ISPSoft User Manual An output node can be inserted in the following structures. *. Users are not allowed to insert output nodes into the output pins of a function block/an applied instruction to which operands are assigned. 11-10 Inserting an output node into an input pin of an AND/OR block Before After Inserting an output node into the output pin of an AND/OR block Before After Adding an output node downward Before After Adding an output node rightward Before After