Language examples for Add-On Instruction instances

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Language examples for Add-On Instruction instances

Add-On Instruction instances in a ladder diagram include:

Item	Description
Single question mark	Required InOut parameter. Enter a tag.
Single and double question marks	Required Input or Output parameter. Enter a tag.
Double question marks	Optional parameter. Either: Use a default value. Enter a different value for an Input parameter.

Add an instance of an Add-On Instruction to a routine

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