Functions
10.3.12 Accessible ranges and devices of MELSEC data link functions
(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 function) and batch read (mdReceive
function)
Random : Random write (mdRandW function), random read (mdRandR
function), bit set (mdDevSet function) and bit reset (mdDevRst
function)
2. Bit set (mdDevSet function) and bit reset (mdDevRst function) can access
only the bit devices.
1) Accessing self station
The following indicates the accessible devices when accessing a
MELSECNET/H module controlled by the C Controller module.
Table10.26 Accessible devices at the time of self station access
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Batch
Random
Device type
(Device name specification)
DevX
DevY
DevB
DevW
DevMAIL
DevLX(0)
DevLY(0)
DevLB(0)
DevLW(0)
DevSB(0)
DevSW(0)
Accessibility
: Accessible, : Inaccessible