Mitsubishi Electric QJ71LP21 Reference Manual page 39

2 SYSTEM CONFIGURATION
(a) Accessible to remote I/O station in other network
GX Developer
CPU CPU
No. 1 No. 2
CPU No.1 is
control CPU
(c) Accessible to non-control CPU in other network
GX Developer
QJ72
BR15
CPU CPU QJ71
BR11
No. 1 No. 2
CPU CPU
No. 1 No. 2
2 - 16
(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.
QJ72 I/O
I/O
BR15
QJ71 QJ71
BR11 BR11
QJ72
I/O
I/O
BR15
I/O
I/O
QJ71
BR11
CPU No.1 is
control CPU
QJ71
BR11
CPU No.1 is
control CPU
(b) Accessible to control CPU in other network
GX Developer
QJ72
BR15
CPU CPU QJ71
BR11
No. 1 No. 2
CPU CPU
No. 1 No. 2
(d) Accessible to other network even if relayed
station is controlled by another control CPU
GX Developer
QJ72
BR15
CPU No.1 is
control CPU
QJ71
CPU CPU
BR11
No. 1 No. 2
CPU CPU
No. 1 No. 2
MELSEC-Q
I/O
I/O
QJ71
BR11
CPU No.1 is
control CPU
QJ71
BR11
CPU No.1 is
control CPU
I/O
I/O
QJ71
BR11
CPU No.2 is
control CPU
QJ71
BR11
CPU No.1 is
control CPU
2 - 16