Siemens SIMATIC S7-1500 Function Manual page 119

S7 communication
Procedure for setting up an S7 connection via different S7 subnets
You have the option of using an S7 connection over multiple S7 subnets (PROFIBUS,
PROFINET/Industrial Ethernet) (S7 routing (Page 289)).
1. Configure the communications partners in the network view of the Devices & networks
editor of STEP 7.
2. Select the "Network" button.
3. Connect the relevant interfaces with the S7 subnets (PROFIBUS, PROFINET/Industrial
Ethernet) using drag-and-drop.
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Function Manual, 11/2019, A5E03735815-AH
Communication