Rockwell Automation DeviceLogix System User Manual - Manual (Page 150)

150 Publication RA-UM003B-EN-P - February 2010
Chapter 7 Create Logic in the New Ladder Editor
Add Parameters
While the Parameter tab in the Macro Block Definition dialog box
allows you to edit parameters, you cannot add Macro instruction
parameters here. You add parameters when you add an instance of
the Macro instruction type to your ladder logic.
Set Macro Security
Password protection provides the capability for Macro Block designers
to protect definitions and parameters. You may enable Macro security
when you create the Macro block; by default, password protection is
disabled on a new Macro block. The security scope extends to each
instance of the Macro block that you add to the ladder logic.