Siemens SIMATIC NET S7-300 User Manual

6 Programmed Communication Connections
A-176
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
6.5.5 Parameter field for FTP connection
Meaning
To handle an FTP job sequence between the S7 station as FTP client and an FTP
server, the IT-CP must set up a connection to the S7-CPU. This connection is
known in this context as an FTP connection.
FTP connections are TCP connections, with the parameter SUB_LOC_MODE set
to the “FTP” mode.
You will find a detailed description of how to use the FTP function with IT-CPs in
/5/.
Structure
Subfield 1
Subfield n
Subfield 2
ID = connection ID
Type = 1
No_of_subfields = n
Freely assignable connection reference;
must be specified in the FC FTP_**.
Range of values for the connection ID:
 S7-400: 1,2 through 64
 S7-300: 1,2 through 16
Identifier for the connection type
Usable Subfields
Table 6-9
Subfield
Parameter
ID Type
*)
Special Features / Notes
(Please refer also to the general
description in Table 6-10 Page A-177)
Use
( mandatory
/ optional)
18 SUB_CONNECT_NAME - o
19 SUB_LOC_MODE here: 0x01 = FTP protocol m
21 SUB_KBUS_ADR This value is always set to 0 for CPs for the
S7-300 and does not need to be specified.
m (for
S7-400)
*)
The general properties of the subfield types are described below in Section 6.6.

Siemens SIMATIC NET S7-300 Specifications

General

Product Type Designation	SIMATIC NET S7-300
Mounting	DIN rail mounting
Protection Class	IP20
CPU Models	Various models available (e.g., CPU 312, CPU 314)
Communication Interfaces	MPI, PROFIBUS DP
Power Supply	24 V DC power supply required. Different power supply modules available.
I/O Modules	Digital input modules, digital output modules, analog input modules, analog output modules
Programming	STEP 7 software
Supply Voltage	24V DC or 120/230V AC (depending on model)
Digital Inputs	Available via digital input modules
Digital Outputs	Available via digital output modules
Analog Inputs	Available via analog input modules
Analog Outputs	Available via analog output modules
Communication Functions	MPI, PROFIBUS DP, Ethernet (depending on model)
Protocols	MPI, PROFIBUS DP, TCP/IP (depending on model)
Operating Temperature	0°C to 60°C
Storage Temperature	70 °C
Memory	Depends on CPU model (e.g., 32 KB to 1.5 MB)