lks file from Lookout 5.1 not compiling in Lookout 4.5

[rfoote]

I recently asked about issues with Lookout 4.5 and windows XP...

This was one of them, but now it looks like a lookout issue.

I write my processes in 5.1 and some of our customers are still using 4.5. Well, 4.5 refuses to compile lks files that I write in 5.1. Tried it on several machines with new installs of 4.5. Same result.

Others I talk to say maybe it's true, you can't write for 4.5 from 5.1.

This CAN'T be true, can it?

[Ricardo_SR]

Hello,

You can compile a Lookout 5.1 to 4.5 or previous version but it is not straight forward. The reason is that version information and also it depends if you are or not using any object that is only for Lookout 5.1.
Our software is backwards compatible, meaning that you can open a Lookout 4.5 process in a Lookout 5 or 6 machines, but definitely there are new things added in newer versions that previous versions do not support.
What you can do is open your lks file in a notepad and edit it to change the version number information and delete or modify any object that is only available in Lookout 5.

Ricardo S.
National Instruments

[rfoote]

Thanks Ricardo

I will try that. I assume the version number you speak of is the one below all the comment stuff surrounded by asterisks?

How would one ascertain which objects are new to 5.1 vs 4.5?

My process in question only uses standard guages, expressions, pushbuttons, hypertrends etc.

[Ricardo_SR]

Hello,

You can check the Release Notes for Lookout 5.1 to see which are the new objects.
For the type of objects that you are using, it seems that it should be fine. If you still have lookout 4.5 what you can do is create a very simple process file with one or two objects or with the objects that you are using, and then do the same in Lookout 5.1. Then compare them and see what the differences are.


Ricardo S.
National Instruments

[rfoote]

Thanks Ricardo

I will try that... While I don't have 4.5, I do have process files I duplicated (by hand) in 4.5 to compare.