Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual - Manual (Page 159)

Rockwell Automation Publication 1756-UM001O-EN-P - October 2014 159
Develop Applications Chapter 10
Add-On Instructions With RSLogix 5000 software, version 16.03.00 or later, and Logix Designer
application, version 21.00.00 or later, you can design and configure sets of
commonly used instructions to increase project consistency. Similar to the
built-in instructions that are contained in Logix5000 controllers, these
instructions you create are called Add-On Instructions. Add-On Instructions
reuse common control algorithms. With them, you can do the following:
• Ease maintenance by animating logic for one instance.
• Help protect intellectual property with locking instructions.
• Reduce documentation development time.
You can use Add-On Instructions across multiple projects. You can define your
instructions, obtain them from somebody else, or copy them from another
project.
Table 38 explains some of the capabilities and advantages of use Add-On
Instructions.
Once defined in a project, Add-On Instructions behave similarly to the built-in
instructions in Logix5000 controllers. They appear on the instruction tool bar
for easy access along with internal instructions.
Table 38 - Add-On Instruction Capabilities
Capability Description
Save Time With Add-On Instructions, you can combine your most commonly used logic into sets of reusable instructions. You save time when you
create instructions for your projects and share them with others. Add-On Instructions increase project consistency because commonly
used algorithms all work in the same manner, regardless of who implements the project.
Use Standard Editors You create Add-On Instructions by using one of three programming editors:
• Relay Ladder
• Function Block Diagram
• Structured Text
Export Add-On Instructions You can export Add-On Instructions to other projects and copy and paste them from one project to another. Give each instruction a
unique name so that you don’t accidentally overwrite another instruction of the same name.
Use Context Views Context views let you visualize the logic of an instruction for instant, simplified online troubleshooting of your Add-On Instructions.
Each instruction contains a revision, a change history, and an auto-generated help page.
Create Custom Help When you create an instruction, you enter information for the description fields. This information becomes custom Help.
Apply Source Protection As the creator of Add-On Instructions, you can limit users of your instructions to read-only access, or you can bar access to the internal
logic or local parameters that are used by the instructions. This source protection lets you stop unwanted changes to your instructions
and helps protect your intellectual property.