Application Guide Chapter 6
GFK-2928C Oct 2019
Updating from a Previous Release 27
Chapter 6: Updating from a Previous
Release
6.1 Overview
The upgrade process relies upon Machine Edition Toolchest operations to:
•
save information that is in the current application’s target,
•
retrieve the revised components as part of the upgrade,
•
rebuild the project using the new and saved Toolchest items.
There are several tasks that must be done in a specific order. First, the existing application
(project) should be duplicated. The duplicate copy should be renamed, possibly to include
descriptive revision information. Next, the duplicate project is opened so that some of the
dual-bus components may be saved as PAC Toolchest items.
6.2 Duplicate the Current Project
1.
Open PAC Machine Edition and navigate to the Project Manager.
2.
Select then create a duplicate of your existing project. You may rename the duplicate
to include descriptive revision information if desired. The duplicate will become your
working project.
3.
Open the working project.
6.3 Save Dual-Bus Components
Several of the Dual-bus program components contain logic that is specific to the current
project. The logic block BUSSES contain the objects that are associated with each dual bus
pair. Some objects contain the real- time data for the bus pairs and others contain the
configuration for each bus pair.
The top-level block (BUSSES) and the blocks that contain bus configuration data
(INIT_GB00, INIT_GB01, etc.) should be saved in the Machine Edition Toolchest.
Later in the process, these blocks will be retrieved and placed back into the application. In
the Navigator window, expand the target that contains the logic for the user-application
and dual-bus components.
1.
Make certain that the Toolchest is visible. (In the Machine Edition menu, select the
View tab, then check the box for Toolchest.)
2.
Create a new Toolchest Drawer that will be used to receive items from your
application.
3.
In the Toolchest, click on Local from the dropdown list. Then right-click anywhere in
the items that are displayed. This will produce a pop-up menu like the graphic shown
in Figure 33
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