License Validation (LV)

The License Validation (LV) instruction verifies if a non-expired license associated with a routine or Add-On Instruction is present in the controller.
Available Languages
Ladder Diagram
Ladder Diagram_License Validation (LV)_v1
Operands
Ladder Diagram
Operand
Type
Format
Description
Vendor Code
DINT
immediate
Unique number identifying the vendor of the license associated with a routine or Add-On Instruction.
Accepts an immediate integer value in the range of 0 to 2,147,483,647.
Product Code
DINT
immediate
Unique number identifying the product code of the license associated with a routine or Add-On Instruction.
Accepts an immediate integer value in the range of 0 to 2,147,483,647.
Affects Math Status Flags
No
Major/Minor Faults
None specific to this instruction.
Execution
Ladder Diagram
Condition/State
Action Taken
Prescan
N/A
Rung-condition-in is false
N/A
Rung-condition-in is true
Numeric compare"
If the license is valid and used in the project
Set Rung-condition-out to true
else
Clear Rung-condition-out to false
Postscan
N/A
Example
FTStudio-LV-EX-V1
Provide Feedback
Have questions or feedback about this documentation? Please submit your feedback here.