Rockwell-automation 5720 DriveLogix System Manual de usuario descargar pdf (Pagina 100)

Publication 20D-UM002C-EN-P - November 2003

4-16 Placing and Configuring Local I/O

Using aliases to simplify tag names

An alias lets you create a tag that represents another tag. This is useful for

defining descriptive tag names for I/O values. For example:

Monitoring I/O Modules

The DriveLogix controller offers different levels at which you can monitor

I/O modules. You can:

• configure an I/O module so that the controller faults if that I/O

module loses its connection with the controller

• use the programming software to display fault data

• program logic to monitor fault data so you can take appropriate action

Configuring the module’s response to a connection failure

You can configure modules to generate a major fault in the controller if they

lose their connection with the controller.

If you do not configure the major fault to occur, you should monitor the

module status. If a module loses its connection to the controller:

• outputs go to their configured faulted state

Example: Description:

I/O structure Local:0:O.Data.0

Local:0:I.Fault.0

The aliases describe the specific I/O points.

alias light_on = Local:0:O.Data.0

light_off = Local:0:I.Fault.0

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Rockwell-automation 5720 DriveLogix System Manual de usuario Pagina 100