Rockwell Automation Publication 1769-UM021I-EN-P - May 2018 273
Develop Applications Chapter 10
Add-On Instructions
You can design and configure sets of commonly used instructions to increase
project consistency. Similar to the built-in instructions 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.
• Protect intellectual property with Source Protection.
• 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.
This table explains some of the capabilities and advantages of use Add-On
Instructions.
Table 36 - 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 editors:
•Relay Ladder
• Function Block Diagram
• Structured Text
Once you have created instructions, you can use them in any editor.
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 an instant, which simplifies 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 in dialogs, information that becomes what is known
as Custom Help. Custom Help makes it easier for you to get the help you need when implementing the instructions.
Apply Source Protection As the creator of Add-On Instructions, you can limit users of your instructions to read-only access. You can also 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 protects your intellectual property.