Hello all,

I have recently been introduced to some programming style terms I do not understand in relation to some programming standards that I am told to follow for the current project i am on. Vague No ?

What is Inline Programming ?

What is Indexing Programming ?

I am not allowed to use Indexing, but I am allowed to use Inline, So what are the differences.

Thanks,
Marc

Are you refering to ONLINE programming,

or are you refering to INDEXED and INDIRECT addressing?

I know the difference about Online programming, it is this spec which is unclear, I shall quote directly

" The standard method of coding at XXXXXX shall be Allen Bradley Ladder code for Logix processors. Function Block Diagram shall be used in Analog Control Loop situations. The method of coding shall be InLine Duplication (?) Indexing shall not be allowed as standard."

Can someone Clarify this Inline duplication ?

Thank,
Marc

I think what they are saying is that indexed addressing cannot be used. So you must have in line duplication of the code.

Instead of having one piece of code with indexed addressing for x number of iterations.
You must have x pieces of code to accomplish the same function.

That seems odd. Some operations, CPY, FLL and FAL, are inherently indexing.



Since this is a corporate prgramming standard then I suggest you have them clairify it. Whoever wrote it may actually not have a clue and might have intended something else.

Sounds to me like a corporate programming standard written by Joe Relay. He wants to see a rung for every output and all inputs so they can be monitored in code. Indirect or Indexed addressing using subroutines while faster to write is often more difficult to troubleshoot for the average electrician. The suggestion to check with corporate is an excellent one.

Bobb...heh heh heh. .. only kidding mate... could,nt resist...