csmstr - Omega Engineering

COMPACTFLASH ACCESS
CRIMSON USER MANUAL - MODULAR CONTROLLER
capabilities somewhat frustrated. You may thus use the Master’s custom site facility to create
a completely custom web site using your favorite third-party HTML editor, and—by inserting
certain special sequences and storing the resulting files on the Master’s CompactFlash card—
expose this site using the panel’s web server.
CREATING THE SITE
The web site may use any HTML facilities supported by your browser, but must not use ASP,
CGI or other server-side tricks. The filenames used for the HTML files and associated
graphics must also comply with the old-style 8.3 naming convention. This means that file
extensions will be—for example—HTM instead of HTML, and JPG instead of JPEG. This also
means that the body of the filename must be eight characters or less, and that you must not
rely on the difference between upper- and lower-case to differentiate between pages. You
may use any directory structure, as long as you once again ensure that your directories
observe the 8.3 naming convention and do not rely on case differences.
EMBEDDING DATA
To embed tag data within a web page, insert the sequence [[N]], replacing N with the index
number of the tag in question. This index number is displayed on the status bar when a tag is
selected within the Data Tag window, and more-or-less corresponds to the order in which the
tags were created. When the web page containing this sequence is served, the sequence will
be replaced by the current value of the tag, formatted according to the tag’s properties.
DEPLOYING THE SITE
To deploy your custom web site, copy it into the \WEB directory on the CompactFlash card to
be installed in the Master. To copy the files, either mount the card as a drive on your PC as
described at the start of this manual, or use a suitable card writer connected to your PC. Make
sure that the Enable Custom Site property is set, and the custom site will appear on the web
server menu. When the site is selected, a file called DEFAULT.HTM within the \WEB directory
will be displayed. Beyond that point, navigation is according to the links within the site.
COMPACTFLASH ACCESS
Note that in order to serve custom web pages—or to provide access to the Master’s data
logger—the web server needs to be able to access the unit’s CompactFlash card. If you have
mounted the card as a drive on your PC and performed write operations, you may have to
wait a minute or so for the PC to unlock the card and allow the Master to get access. If you
are using an operating system earlier than Windows 2000 to perform such an operation, you
may find that your PC locks the card when the drive is first mounted, whether or not a write is
performed. Again, this lock will be released within a minute or so.
ACCESSING THE WEB SERVER
The web server can be accessed by multiple means depending on your application.
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