● The UR2-H rack has been inserted twice in HW Config.
● In HW Config, each mounting rack has been fitted with an H CPU in slot 3 and the required
synchronization modules.
Procedure
Note
Steps 1 through 4 are necessary only when a CP 443-5 Extended is used for the connection
to the redundant PROFIBUS.
1. In HW Config, select the menu command Insert > Hardware Components.
2. In the hardware catalog, double-click the "SIMATIC 400" folder. Then double-click the
"CP-400" folder and finally the "PROFIBUS" folder.
3. Select the version of the CP 443-5 Extended you are using and drag it to a free slot on the
module rack.
The "Properties - PROFIBUS Interface CP 443-5 Ext ..." dialog box opens.
4. Click "OK".
5. Select the slot on the rack for which you want to specify a redundant PROFIBUS DP
interface:
– Slot X2 to use the PROFIBUS DP interfaces of the CPU
– Slot of the CP 443-5 Extended to use the PROFIBUS DP interfaces of the CP 443-5
Extended
6. Select the menu command Edit > Master System > Insert.
The "Properties - PROFIBUS Interface CP 443-5 Ext..." dialog box opens.
Note
When inserting the DP master system for the redundant PROFIBUS DP interface, the entry
"Redundant subnet ..." is displayed below the "Subnet" list.
7. Click "New".
The "New Subnet" dialog box opens.
8. Make any necessary system-specific settings in the "New Subnet ..." dialog box (for
example, bus name, transmission rates, etc.).
9. Click "OK".
The new DP master system is entered in the "Subnet" list.
10.Click "OK".
11.Repeat steps 1 to 10 for the redundant rack.
Advantages of high availability components
5.3 Communications connections
High Availability Process Control Systems (V9.0)
120 Function Manual, 05/2017, A5E39221836-AA
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