Mitsubishi Electric MELSEC iQ-R Series User Manual page 32

Multi-master system
Multiple DP-Masters having different FDL addresses can be connected in one network.
Maximum of 123 DP-Slaves can be connected using three DP-Masters as follows.
DP-Master: 3
DP-Slave: 123
Repeater: 4
(1) No.64
No.: FDL address (0, 4, and 5 to 125 are for DP-Slaves, and 1 to 3 are for DP-Master)
(1) DP-Slaves controlled by the DP-Master (FDL address 1)
(2) DP-Slaves controlled by the DP-Master (FDL address 2)
(3) DP-Slaves controlled by the DP-Master (FDL address 3)
*1 Any FDL address can be assigned to the DP-Master.
Redundant system
The RJ71PB91V can be used in the redundant system. (Only DP-Slaves can be mounted on an extension base unit.)
Using the redundant system function, the proper operation can be continued even when the system is switched, and the
system switching request can be issued to Process CPU (redundant mode) when an I/O data exchange error occurs.
For details on the redundant system function, refer to the following.
( MELSEC iQ-R PROFIBUS-DP Module User's Manual (Application))
5 SYSTEM CONFIGURATION
30
5.1 Configuration of PROFIBUS-DP network
RJ71PB91V
No.1
(1) No.0
(3) No.5
(2) No.35
(1) No.94
RJ71PB91V
No.2
(2) No.4
(3) No.34
(2) No.63
(3) No.95
*1
RJ71PB91V
No.3
(3) No.125