Siemens SIMATIC S7-1200

Communication
11.2 PROFINET
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
917
Table 11- 50 Required steps in configuring communications between an HMI and a CPU
Step
Task
1 Establishing the hardware communications connection
A PROFINET interface establishes the physical connection between an HMI and a CPU. Since Auto-
Cross-Over functionality is built into the CPU, you can use either a standard or crossover Ethernet cable
for the interface. An Ethernet switch is not required to connect an HMI and a CPU.
Refer to "Communication with a programming device: Establishing the hardware communications connec-
tion" (Page 914) for more information.
2 Configuring the devices
Refer to "Communication with a programming device: Configuring the devices" (Page 914) for more in-
formation.
3 Configuring the logical network connections between an HMI and a CPU
Refer to "HMI-to-PLC communication: Configuring the logical network connections between two devices"
(Page 917) for more information.
4 Configuring an IP address in your project
Use the same configuration process; however, you must configure IP addresses for the HMI and the CPU.
Refer to "Device configuration: Configuring an IP address for a CPU in your project" (Page 814) for more
information.
5 Testing the PROFINET network
You must download the configuration for each CPU and HMI device.
Refer to "Device configuration: Testing the PROFINET network" (Page 819) for more information.
11.2.10.1
Configuring logical network connections between two devices
After you configure the rack with the CPU, you are now ready to configure your network
connections.
In the Devices and Networks portal, use the "Network view" to create the network
connections between the devices in your project. First, click the "Connections" tab, and then
select the connection type with the dropdown, just to the right (for example, an ISO on TCP
connection).
To create a PROFINET connection, click the green (PROFINET) box on the first device, and
drag a line to the PROFINET box on the second device. Release the mouse button and your
PROFINET connection is joined.
Refer to "Device Configuration: Creating a network connection" (Page 806) for more
information.