Applications Guide Tracer Graphical Programming - Trane

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Adding a comment
Adding a comment
Use comments to make notes in your program, to annotate blocks, or to
describe logic. Place a comment under the 85.0 constant block indicating
that it is being used as the equipment room temperature setpoint and
that it is in degrees Fahrenheit.
To add a comment:
1. From the Blocks menu, choose Comment and click in the design space
to place the Comment block. The Comment dialog box appears.
2. Type:
Equip Rm Temp Setpoint (°F)
3. Click OK. The comment appears in the design space (Figure 19).
Figure 19: Comment added to describe the Constant block
Comment
block
Arranging blocks
As the saying goes, “A picture is worth a thousand words.” In graphical
programming, because the picture tells a story, the way the picture looks
becomes very important. Move blocks and use the alignment options to
arrange your blocks and design your programs.
Selecting and moving blocks
Practice selecting and moving blocks in the design space.
To select and move blocks:
1. Press and hold the left mouse button on a block and then move the
cursor (click and drag) to move the block to a new position in the
design space.
2. To select two or more blocks, press the Ctrl key while clicking to select
blocks. The selected blocks are outlined in yellow.
Note:
You can also use a rubber-band selection to select more than
one block. Click in the design space and drag the cursor so that
the white line surrounds the blocks you want to select.
3. Click and drag the selected blocks to a new position in the design
space.
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