Rockwell-automation Logix5000 Program Parameters Programming Manual User Manual download pdf (Page 30)

Chapter 1 Connecting program parameters

Safety program to standard program connection rules

The following table summarizes the rules for using program parameters to connect

a safety program to a standard program.

Tip:

The connection rules for programs also apply to Equipment Phases.

Program_A

(Safety)

Program_B

(Standard)

Input Output InOut Public

Controller Scope

Tag (Safety Class)

Input

— Yes — Yes Yes

Output

— — — — —

InOut

— — — — —

Public

— — — — —

Controller Scope

Tag (Safety Class)

Yes Yes Yes Alias Alias

• An Input parameter from Program_A can connect to an Output parameter

of Program_A (wrap around).

• Safety mapping must be used to connect standard class tags to safety class

tags/parameters.

• Standard class tags cannot alias safety class tags.

30 Rockwell Automation Publication 1756-PM021A-EN-P - October 2014

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Rockwell-automation Logix5000 Program Parameters Programming Manual User Manual Page 30