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APPENDICES
Appendix 5 Program for Refresh when Using Multiple Local Modules
App - 13
APPENDICESINDEX
Appendix 5 Program for Refresh when Using Multiple Local Modules
This section explains a refresh program for the case where multiple local modules are
installed to a Q series programmable controller.
Adding a Q series local station to the existing system or replacing an existing one allows
data sharing with the MELSECNET/H, using the Q series local station as a relay station.
Also, installing multiple local modules can increase the maximum link points per station.
Figure App.1 Data sharing between MELSECNET(II) and MELSECNET/H
L4 to L7 stations
MELSECNET (II)
M station
L1 station
L2 station
R3 station
MELSECNET/H
1MP1 station
1N
S2 station
1N
S3 station 1NS4 station
1N
S5 station
M
L1
L2
M station
L1 station
L2 station
L4 station
L5 station
L6 station
L7 station
L2 station
M station
L1 station
L2 station
L4 station
L5 station
L6 station
L7 station
L1 station
M station
L1 station
L2 station
L4 station
L5 station
L6 station
L7 station
M station
1M
P
1 station
1N
S
2 station
B/W0
B/WFFF
1NS2
station
1N
S
3 station
1N
S
4 station
1N
S
5 station
1M
P
1 station 1N
S
3 station 1N
S
4 station 1N
S
5 station
Cyclic transmission
Data transfer by sequence program
MELSECNET data link system
MELSECNET/H network system
Q series
programmable controller
M M M
L4 L5 L6 L7
station
L4
L5
L6
L7
L1
L2
L4
L5
L6
L7
L1
L2
L4
L5
L6
L7
L1
L2
L4
L5
L6
L7
1M
P
1 station
1NS2
station
1N
S
3 station
1N
S
4 station
1N
S
5 station
1M
P
1 station
1NS2
station
1N
S
3 station
1N
S
4 station
1N
S
5 station
1M
P
1 station
1NS2
station
1N
S
3 station
1N
S
4 station
1N
S
5 station
1M
P
1 station
1NS2
station
1N
S
3 station
1N
S
4 station
1N
S
5 station
(Q3 B)
(Q5 B/Q6 B)
(QA1S6 B)
Local
module