Rockwell Automation T8082 Trusted Toolset Suite - Manual (Page 76)

Trusted
TM
Toolset Suite T8082
Issue 14 Feb 10 PD-T8082 76
For these function blocks, review the report that follows to check that these function blocks are
genuinely deleted or new. This warning also appears at the end of the report.
7.3. Operation
When enabled, the Intelligent Update Manager runs each time an application is compiled and
downloaded. Intelligent Updates work by comparing the most recently compiled application with a copy
(‘snapshot’) of the application currently running in the controller. A list of variable values to be
transferred (‘recipe’) is generated that the controller loads when realizing an application update. When
an application is downloaded (either as the initial download or as an on-line update), the Intelligent
Update Manager utility saves a snapshot of that application in a database for use the next time the
application is compiled. This snapshot is necessary for the next Intelligent Update to work.
7.4. Important Information
The following information must be read and understood before working on a safety certified system.
Refer to sections 3.11 & 3.12 of the 8094 Safety Manual. These sections describe the standards and
procedures to be applied when programming and updating a safety system. They cover workbench
configuration, language selection, formal testing, program design, communications interaction and
online modification.
Refer to the Toolset User Guide section A.15.6. This section describes the preparation and application
of updates where only the normal method is available, but the section on ‘Operations’ is relevant to
both forms of update.
On line variable forcing and power flow monitoring of a running application (on a live system) must be
carried out using the same version of the application as that running in the system.
Some changes to logic will cause function block internal variables to be reset to default values. This
may cause plant shutdowns. From release 3.5.1, the user is able to match function blocks to avoid
losing data. Before release 3.5.1, care must be taken with logic changes. This issue, and other online
update issues, are explained in section 1.9 and 1.10 of the Application Note AN-T80009. Read these
issues before performing changes.
The capabilities of intelligent online updates are described in section 1.7 and 1.8 of the Application
Note AN-T80009. Pay particular attention to cases where values will not be preserved.
Note that SFC programs are NOT recommended for safety systems, and should not be used for
systems needing Intelligent Updates.
For the on line update to function, the application size must be less than about 800K bytes to ensure
that the application, the online update recipe and other data fit into the 1MB available. A rough guide to
the application size is the size of the compiled appli.x6m file in the application folder, after completely
compiling the code for the Motorola option.