Separator Unpack

Hi,
When i use unpack option using by expression in separator it separates the last combined item first, but i need the separator to unpack the item based on itemtype so that items can separated irrespective of the order in which they got combined.How this can be done...
Thanks,
Manoj.

Hi

This can be done by using a few objects. This way simplify the requirement of coding. Please see the model enclosed.

David

Hi David,
Thanks, Your way of using pull option solved the problem using some extra queues and combiner.
But in separator under By expression option a note which reads "
The expression may be a constant value or the result of a command (getitemtype(item), getlabelnum(item, "labelname"), etc". How to use this getitemtype(item) command to unpack the specified itemtype from separator?

Hi

What it means to remove the number of flowitem according to the expression. So if itemtype is 2, then remove 2 pieces.

If you want to implement with Separator, you need to do it manually using moveobject(). That is use Do not Release. You need to use a "for" loop to search for the itemtype that fit your requirement then move it out.

David

Hi,
can this be added to the features of seperator which saves the time needed for coding. Generally this would be case of dismantling operation in real life cases.
Thanks,
Manoj.

Hi David,
Thanks, was able to complete using moveobject() command in separator.
Regards,
Manoj.

Hi Manoj,

you can change the order of the packed flowitems before the flowitem (pallet) enters the separator. The unpacked flowitems don't activate a new stacking of the still packed flowitems. Instead you will see blank cells in the stack.
Jörg

Hi Jorg,
How the order of items packed can be changed, can this be done using rank() command or by any other means. Please explain.
Thanks,
Manoj.

That's right. Use setrank on the item as a container. The method works in a previous object. Or you place a queue in front of the separator. Put the packed item you want to separate at the last rank:
setrank(rank(item, 2),content(item)); // 2 is the rank of the item You separate

Move all the items to the end of the container and unpack the amount of those in the separator.

Jörg