Siemens Simatic S7 Series System Manual

Communication
8.4 Ethernet
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
369
8.4.5.3
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:
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
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
The IP address of a CPU is not associated with a STEP 7-Micro/WIN SMART project.
Opening a STEP 7-Micro/WIN SMART project does not automatically select an IP address
or establish a connection to a CPU. Every time you create a new or open an existing
STEP 7-Micro/WIN SMART project, you must go to the Communications dialog to establish
a connection to a CPU. The Communications dialog will show the last selected CPU.

Siemens Simatic S7 Series Specifications

General

CPU	Varies by model (e.g., S7-300, S7-400, S7-1200, S7-1500)
Communication Interfaces	PROFIBUS, PROFINET, Ethernet, MPI
Programming	TIA Portal, STEP 7
Programming Languages	LAD, FBD, STL, SCL, GRAPH
I/O Modules	Digital, Analog, Specialty modules available
Operating Temperature	0°C to 60°C (standard models)
Mounting	DIN rail mounting
Operating Voltage	24V DC or 120/230V AC (varies by model)
Protection Class	IP20 (standard models)
Memory	Varies depending on the S7 model. Includes work memory (RAM) for program execution, load memory (EEPROM or Flash) for program storage, and system memory for operating system functions. Memory sizes range from kilobytes to megabytes.