Operating instructions

Table Of Contents
Mounting and connecting the HMI device
3.3 Connecting the device
Comfort Panels
48 Operating Instructions, 03/2012, A5E03404994-02
3.3.5 Connecting the PLC
Wiring diagram
The figure below shows how to connect the HMI device to a PLC.
Connection to the PLC via PROFINET (LAN)
Connection to the PLC via PROFIBUS
NOTICE
Only use approved cables
If you do not use approved cables to connect a SIMATIC S7 controller, you may experience
malfunctions.
Only use approved cables to connect a SIMATIC S7 controller.
Standard cables are available for the connection. You can find additional information on this
in the Internet at Industry Mall (http://mall.automation.siemens.com
).
Connecting PROFINET
NOTICE
PROFINET IO communication
For instructions regarding the installation of PROFINET networks, refer to the "PROFINET
System Description" manual.
The following applies for devices with 7" or larger displays: The HMI device has an internal
switch. This enables you to set up a ring topology, for example, with the HMI device without
an external switch. Use the X1 interface to set up a ring topology for devices with a 15" or
larger display.
See also
Communication with PLCs (Page 208)