Siemens Simatic S7 Series System Manual

PLC concepts
4.3 Saving and restoring data
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
75
4.3
Saving and restoring data
4.3.1
Downloading project components
Note
Downloading a program block, data block, or system block to the CPU completely overwrites
any pre
-existing contents of that block in the CPU. Be sure that you want to overwrite the
block before performing a download.
To download project components from STEP 7-Micro/WIN SMART to the CPU, follow these
steps:
1. Ensure that your network hardware and PLC connector cable are working (Page 27), and
that PLC communication is operating properly (Page 465).
2. Place the CPU in STOP mode (Page 36).
3. To download all project components, click the Download button from the Transfer area of
the File or PLC menu ribbon strip, or alternatively press the shortcut key combination
CTRL+D
.
4. To download selected project components, click the down arrow under the Download
button, and then select the specific project component you want to download (Program
Block, Data Block, or System Block) from the drop-down list.
5. After clicking the Download button, if you see a Communications dialog, select the
Network Interface Card and the IP address for the PLC to which you want to download.
6. From the Download dialog, set the download options for the blocks, and whether you
want to be prompted on CPU transitions from RUN to STOP mode (Page 36) and STOP
to RUN mode (Page 36).
7. Optionally click the "Close dialog on success" check box if you want the dialog to
automatically close after a successful download.
8. Click the Download button.

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.