Siemens SIMATIC NET S7-1500 - Page 44

Configuration, programming
4.7 FTP communication
CP 1543-1
44 Operating Instructions, 12/2019, C79000-G8976-C289-08
You make the data block assignment in the STEP 7 configuration of the CP (FTP
configuration).
Figure 4-3 S7-CPU with CP 154x-1 as FTP server for the S7 CPU data
DB assignment in STEP 7
The fields of the table in the data block assignment in STEP 7 have the following meaning
and syntax:
Column title
CPU
DB
File name
Comment
Meaning
Assignment of the CPU
Selectable from drop-
down list
No. of the data block
(file DB)
Selectable from drop-
down list
The file name assigned
to the file DB
Automatic name pro-
posal; entry can edita-
ble.
Informal comment
Example
cpu1 [PLC_1] 20 cpu1_db20.dat Measured values plant
1
Notes on the syntax
The following applies to the file name of a file DB:
● The file name begins with "cpuX" (where X=1 for S7-1500).
Note
Keep to the
notation (lower case for "cpu" and no leading spaces at the start of the row).
Otherwise, the files will not be recognized.
● Length: maximum 64 characters (including "cpuX")