Siemens SIMATIC S7-1500R/H Getting Started page 50

Assigning redundancy IDs to CPUs in the configuration
Redundant operation is only possible if the two CPUs have different redundancy IDs. The
redundancy IDs can have values of 1 and 2. Both CPUs have redundancy ID 1 in the
configuration as the default:
The redundancy ID is used to assign a project tree to the real CPU in STEP 7. The upper
CPU of the two in the tree always has a redundancy ID of 1. The lower CPU of the two
always has the redundancy ID 2.
Requirements:
Both CPUs are in STOP. There is pairing between the two CPUs.
Procedure:
1. On the CPU display of the right CPU, select the menu item "Overview> Redundancy".
2. Assign the CPU redundancy ID 2.
Result: The right-hand CPU in the configuration is assigned redundancy ID 2.
Downloading project data to the primary CPU
In the example, download the project data from the PG/PC to the primary CPU via an online
connection. The project data (all configuration data and the complete user program) can only
be downloaded when a CPU is in STOP operating state.
Procedure:
1. Right-click to select the S7-1500R/H system in the project tree.
2. Select the "Download to device" > "Hardware and software (changes only)" command
from the shortcut menu.
Result: The "Extended download" dialog window opens.
3. Select the PG/PC interface.
4. Select the interface to which the PG/PC is connected.
5. Click on the "Start search" button.
Result: The "Choose target device" table shows the CPUs in the S7-1500H system. The
primary CPU is already selected.
6. Click "Load".
Result: The "Load preview" dialog window sets out the key information on the load
process to be run:
7. If the S7-1500R/H system is not in STOP, stop the system. To do so, select "Stop RH
system" in the "Action" column of the drop-down menu.
8. Click the "Download" button to start the download.
The "Results of loading" dialog window displays the results of the loading process.
S7-1500R/H redundant system
Getting Started, 10/2018, A5E44910930-AA
Commissioning
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