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12.5 INTERFACE Screen (SYSTEM 4)
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SYSTEM 4 INTERFACE 2/2 screen
Port No.
The 8841/42 uses TCP/IP for communications. TCP/IP allows multiple
connections for different types of communications. A port number identifies
each connection. The 8841/42 uses port numbers 8800 to 8809.
8800 (8841/42 as the server.): Used by the 9333 remote control
application.
8801 (8841/42 as the client): Used by the 9333 data acquisition
application.
8803 (8841/42 as the server): Used with communications commands.
8802 to 8809: Reserved
You need not edit the port number setting, unless some ports are not
available due to security reasons or not available on the PC with which the
8841/42 communicates.
This sets the three leftmost digits only. The rightmost digit (from 0 to 9) is
used by the 8841/42 or reserved.
Delimiter and Header ON/OFF
Used when applying control by using communications commands.
Header ON/OFF sets whether to add a header in the response to a command.
Delimiter sets whether to use LF or CR+LF for the response to a command.
Both LF and CR+LF are accepted in command transmission.
Communications commands are transmitted by connecting to port 8802
(default) of the 8841/42 using TCP and sending a character string.
FTP User Name and Password
Used for authentication when logging into FTP of the 8841/42. When a user
name and password are set, you cannot log in unless the user name and
password are correct.
If you leave these settings blank, authentication will not be performed and
anyone can log in.
Also leave both settings blank when using an anonymous FTP client.
FTP Access Control
This controls access from an external source. Select from the following:
"Read-only": An external device can only read files.
"Read/write-enable": An external device can read, write, or delete files.
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