Rockwell-automation Logix5000 Controllers Add-on Instructions Programm Manual de usuario descargar pdf (Pagina 65)

Defining Add-On Instructions Chapter 2

a. For the logic routine, describe execution of the instruction when

EnableIn is true.

b. For the EnableInFalse routine (if one exists), describe actions that

will take place when EnableIn is false, such as any outputs that get

cleared.

c. For the Prescan routine (if one exists), briefly describe actions that

will take place during the Prescan routine, such as initialization of

any parameters.

d. For the Postscan routine (if one exists), briefly describe actions

that will take place during the Postscan routine, such as

initialization of any parameters resetting any internal state of the

instruction.

6. Click the Help tab on the Add-On Instruction Definition Editor and type

additional information in the Extended Description field.

The extended description can include the following information:

• Additional parameter information

• Description of how the instruction executes

• Change history notes

7. Review the Help format in the preview window.

This is an example of the Logix Designer application generated help for the

instruction. This information is gathered from the definition descriptions that you

complete when defining an instruction.

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Rockwell-automation Logix5000 Controllers Add-on Instructions Programm Manual de usuario Pagina 65