B&B Electronics VFG3000 - Manual - Manual (Page 174)

U SING W EB S YNC V LINX F IELDBUS G ATEWAY M ANAGER U SER M ANUAL
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using this method, as earlier versions of Windows may otherwise lock the
CompactFlash card and disrupt data logging.
• The preferred method is to use the web server as described in the next chapter.
With the web server enabled, log files can be accessed over the Gateway’s
Ethernet port, using either a web browser, such as Microsoft Internet Explorer,
or by using the automated process implemented by the WebSync utility that is
provided with the Fieldbus Gateway Manager configuration software.
• Another preferred method, especially over networks, is to use the
Synchronization Manager. This advanced feature uses the File Transfer Protocol
(FTP) to synchronize the Gateway CompactFlash card with an FTP server. The
Gateway in this case will be an FTP client, thus allowing the Gateway to initiate
the file transfer, as opposed to the PC initiating the transfer via WebSync. Please
refer to the section “Advanced Communication – Configuring the
Synchronization Manager” of this manual for details on this feature.
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YNC
The WebSync utility—which will be stored in the directory specified when the software was
installed—can be executed to synchronize a directory on a PC with the contents of a
Gateway’s data logs. You may decide to configure an application, such as the Windows
Scheduler (or perhaps a
cron daemon), to run this utility on a regular basis, or you may use a
command line switch to instruct WebSync to perform the polling automatically. You may
also decide to host WebSync on a central server so that the log files can be made available to
selected users on your corporate network.
W EB S YNC S YNTAX
WebSync is invoked from the command line using the following syntax…
websync {switches}
…where is replaced with the IP address of the Gateway to be polled.
O
PTIONAL
S
WITCHES
The switches field may contain one or more of the following options…
• –terse can be used to suppress progress information.
• –poll can be used to poll the terminal every n minutes.
• –path can be used to specify dir as the directory to hold the log files.
• -ras can be used to invoke a dial-out connection to access the unit.
• -user can be used to specify the username for the connection.
• -pass can be used to specify the password for the connection.
• -num can be used to override the phone number for the connection.