Mitsubishi Electric Q Series Reference Manual page 23

1 OVERVIEW
GX Developer
Transient transmission
possible.
Q25H QJ71
CPU LP21
MELSECNET/H
No.8
1 - 6
(f) By installing multiple network modules, N:N communication (transient
transmission) with destination stations on eight network systems that use
the programmable controllers as relay stations can be performed using the
routing function.
(Refer to Section 7.4.2, "Routing Function.")
Transient transmission using the routing function can be performed not only
in a system composed of MELSECNET/H networks but also in a system
that contains CC-Link IE controller network and/or MELSECNET/10
networks.
Q25H QJ71 Q25H QJ71
CPU CPU
LP21 LP21
MELSECNET/H
No.1
Q25H QJ71 QJ71
CPU LP21 LP21
MELSECNET/H
: Only the High Performance model QCPU, Process CPU, Redundant
CPU, and Universal model QCPU accept multiple network modules.
(g) Either of the following systems can be chosen: the optical loop system
(maximum total extension of 30 km (98430 ft.)) which has a long station-to-
station distance and total distance, and is resistant to noise, or the coaxial
bus system (maximum total extension of 500 m (1640.5 ft.) which can easy
be wired.
(Refer to Section 3.1, "Performance Specifications.")
(h) The following functions facilitate network connection:
1) Any station to be connected in the future can be specified as a reserved
station.
Specifying a station not actually connected as a reserved station
prevents a communication error. (Refer to Section 5.3.4 "Designation of
the reserved station.")
2) It is not necessary to connect stations in order of the station Nos. in the
network. (Refer to Section 4.3.1 "Setting the station number.")
Request destination
QJ71
LP21
No.2
MELSECNET/H
Q25H QJ71 QJ71
CPU LP21 LP21
MELSECNET/H
No.3
Q25H
CPU
MELSECNET/H
Q25H QJ71 QJ71
CPU LP21 LP21
No.7
Q25H QJ71 QJ71
CPU LP21 LP21
MELSECNET/H
QJ71 QJ71 Q25H QJ71
LP21 LP21 CPU LP21
MELSECNET/H
No.6 No.5
MELSEC-Q
No.4
Request
QJ71
source
LP21
1 - 6