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CHAPTER 8 PROGRAMMING
8
8.2 Program Example of a Multi-network System
8.2.3 Program example of cyclic transmission
8.2.3 Program example of cyclic transmission
The program example of cyclic transmission of multi-network system is the same as the program example of single
network system. ( Page 275, Section 8.1.3)
8.2.4 Program example of transient transmission
The program example of transient transmission of multi-network system is the same as the program example of single
network system. ( Page 278, Section 8.1.4)
However, when transient transmission is performed to another network, the program example is different from that of
the single network system in the following matter.
Using the following system configuration as an example, the following shows the differences with a program example
of a single network system.
(1) Target station network No. and target station No. of link dedicated instruction
Set the network No. and station No. of request target to the target station network No. ((S1)+4) and target station
No. ((S1+5) specified by the control data. ( Page 304, Section 8.2.4 (4))
(2) Interlock
When executing a link dedicated instruction, establish an interlock with the baton pass status (SW00A0.1) of the
relay station (1NS2) of the same network No. ( Page 304, Section 8.2.4 (4))
(3) Routing parameters
Set the routing parameters. ( Page 288, Section 8.2.2)
CPU module
D800
D849
CC-Link IE
Controller
Network module
CPU module
CC-Link IE
Controller
Network module
CC-Link IE
Controller
Network module
D900
D949
Control station
1M
P
1
Control station
2M
P
1
CPU module
D300
D349
CC-Link IE
Controller
Network module
D400
D449
Normal station
1N
S
2
Normal station
2N
S
2
READ instruction
WRITE instruction
Request source
Relay station (1N
S2)
in the same network No.
Request target
Network No.1 Network No.2
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