Configuring The Logical Network Connections Between An Hmi And A Cpu - Siemens SIMATIC S7 System Manual

PROFINET
7.3 HMI-to-PLC communication
Required steps in configuring communications between an HMI and a CPU
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7.3.1

Configuring the logical network connections between an HMI and a CPU

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. To create the Ethernet connection, select
the green (Ethernet) box on the CPU. Drag a line to the Ethernet box on the HMI device.
Release the mouse button and your Ethernet connection is joined.
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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 connection" (Page 211) for more information.
Configuring the devices
Refer to "Communication with a programming device: Configuring the devices" (Page 211)
for more information.
Configuring the logical network connections between an HMI and a CPU
Refer to "HMI to PLC communication: Configuring the logical network connections between
an HMI and a CPU" (Page 222) for more information.
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 "Communication with a programming device: Configuring an IP address in your
project" (Page 217) for more information.
Testing the PROFINET network
You must download the configuration for each CPU.
Refer to "Communication with a programming device: Testing the PROFINET network
(Page 219) for more information.
Task
S7-1200 Programmable controller
System Manual, 11/2009, A5E02486680-02