Horner APG XL4 OCS HE-ETN300 - Manual (Page 68)

CH.10 SUP0740-07
11/30/2009 Page 68 of 98 # 958
4. Optionally, set up the FTP Configuration parameters for User 1 and/or User 2 as follows:
User Name: Enter an alphanumeric string (up to 40 characters) for the FTP Client’s User
Name.
Password:
Enter an alphanumeric string (up to 40 characters) for the FTP Client’s
Password.
Read Only:
Select this option to give the FTP Client read-only access to the OCS file
system.
Read / Write: Select this option to give the FTP Client read-write access to the OCS file
system.
Note: User Names and Passwords are case-sensitive and, by default, User Name and
Passwords for both User 1 and User 2 are empty. In this case, anonymous FTP
Clients can access OCS files, but file access will be read-only. In a typical
application, both User 1 and User 2 should be configured - one with read-only access
and the other with read-write access.
5. Click
OK to accept the new FTP protocol configuration.
10.3 FTP Operation
After performing Ethernet Module FTP Configuration, as described in section 10.2, a 3
rd
party
FTP Client (such as a PC running SmartFTP) can be used to access the OCS file system.
The target Ethernet Module’s configured IP Address, FTP User Name (if any) and FTP Password
(if any), must be entered into the FTP Client, to establish an FTP connection before any file
accesses can be initiated. Please refer to documentation provided with the 3
rd
party FTP Client,
regarding how to install, configure and operate the FTP Client.
When configuring an FTP Client, the user should be aware that the FTP protocol standard
defines many optional features. Similar to many UNIX implementations, the Ethernet Module FTP
Server imposes constraints on some of these options, as shown in Table 10.1 below.
Table 10.1 – Ethernet Module FTP Server Option Constraints
FTP Option Supported Not Supported
File Transfer Type: Binary Type ASCII Type & EBCDIC Type
File Format: Non-Print Format Telnet Format & Carriage Control Format
File Structure: File Structure Record Structure & Page Structure
Transmission Mode: Stream Mode Block Mode & Compressed Mode
Data Connection
Mode:
Active (PORT) Mode Passive (PASV) Mode
In addition, since the Ethernet Module FTP Server will automatically disconnect an FTP Client
after about 3 minutes of inactivity, the user might need to configure the FTP Client to periodically
send NOOP (No Operation) commands to the FTP Server, to keep the connection alive.
10.4 FTP File Accessing
When using FTP to exchange files with an OCS, the user should know that the OCS file system
implements an “8.3” filename format, which means all file and directory names must consist of up
to 8 characters, followed by an optional dot, and an optional extension with up to 3 characters.