Rockwell Automation 1336T Function Block Prog. Manual, Series A/B - Manual (Page 51)

3–3 System Interactions
1336 FORCE — 5.9 August 1995
A function block Recall copies the function block application that is
currently stored in BRAM into RAM. This application is then stored
in RAM and is available for execution. When requested, a function
block Recall does the following:
1. Verifies the function block data checksum before performing a
function block RAM initialization.
2. Restores the execution list values, all node values, and link
references to the appropriate RAM data tables from their
associated counterparts within BRAM.
3. Activates the function block compiler.
4. Processes links first and then goes over the linear parameters and
adjusts links of linear parameter inputs to function block nodes.
5. If there are no function block soft faults after this processing,
execution of the 20 millisecond function block application is
activated, and drive enable is allowed.
After all Recall and power up operations, automatic recompilation
and processing of function block links occurs.
Important: You cannot perform a Recall while the drive is enabled.
In a 1336 FORCE drive with a PLC Communication Board, the 497
linear parameters are stored separately from the function block node
parameters. Therefore, the functions for initializing, saving, and
restoring data for the function blocks are separate from the linear
parameter BRAM functions.
This effects the link information. The information about a link is
stored with the parameter or node that is receiving the information.
Therefore, if you have a link between a function block node and a
linear parameter and you perform a BRAM function for either the
function blocks or the linear parameters, you may create an invalid
link. This is due to the way that the Init and Recall functions work
between the function blocks and the linear parameters.
The Function Block Recall
Command
Linear Parameter
BRAM Functions and Links