WAGO 750-341 Manual page 124

120 • Network Communication
Application Protocols
5.3.4.7 SNTP-Client (Simple Network Time Protocol)
The SNTP client is used for synchronization of the time of day between a time
server (NTP and SNTP server Version 3 and 4 are supported) and the clock
module integrated in the fieldbus coupler. The protocol is executed via a UDP
port. Only unicast addressing is supported.
Configuration of the SNTP client
Configuration of the SNTP client is performed via the web-based management
system under the "TCP/IP" link. The following parameters must be set:
Parameter
Address of the Time
server
Time zone
Update Time
5.3.4.8 FTP-Server (File Transfer Protocol)
The file transfer protocol (FTP) enables files to be exchanged between
different network stations regardless of operating system.
In the case of the ETHERNET coupler, FTP is used to store and read the
HTML pages, created by the user, in the fieldbus coupler.
A total memory of 1.5 MB is available for the file system.
Note
Up to 1 million write cycles are possible for writing to the flash memory for
the file system.
The following table shows the supported FTP commands for accesses to the
file system:
Command
USER
PASS
ACCT
REIN
QUIT
PORT
PASV
TYPE
STRU
Meaning
The address assignment can be made either over a IP address or
a host name.
The time zone relative to GMT (Greenwich Mean time). A
range of -12 to +12 hours is acceptable.
The update time indicates the interval in seconds, in which the
synchronization with the time server is to take place.
Function
Identification of the user
User password
Account for access to certain files
Server reset
Terminates the connection
Addressing of the data link
Changes server in the listen mode
Determines the kind of the representation for the transferred file
Determines the structure for the transferred file
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP