Mitsubishi QD51, User Manual

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MELSEC-Q
2 SYSTEM CONFIGURATION AND USABLE FUNCTIONS
2.3 For Use in Multiple CPU System
This section describes the use of the QD51(-R24) in a multiple CPU system.
(1) Making access from a BASIC program to a non-control CPU
When making access from a BASIC program to a non-control CPU, use the
QD51 (-R24) of function version B.
Multiple CPU system
QD51(-R24) of function version B
(2) When other stations to be accessed belong to a multiple CPU system
When accessing a CPU that is not controlling a replay module on the access
target station, use function version B or later for the following modules:
• QD51 (-R24) on local station
• Relay modules 1 and QCPUs on local station, relay station, and accessed
station
(Example)
MELSECNET/ H
1) : QCPU No.1
2) : QCPU No.2
3) : QCPU No.3
4) : QCPU No.4
1 : Module used for routing, controlled
by QCPU No.1
: QD51(-R24) controlled
by QCPU No.1
: Module used for routing, controlled
by QCPU No.2
1'
2
Source Station
Relay station
Setting from GX Developer
Peripheral device
MELSECNET/ H
Access Station
1 2 1' 1) 2) 3) 4)
2 2 1) 2) 3) 4)
2 1) 2) 3) 4)
Whether the control CPU of the relay module is the same or different,
it is possible to access the other station.
The modules used for the routing are MELSECNET/ H network modules
1 When accessing other stations, available relay modules are as follows:
•
MELSECNET/H and MELSECNET/10 network modules
•
Q series C24
•
Ethernet interface modules