Rockwell-automation Logix5000 Controllers I/O and Tag Data Programming Manuale Utente Scaricare il pdf (Pagina 60)

Chapter 3 Force I/O

To force a Do this

BOOL value Right-click tag and then click Force On or Force Off.

Non-BOOL value

In the Force Mask

column for the tag, type the value that you want to force the tag.

Press Enter.

5. Verify that I/O forces are enabled (see step 1). If they are not, on the Menu

bar, click Logic > I/O Forcing > Enable All I/O Forces, and then click

Yes to confirm.

ATTENTION: Changes to forces can cause unexpected machine motion that could injure personnel. Before you

disable or remove forces, determine how the change affects your machine or process and keep personnel away

from the machine area.

This section describes how to remove and disable forces.

If you want to And Then

Stop an individual force Leave other forces enabled and in

effect

Remove an Individual Force

Stop all I/O forces but leave all SFC

forces active

Leave the I/O forces in the project Disable All I/O Forces

Remove the I/O forces from the project Remove All I/O Forces

Remove an individual force

ATTENTION: If you remove an individual force, forces remain in the enabled state and any new force

immediately takes effect.

ATTENTION: Before you remove a force, determine how the change affects your machine or process and keep

personnel away from the machine area.

1. Open the routine that contains the force that you want to remove.

2. Determine the language of the routine.

If Then

SFC Go to step 4.

Ladder logic Go to step 4.

Function block Go to step 3.

Structured text Go to step 3.

3. Right-click a tag that has the force and then click Monitor.

If necessary, expand the tag to show the value that is forced, for example,

BOOL value of a DINT tag.

Remove or disable forces

60 Rockwell Automation Publication 1756-PM004E-EN-P - October 2014

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 85 86

Nessun commento

Rockwell-automation Logix5000 Controllers I/O and Tag Data Programming Manuale Utente Pagina 60