Logix AOI for timer presets

[TheRooster]

Hello all,


I am trying to improve my skills, so I decided instead of moving a value into every single .PRE of an array of timers, I thought I would use an AOI.


My plan was to input the first Timer in the array, the number of timers in the array, and the preset value. Then do a move instruction in the AOI logic for each one, or some kind of loop in structured text if I can figure that out.


I am finding that you can't input a TIMER data type into an AOI, and am seeing no way around this except to just do it in my normal logic. Any ideas? Thanks!

 

[plvlce]

You should be able to use a TIMER if it is an InOut parameter rather than Input or Output.

 

[TheRooster]

Yup that was it, thanks!

 

[Aardwizz]

You should be able to do the whole thing with an FAL:

FAL(Control,?,?,ALL,Timer[Control.POS].PRE,myPREvalue);

 

[plvlce]

I would just SIZE the array inside the AOI rather than passing the number of timers, unless you expect to sometimes not want to set the entire array.

EDIT: FAL is probably a better solution though.

 

[TheRooster]

@Aardwizz That worked perfectly! I am going to play around with this instruction I think it will be useful for a lot of things. I'm thinking of allowing the user to select a value for a range of recipes in this project, and this will allow me to distribute it all in one instruction.


@plvlce Another good instruction I wasn't aware of, thank you.

 

[Cheeseface]

Timers (and others) need to be scanned when false. So for academic purposes, you just put the timer into the EnableInFalse routine.