Siemens S7-1500 Operating Instructions Manual page 48

Configuration, programming
4.7 Setting up FTP communication
Job blocks
The following data structures are used for the job blocks:
● Connection establishment
Various data structures are available for the connection establishment using the following
types of access:
– FTP_CONNECT_IPV4: Connection establishment with IP addresses according to IPv4
– FTP_CONNECT_IPV6: Connection establishment with IP addresses according to IPv6
– FTP_CONNECT_NAME: Connection establishment with server name (DNS)
● Data transfer
For the data transfer, two different data structures are available:
– FTP_FILENAME: Data structure for access to a complete file
– FTP_FILENAME_PART: Data structure for read access to a data area
Data transfer in the File_DB
The data transfer is achieved using data blocks containing a header for job data and the
area for the user data. The data block is specified in the job buffer.
Requirements in the CPU configuration
Use the following settings to allow FTP access:
● For all data blocks being used as file DBs, disable the "Optimized block access" attribute.
● Only when using a CPU V1.x and a CP V1.1.x:
Enable the "Access via PUT/GET communication" option in the configuration data of the
CPU under "Protection & Security" (PUT/GET must be released).
FTP access using the FTP_CMD instruction - parameters for command types NOOP and QUIT
Supply the FTP_CMD with a reference to a job block with the following command types as
well:
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Operating Instructions, 05/2017, C79000-G8976-C289-07
CP 1543-1