Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 - Manual (Page 138)

5–11 Understanding the Resources of Your Drive
Publication 1336 FORCE–5.18 ––March, 1999
At times, you may want to customize the way your drive operates.
To help you with this task, function blocks have been included with
the ControlNet Adapter Board. You can combine function blocks
together to operate on almost any part of the drive functionality. The
flexibility of the function block system allows blocks to be used with
the drive’s velocity or current control parameters, drive–to–drive
parameters, as well as analog image parameters.
Important: This section is intended to be an overview of the
function block system. For more in–depth information,
refer to the Function Block Programming Manual.
The function block software provides the following advantages:
•
On smaller stand-alone applications, control programming can be
carried out completely within the drive.
•
On larger system applications, the loading of the PLC control
system can be reduced as control functions previously performed
within a PLC can be performed within the drive.
At the base of the function block system are the function blocks
themselves. A function block is a firmware subroutine that is stored
in memory within the ControlNet Adapter Board. The ControlNet
Adapter Board provides 28 different function block types.
Understanding Function
Blocks