Bosch Rexroth ID 40 Manual page 137

Example of an address range:
0.34, 0x0200.1280, 5000.0x13bc
The end address always has to be greater than or equal to the start address. If
both addresses are the same, the one byte at this address is returned.
10.5.1.3 Auto reload function
Auto reload automatically sends requests to the web server. This periodically
updates the page content without having to select Send request. Select auto reload
by clicking on the check box. You can configure the period between individual
requests in the selection box.
Be sure to consider the loading time of the data, especially with larger data loads,
and do not set an auto reload time that is too short.
Available in the following pages:
• 10.5.4 "SLK register page"
• 10.5.3 "MDT register page"
• 10.5.5 "MDT data page"
10.5.1.4 Prefetch function
As seen in the fieldbus systems, the web server also offers a prefetch function (see
also Chapter 6.4.1 "Prefetch"). When prefetch is active, the SLK reads the data
areas indicated in the address range from the MDT during the PRECONNECTED
phase, see also Chapter 2.2.1.3 "Preconnected".
• The prefetch function is available on the "MDT data page", Chapter 10.5.5.
• The desired data is displayed as expected once the prefetch has completed.
• The web server only provides the prefetch data through the Request button or auto
reload - not automatically like with the fieldbus (see Chapter 6.2 "Event-oriented
data transmission").
• The prefetches configured in the web server are independent of those in the
fieldbus. They are also executed in the PRECONNECTED phase.
To use the prefetch, enter the desired address ranges in the "Address Range" input
field, click the check box next to the prefetch and press Send Request. The web
server applies the address ranges to the internal prefetch configuration and returns
the data that is currently available. Red question marks (??) may appear instead of
bytes if the current data is not yet valid. As always with prefetch, the data is only
read from the next MDT sign-on.
Press Send Request again once the PRECONNECTED phase is complete. The desired
MDT data will now appear.
Web interface 137/176
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