Phoenix Contact 2701399 NLC-START-01 NANOLINE STARTER KIT NPN-TRANSISTOR 2701399 Ficha De Dados
Códigos do produto
2701399
General Programming Techniques
2373_en_B
PHOENIX CONTACT
3-19
–
Save the project
–
Connect to the nanoLC
–
Verify a project
The ReDo stack is cleared (ReDo operations are no longer valid) when you perform any edit
on the flow chart other than an UnDo.
To perform an UnDo or ReDo operaton, click the “UnDo” or “ReDo” button on the Standard
toolbar, or select the “Edit... UnDo” or “Edit... ReDo” menu.
3.6
Flow Chart Block Introduction
This section provides a brief introduction to flow charts. For a more complete discussion,
To place a new flow chart block on the page, follow these steps:
1.
In the Block toolbar, click the button of the block type to place.
2.
Click in the desired location on the drawing page.
3.6.1
Enable Block
The Enable block always appears at the top of a flow chart. It allows the flow chart to begin
executing. It can contain an expression that conditionally activates the flow chart while the
project is running. To develop the control program, add flow chart blocks below the Enable
block.
3.6.2
Branching Blocks
Branching blocks (both Decision and Compare blocks) perform a test and determine which
of two paths to take after the test. Each branching block has one entry point and two exit
points indicating Yes and No paths from the block. By default, the bottom connector is the
Yes path, and the right side is the No path. For more information on branching blocks, see
Place a branching (Decision or Compare) block by clicking the respective Block toolbar
button, and then clicking in the desired location in the drawing area. Both Decision and
Compare blocks appear as diamonds in the flow chart (see Figure 3-12).
Figure 3-12
Decision and Compare blocks appear as diamonds
UnDo
Button
ReDo
Button