ProSoft Technology ProLinx S3964R Manuel d'utilisateur télécharger pdf (Page 35)

Publication LOGIX-AP010B-EN-P - May 2010 35

Software Conversions - Program Structure Chapter 2

Task Properties

The following property settings can be configured for all tasks:

• Watchdog - timer that specifies how long a task can run before

triggering a fault.

• Disable Automatic Output Processing To Reduce Task Overhead – this

is an option that allows output processing to be turned off, reducing the

elapsed time for that task. Normally at the end of a task the controller

performs overhead operations (output processing) for the I/O modules

in the system. While not the same as updating the modules, this output

processing may affect the update of I/O in the system.

• Inhibit Task - this is an option that prevents a task from executing when

the task trigger occurs. This option can be useful during

testing/commissioning.

RSLogix 5000 Programs

The RSLogix 5000 tasks can be divided into a number of programs. This

subdivision does not exist in Step 5, but can be used in RSLogix 5000 software

to achieve a more modular software architectural design.

When converting Step 5 applications with many individual OBs and PBs,

consider separating the application into one or more RSLogix 5000 programs.

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ProSoft Technology ProLinx S3964R Manuel d'utilisateur Page 35