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MELSEC-Q
2 SYSTEM CONFIGURATION
(4) By connecting to a remote I/O station for access to other stations, GX Developer
can access stations in the other network system, whether the relay stations in the
multiple CPU system are controlled by the same or different CPUs.
Also, GX Developer can access either the control CPU or non-control CPU in the
multiple CPU system.
(a) Accessible to remote I/O station in other network (b) Accessible to control CPU in other network
QJ72
BR15
GX Developer
QJ71
BR11
QJ71
BR11
CPU No.1 is
control CPU
I/O
I/O
QJ72
BR15
I/O
I/O
CPU
No. 1
CPU
No. 2
QJ72
BR15
CPU
No. 1
CPU
No. 2
QJ71
BR11
QJ71
BR11
QJ71
BR11
I/O
I/O
GX Developer
CPU
No. 1
CPU
No. 2
CPU No.1 is
control CPU
CPU No.1 is
control CPU
(c) Accessible to non-control CPU in other network (d) Accessible to other network even if relayed
station is controlled by another control CPU
QJ72
BR15
CPU
No. 1
CPU
No. 2
QJ71
BR11
QJ71
BR11
QJ71
BR11
I/O
I/O
GX Developer
CPU
No. 1
CPU
No. 2
CPU No.1 is
control CPU
CPU No.1 is
control CPU
QJ72
BR15
CPU
No. 1
CPU
No. 2
QJ71
BR11
QJ71
BR11
QJ71
BR11
I/O
I/O
GX Developer
CPU No.1 is
control CPU
CPU No.2 is
control CPU
CPU No.1 is
control CPU
CPU
No. 1
CPU
No. 2