Rockwell-automation Logix5000 Controllers I/O and Tag Data Programming Manuale Utente Scaricare il pdf (Pagina 57)

Force I/O Chapter 3

Force status indicator

If your controller has a FORCE Status Indicator, use it to determine the status of

any I/O forces.

Important: The FORCE Status Indicator shows only the status of I/O forces. It does not s(how that status of SFC forces.

FORCE Status Indicator Then

Off

• No tags contain force values.

• I/O forces are inactive (disabled).

Flashing

• At least one tag contains a force value.

• I/O forces are inactive (disabled).

Solid

• I/O forces are active (enabled).

• Force values may or may not exist.

GSV instruction

Important: The ForceStatus attribute shows only the status of I/O forces. It does not show the status of SFC forces.

This ladder rung shows how to use a GSV instruction to get the status of forces.

where Force_Status is a DINT tag.

To determine if Examine this bit For this value

Forces are installed 0 1

No forces are installed 0 0

Forces are enabled 1 1

Forces are disabled 1 0

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Rockwell-automation Logix5000 Controllers I/O and Tag Data Programming Manuale Utente Pagina 57