Mitsubishi MELSEC-A Series Reference Manual page 126

6. LlNK DATA SEND/RECEIVE PROCESSING
AND PROCESSING TlME
(2) The following shows the transmission delay times when the CPU of the type that
makes a link refresh after END processing is used.
Link relay (B)
Link register (W)
Output (Y)
Master station
to local
station
LRDP or LWTP
instruction
Local station Link relay (B)
to master Link register (W)
station Input (Y)
Local station
Link relay (B)
to local
Link register (W)
station
Output (Y)
Master station
to remote
I/O station
RFRP or RTOP
instruction
Remote I/O station
to master Input (X)
station
M : Sequence program scan time for the master station
L : Sequence program scan time for a local station
LS : Data communication (send/receive) time
MELSECNET mode
Operating Mode
Applicability
Table 6.3 Maximum transmission delay time
L < LS < M, LS < L < M
6 - 9
MELSECNET
MELSECNET
MELSECNET MELSECNET
mode composite mode
mode
: Link refresh time for the master station
1
: Link refresh time for a local station
2
: I/O refresh time for a remote I/O station
3
MELSECNET/B
MELSECNET
MELSECNET MELSECNET
mode composite mode
mode
LS < M< L