Summary of settings in STEP 7 and rules
Table 8-1Setting of the MRP roles in STEP7 and rules
Property PROFINET ring Line topology Combined topo
logy
H-CPUs without additional devices
Topology
possible in
redundant
system
S7-1500R S7-1500H S7-1500H S7-1500H
MRP role of the
CPU
Manager
(auto)
Manager
(auto)
Not device in the ring Not device in the ring
MRP role of the
IO devices
Client Client Not device in the
ring
Depending on the
installation loca
tion: Not device in
the ring or client
-
MRP role of
devices outside
STEP 7 project
Client Client Not device in the ring -
Rules - Assign individual R1 devices:
Assign in the network view: You have to connect
the left interface module of the R1 device to the H-
CPU with redundancy ID 1. You have to connect the
right interface module of the R1 device to the H-
CPU with redundancy ID 2.
Assign multiple R1 devices simultaneously:
1. In the network view, select the R1 devices.
2. Open the shortcut menu via the right mouse
button and select the menu command "Assign
new DP master/IO controller".
3. Select the two IO controllers (H-CPUs) in the
dialog.
Result: All marked R1 devices are assigned to the H-
CPUs
• IMs on slot 0 with H-CPU with redundancy ID 1
• IMs on slot 1 with H-CPU with redundancy ID 2
• Do not configure any further IO
devices in the STEP 7 project.
• Do not connect PROFINET lines to the
PROFINET interfaces X1 P1R/X1 P2R of
the H-CPUs in the hardware configura
tion.
Reference
You can find information on the PROFINET topologies of S7-1500R/H redundant systems in
the PROFINET Function Manual.
(https://support.industry.siemens.com/cs/ww/en/view/49948856)
8.4 Configuring H-CPUs with PROFINET rings and R1 devices
Introduction
The section below guides you step by step through the configuration of PROFINET rings with
R1 devices for an S7-1500H redundant system. The configuration example consists of two R1
devices (ET 200SP IM 155-6 PN R1).
203
Configuration
8.4 Configuring H-CPUs with PROFINET rings and R1 devices
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD