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JCM-631 User Manual
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8.10 User-programmable IP interface
The user-programmable IP interface lets you send or receive any data via Ether-
net interface on the JCM-631 using TCP/IP or UDP/IP. The data is processed in
the application program.
Applications
The user-programmable IP interface allows the programmer to carry out data ex-
change via Ethernet connections which do not use standard protocols, such as
FTP, HTTP, JetIP, or Modbus/TCP. The following applications are possible:
■
Server
■
Client
■
TCP/IP
■
UDP/IP
Required program-
mer's skills
To be able to program user-programmable IP interfaces the following knowledge
of data exchange via IP networks is required:
■
IP addressing (e.g. IP address, port number, subnet mask)
■
TCP (e.g. connection establishment/termination, data stream, data backup)
■
UDP (e.g. datagram)
Restrictions
For communication via user-programmable IP interface, the programmer must
not use any ports which are already used by the operating system of the con-
troller. Therefore, do not use the following ports:
Protocol
Port number
Default value
User
TCP
Depending on the
FTP client
20
FTP server (data)
TCP
21
FTP server (con-
troller)
TCP
23
System logger
TCP
80
HTTP server
TCP
From the file /
EMAIL/email.ini
25, 110
E-mail client
TCP
502
Modbus/TCP
server
TCP, UDP
1024 - 2047
Various
TCP, UDP
IP configuration
50000, 50001
JetIP
TCP
IP configuration
52000
Debug server
INFO
Further Information
For more information on this subject refer to the application-oriented manual
User-Programmable Interfaces
available for download from our
.