SYSTEM AND METHOD FOR FREE FORM COMMENTS FOR A PROGRAMMABLE LOGIC CONTROLLER
A method of annotating a specification of a programmable logic controller is provided that includes displaying a graphical element in a first graphical language for programming the programmable logic controller, and displaying a comment associated with the graphical element. A method for converting a specification for a programmable logic controller in a first language to a second language is provided that includes converting a first instruction in the first language to a second instruction in the second language, and converting a first comment associated with the first instruction to a second comment associated with the second instruction. A computer-readable recording medium is provided.
1 . A method for converting a specification for a programmable logic controller in a first language to a second language, comprising:
converting a first instruction in the first language to a second instruction in the second language; and
converting a first comment associated with the first instruction to a second comment associated with the second instruction.
2 . The method of claim 1 , further comprising associating the comment with the first instruction.
3 . The method of claim 1 , wherein one of the first and second languages is a graphical language.
4 . The method of claim 3 , wherein the comment is displayed in a bubble when the one of the first and second language is the graphical language.
5 . The method of claim 1 , wherein:
the first language is a text-based language and the second language is a graphical language; and
the converting of the first comment to the second comment includes identifying a graphic equivalent of the first instruction and displaying a bubble for the second comment, the bubble being visually associated with the graphic equivalent.
6 . The method of claim 5 , herein:
when the first instruction is one of a load instruction and a transfer instruction, the bubble for the second comment is associated with a wire;
when the first instruction is a main instruction, the bubble for the second comment is associated with a box; and
when the first instruction is an ENO handling instruction, the bubble for the second comment is merged to the box.
7 . The method of claim 1 , wherein:
the first language is a graphical language and the second language is a text-based language; and
the converting of the first comment to the second comment includes identifying a text equivalent of the first instruction and displaying the second comment on a line immediately following the text equivalent.
8 . The method of claim 7 , wherein:
when the first instruction is a wire, the second comment is displayed proximate to one of a load instruction and a transfer instruction; and
when the first instruction is a box, the second comment is displayed proximate to a main instruction.
9 . A computer-readable recording medium having recorded thereon an executable program, the program when executed causing a processor to perform a method, the method comprising:
converting a first instruction in the first language to a second instruction in the second language; and
converting a first comment associated with the first instruction to a second comment associated with the second instruction.