Siemens S7-300 - The Advanced CP as FTP Client for S7 CPU Data; Procedure

File management and file access with FTP/FTPS
9.4 The Advanced CP as FTP client for S7 CPU data
Configuring and commissioning S7 CPs for Industrial Ethernet
Configuration Manual, 09/2013, C79000-G8976-C182-13
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If a file DB does not physically exist but is configured in the file allocation table "file_db.txt",
all the flags are reset in the display (display: − − − − − − − − − −) and the file size is indicated
as 0 bytes.
Note
It is possible to change from one folder to another on the CPU. However, only the
commands listed table
Table 9-1 FTP commands (Page 152) can be executed.
See also
FTP commands on the FTP client (Page 151)
9.4
The Advanced CP as FTP client for S7 CPU data
9.4.1
Procedure
To transfer data with FTP, create data blocks (file DBs) on the CPU of your S7 station.
The user program sends FTP jobs that are executed by the Advanced CP as an FTP client.
In the user program, use the program block FTP_CMD (FB40); see also section Program
blocks for FTP services (Page 160).
The data is transferred on FTP connections. FTP connections are special TCP connections
that you configure in STEP 7.
In the job, among other things, you specify the IP address of the FTP server, the storage
location of the file on the FTP server and the file name along with access information.
The following schematics illustrate how the function works when using FC40...44 or FB40.