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2 SYSTEM CONFIGURATION AND USABLE FUNCTIONS
2.3 For Use in Multiple CPU System
2 - 6
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
(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
station
(Example)
Whether the control CPU of the relay module is the same or different,
it is possible to access the other station.
Source Station
Peripheral device
Setting from GX Developer
Relay station
1) 2) 3) 4)
MELSECNET/ H
Access Station
1) 2) 3) 4)
2
1 When accessing other stations, available relay modules are as follows:
•
MELSECNET/H and MELSECNET/10 network modules
•
Q series C24
•
Ethernet interface modules
QD51(-R24) of function version B
1 and QCPUs on local station, relay station, and accessed
1) 2) 3) 4)
1
2
1'
MELSECNET/ H
2
2
The modules used for the routing are MELSECNET/ H network modules
MELSEC-Q
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
1'
by QCPU No.1
: Module used for routing, controlled
2
by QCPU No.2
2 - 6
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