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138 PT Program Generator (PPG) v5.0
2. Creates a new Output node, called Scan. This Output node writes the
register contents starting at the cursor position.
• Selects Output to Display.
• Chooses Register from the
Data Source pull-down list.
• Chooses Default Register from the
Register pull-down
list.
The first
Output node prevents the register contents from being written on the
last line of the display, which is not always desirable. The second output node
sends the contents of the
Default Register to the display.
Sample Verification Methods
Verifying a Numeric Value
Often, collected values must conform to a specific type. PPG can check data to
verify that it meets the user’s criteria. Create an application to check to see if a
value is numeric:
1. Create a
Verify node.
Figure 105. Newly Created Verify Node
2. Select the location of the data value to be verified.
2342.book Page 138 Thursday, July 22, 2004 8:35 AM