Brainboxes RS232 - Manual (Page 9)

Manual for BL-521 5_3.doc © Copyright Brainboxes Limited 2004 Page 9 of 41
3.5. Current Settings
The Current Settings section is broken down into two sections;
Local Device Settings and Partner Device Settings. Each field
will be discussed further below.
When the Current Settings has been selected, an additional
section appears in the left-hand section called Default Settings.
Both sections can be expanded at the same time to enable the
user to view the current settings and the default settings at the
same time.
As each section is opened, the previously opened section will
close to prevent information moving off the bottom of the screen
and thus requiring the user to scroll down.
Whenever a setting is changed, the field changes colour to
indicate that a change has been made but not applied.
Baud Rate
Click the drop down arrow at the far right of this field to display a list of popular baud rates. Due to some technical
limitations, it is not possible for the product to achieve all of these baud rates exactly, although most of them are
available to within 1%. Normal RS232 operation is not affected by such small differences in data rates unless very
long streams of continuous data are being used. The Actual baud rate achieved is displayed next to your selection.
This option is only applied when the “Apply” icon is clicked. Along with updating the device, the application will
immediately change its own communications parameters to match those new settings so it can continue to interact
with the device. Multiple changes to communications settings are ALL applied when the “apply” icon is selected.
NOTE: It is possible for the converters to be configured to baud rates that are not supported by a PC’s COM port. If
your application requires such a “non-standard” baud rate, you may no longer be able to communicate to the
converter from your PC. If you “apply” the setting inadvertently, you can restore the original settings of the converter
by performing a reset as documented below.
The converter’s normal factory set baud rate is 115200 baud.
Parity
Click the drop down arrow at the far right of this field to display the available options for Parity.
This option is only applied when the “Apply” icon is clicked. Along with updating the device, the application will
immediately change its own communications parameters to match those new settings so it can continue to interact
with the device. Multiple changes to communications settings are ALL applied when the “apply” icon is selected.
Stop Bits
Click the drop down arrow at the far right of this field to display the available options for Stop Bits.
This option is only applied when the “Apply” icon is clicked. Along with updating the device the application will
immediately change its own communications parameters to match those new settings so it can continue to interact
with the device. Multiple changes to communications settings are ALL applied when the “apply” icon is selected.
Data bits
Unfortunately this setting cannot be changed. BL-521 only supports the 8 data bit format. Thus there is not a
configuration menu option for this setting.