Searching For Cpus And Devices On Your Ethernet Network - Siemens SIMATIC S7 System Manual

Communication
8.4 Ethernet
Configuring the IP information in the user program (dynamic IP information)
The SIP_ADDR instruction sets the CPU's IP address to the value found in its "ADDR" input,
the CPU's subnet mask to the value found in its "MASK" input, and the CPU's gateway to the
value found in its "GATE" input.
IP information or changes done through the SIP_ADDR instruction are immediate and do not
require a download of the project. The IP address information set with the SIP_ADDR
instruction is stored in permanent memory in the CPU.
Refer to the "Get IP address and set IP address (Ethernet)" (Page 214) instructions for more
information.
8.4.4.3

Searching for CPUs and devices on your Ethernet network

You can search for and identify the S7-200 SMART CPUs that are attached to your Ethernet
network in the "Communications" dialog. To access this dialog, click one of the following:
The "Communications" dialog will autodetect all connected and available
S7-200 SMART CPUs on a given Ethernet network by creating a lifelist. (See the figure
below.) After selecting a CPU, the following detailed information about the CPU is listed:
● MAC address
● IP information
● Station name
412
Communications button in the navigation bar
Communications in the project tree
Communications from the Component drop-down list in the
Windows area of the View menu ribbon strip
System Manual, V2.3, 07/2017, A5E03822230-AF
S7-200 SMART