Configuration
9.4 Configuring H-CPUs with PROFINET rings and R1 devices
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
297
9.4 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).
Requirements
The configuration detailed assumes that:
• You have configured the H-CPUs. For more information, refer to the section Configuring
R/H CPUs (Page 289).
1. Creating additional MRP domains
With an R1 device, communication takes place via two separate PROFINET rings. To do this,
you must create another MRP domain in STEP 7. To do so, proceed as follows:
1. Switch to the network view.
2. Click on the connection PN/IE_1 (Sync-Domain_1) between the PROFINET interfaces X1 of
the two H-CPUs.
3. Navigate in the Inspector window to "Properties > General > PROFINET subnet > Domain
management > MRP domains".
4. Create another domain "mrpdomain-2" in the table in the second row.
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