Failed to change instruction's Class to Safety

Failed to change instruction's Class to Safety

Instruction contains data types invalid for use in Safety.
The
Logix Designer
application prevents the modification of a User Defined or Add-On Defined type that would cause an invalid data type for User Defined or Add-On Defined types that are referenced directly or indirectly by a
Safety
tag. (This includes nested structures.)
The
invalid
data types are:
  • REAL - Only invalid on GuardLogix(L6S) and Compact GuardLogix(L4S) controllers
  • LINT
  • ALARM-ANALOG
  • ALARM DIGITAL
ST Prescan routine is invalid for Safety.
Safety only supports RLL.
Safety add-on instructions don't support Postscan routines.
Postscan routines are not supported in Safety add-on instructions. Safety only supports RLL.
FBD EnableInFalse routine is invalid for Safety.
FBD EnableInFalse routines are not supported in Safety add-on instructions. Safety only supports RLL.
For more information, see
Safety Add-On Instruction class change
.
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