Mitsubishi Electric MELSEC iQ-R Series User Manual page 30

Maximum configuration of network (using one repeater)
Using a repeater, two segments can be linked to one network.
However, because repeaters are counted as modules for both segments, the number of connectable modules of the entire
network is changed as follows.
DP-Master: 1 (2 in the redundant system)
DP-Slave: 61 (60 in the redundant system)
Repeater: 1
(2)
No.1
(2)
No.32
No.: FDL address (1 to 30 and 32 to 62 are for DP-Slaves, and 31 is for DP-Master)
(1) Segment
(2) Bus resistor
(3) Repeater
*1 Any FDL address can be assigned to the DP-Master.
Maximum configuration of network (using two repeaters)
When two repeaters are used, the number of connectable modules of the entire network is changed as follows.
DP-Master: 1 (2 in the redundant system)
DP-Slave: 91 (90 in the redundant system)
Repeater: 2
5 SYSTEM CONFIGURATION
28
5.1 Configuration of PROFIBUS-DP network
RJ71PB91V
No.31
No.30
No.62
(2)
(1)
(3)
(2)
*1