National Instruments NI-FBUS - Manual (Page 33)

Chapter 2 Using the NI-FBUS Configurator
NI-FBUS Configurator User Manual 2-10 ni.com
5. If you do not click the Write changes button, you can make all your
changes take effect when downloading the configuration by checking
the Write Contained Block Parameters checkbox.
You also can click the Write All button to write all parameters, including
changed block tags, to the block on the device.
Note Some devices will require that you set their mode to OOS mode before writing certain
parameters. A dialog box will appear to inform you of this if you attempt to write such a
parameter in any other mode.
Updating Block Parameters Values
You can update block parameter values in the block configuration window
manually or automatically, as described in the following sections.
Manually Update Block Parameters
To update one particular block parameter value manually, select the
parameter and click the Read Selected button in the block configuration
window toolbar.
To update all the block parameter values, click the Read All button.
Automatically Update Block Parameters
To set the NI-FBUS Configurator to update the block parameter values
periodically, complete the following steps:
1. At the top of the block configuration window, check the Periodic
Updates checkbox. When this box is checked, the NI-FBUS
Configurator periodically checks the bus for any changes in values for
the parameters and refreshes the values in the window.
An icon at the upper-left corner of the block configuration window
blinks green when you select the Periodic Updates checkbox.
2. Select the poll rate from the drop-down list next to the Periodic
Updates checkbox. The NI-FBUS Configurator will update all block
parameter values at that rate.
3. An icon at the upper-left corner of the block configuration window
blinks green to indicate you selected Periodic Updates.
Note If you select a fast update rate, the reads from the bus might not be able to occur at
that rate due to bus traffic, especially if you are already running a process.