The modify: erase file node – PSC PT Program Generator User Manual

Page 137

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Building a Custom Portable Program

User’s Guide

125

3. Enable the

TimeOut

checkbox. Enter

45 in the

Seconds

pull-down

list that appears next to

TimeOut

. This instructs the program to return

to the

Main Menu

if the user presses a function key or if 45 seconds

pass with no input.

4. Press

OK

to save your settings and exit the dialog.

The Modify: Erase File Node

After you have uploaded data from the portable file, you will want to erase its
contents. Otherwise, further data you collect is appended to the data you just
uploaded, and your data file will quickly grow out of control. Complete the
following steps:

1. Select the

Modify: Erase File

node to open its dialog box.

2. On the

Data to Modify

tab, select

File in the

Data Destination

pull-

down list.

3. Select

Monthly Inventory from the

File

pull-down list.

4. On the

Modification type

tab, select

Delete from the pull-down list.

Figure 99. The Modify Type Tab: Erase File

5. On the

Next Node

tab, select

Exit Main Menu from the pull-

down list.

6. Press

OK

to save your settings and exit the dialog.

The nodes for uploading data are now complete. Close the

Upload Frame to

return to the main program level. Then select

File > Save

to save your changes

to the file.

The nodes that you created for the

Upload Data

frame ask the user for confir-

mation of the upload task. If the user answers

Yes, it outputs the data file

over the serial port. If the upload is successful, a message is displayed, the por-
table’s file is cleared, and the

Main Menu

returns. If the upload is unsuccessful,

the program beeps, displays an error message, and gives the user the option of
trying again.

Your portable program should now be complete.

2342.book Page 125 Thursday, July 22, 2004 8:35 AM

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