National Instruments NI-FBUS - Manual (Page 34)

Chapter 2 Using the NI-FBUS Configurator
© National Instruments Corporation 2-11 NI-FBUS Configurator User Manual
Create and Edit Function Block Applications
Function blocks contain an algorithm and multiple parameters to control a
process. The names of input and output parameters of a function block are
displayed on the block diagram, as shown in the following figure.
The pointers on the outside of the parameters show the data flow direction
of that parameter. By default, the block tag is at the top, the inputs are on
the left, and the outputs are on the right.
You can resize the block and move the block’s tag relative to the block.
Add Blocks to the Function Block Application
1. To open the Function Block Application Editor window, double-click
the Function Block Application icon in the configuration tree.
2. Drag blocks from the configuration tree to the Function Block
Application Editor until all the blocks you want to use are in the
Function Block Application Editor.
Tip You can drag host devices from the configuration tree into the Function Block
Application Editor. Dragging host devices allows you to configure alarms and trends,
as described in the
Configuring Alarms section and the Configuring Trends section.
You also can add blocks by completing the following steps.
1. Right-click in the background of the Function Block Application
Editor or click the Block button in the toolbar of the Function Block
Application Editor.
2. Select the device or interface from the menu that appears, and then
select the block you want to place on the screen from the menu of
function blocks.