Mitsubishi Electric Melsec Q Series User Manual page 31

2
SYSTEM CONFIGURATION
(3) When 125 DP-Slaves are connected
DP-Master (QJ71PB92V): 1
DP-Slaves: 125
Repeaters: 4
Bus terminator
Repeater 2
Repeater 3-1
DP-Slave
(FDL address 90)
DP-Slave : 31 modules
(4) When multiple DP-Masters are connected (Multi-master system)
More than one DP-Master with different FDL addresses can be connected to the
same network.
DP-Master(Class 1)(FDL address 0)
*1
Power
QJ71
QCPU
supply
PB92V
module
DP-Slave
DP-Slave
(FDL address 1)
(FDL address 2)
DP-Slave : 30 modules
DP-Slave DP-Slave
(FDL address 31) (FDL address 32)
DP-Slave : 30 modules
DP-Slave DP-Slave
(FDL address 61) (FDL address 62)
DP-Slave : 29 modules
Segment 4
DP-Slave
(FDL address 120)
Figure 2.3 When 125 DP-Slaves are connected
* 1 When using redundant CPUs, configure the network as shown in Section 2.3.
2.2 PROFIBUS-DP Network Configuration
2.2.2 PROFIBUS-DP network configuration examples
: Connection points counted as
number of modules
Segment 1
DP-Slave
(FDL address 30)
Segment 2
DP-Slave
(FDL address 60)
Segment 3
DP-Slave
(FDL address 89)
Segment 5
DP-Slave
(FDL address 121)
DP-Slave : 5 modules
Bus terminator
Repeater 1
Repeater 3-2
DP-Slave
(FDL address 125)
2
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