Rockwell-automation Logix5000 Controllers Function Block Diagram Progr Manuel d'utilisateur télécharger pdf (Page 27)

Program a Function Block Diagram Chapter 1

3. On the Tag Browser, click the tag, or select the bit by clicking the down

arrow to the right of the tag and clicking the bit.

4. Press Enter or click a different spot on the diagram.

You can assign a constant value instead of a tag value to an input parameter.

If you want to: Then:

Make the value visible on the diagram and in reports Use an IREF on page 27

Change the value online without editing the routine Enter a Value in the Tag of a Block on page

Use an IREF

Complete these steps to assign a value to an IREF.

1. Add the IREF to the routine. For instructions on adding an element, see

Add a function block element on page 20

2. Wire the IREF to the input pin that gets the value. For instructions on

wiring elements together, see Wire elements together on page 24

3. Double-click the operand area of the IREF.

4. In the box, type the value and press Enter.

Assign an immediate value

(constant)

Rockwell Automation Publication 1756-PM009E-EN-P - October 2014 27

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Rockwell-automation Logix5000 Controllers Function Block Diagram Progr Manuel d'utilisateur Page 27