Technical data

Description
3.1 Area of application and properties
RS 485 Repeater
10 Manual, 02/2011, A5E03382072-01
Rules
If you set up a PROFIBUS network with RS 485 repeaters:
● The number of RS 485 repeaters in series must be configured in STEP 7.
● Up to nine RS 485 repeaters may be connected in series.
● The maximum cable length between two nodes with RS 485 repeater may not exceed the
values listed in the table below.
Table 3- 2 Maximum cable length between two RS 485 repeaters
Transmission rate Maximum cable length between 2 nodes (in m) with RS 485 repeater
9.6 to 187.5 kbps 10000
500 kbps 4000
1.5 Mbps 2000
3 to 12 Mbps 1000