How to get the max content statistics of a conveyor system?

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Victor Alejandro HT asked Jan 19, '19 Joerg Vogel edited Feb 15, '19

How to get the max content statistics of a conveyor system?

Hi all,

I want to get the max content of a conveyor system ( made of 3 conveyor elements). I tried with the composite WIP chart but it only show the current content of the system. I tried with the statistic collector but register the max content of every single conveyor element and also tried with the old legacy templates but still doesn´t show the number I need. I attached an image and the model.

conveyor-system.fsm

Thanks for your support.

Alejandro.

Software Version:

FlexSim 18.2.2

conveyor system

1.png (64.9 KiB)

conveyor-system.fsm (33.1 KiB)

Answer 1 · 2019-01-19T18:10:29Z

Joerg Vogel answered Jan 19, '19 Joerg Vogel commented Feb 14, '19

It is the current content of all conveyors whenever an Item enters or exits the system. You can set a tracked variable to the value of the current contents of the conveyors. Or you can calculate the sum of the current content from the statistic of the conveyors by a calcluated table. 17016-conveyor-system-jv.fsm

17016-conveyor-system-jv.fsm (40.2 KiB)

· 6

Victor Alejandro HT commented · Jan 22, 2019 at 07:04 PM

Thank you @Jörg Vogel I will go for the tracked variable option.

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Victor Alejandro HT Victor Alejandro HT commented · Feb 01, 2019 at 06:20 PM

Hi @Jörg Vogel, I tried to apply your solution to my bigger model but it appears the followin error:

I also noticed that I can not write the full formula in the statistic collector, I need the sum of 10 values and I only can sum 6 due to lack of space in the value field.

Do you have any idea, how can I solve this problem. Thanks in advance.

duda.fsm

Alejandro

0 ·

duda.fsm (2.9 MiB)

error.png (10.6 KiB)

error2.png (18.8 KiB)

Joerg Vogel Victor Alejandro HT commented · Feb 01, 2019 at 07:02 PM

@Victor Alejandro HT, you can try to add more source code directly in the code editor (icon parchment roll) right of the field. The source code line ends then with a semicolon. If the line gets to long you can write in the next line further. The end of the command is the semicolon.

1 ·

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Answer 2 · 2019-02-14T18:58:31Z

Joerg Vogel answered Feb 14, '19 Joerg Vogel edited Feb 15, '19

There is an object in the tree which controls all conveyors. It is called "ConveyorSystem". Therein is a coupling node that contains all items on all conveyors. If you find an attribute that you can use to limit the conveyors, you can count the items by a table query over this node.

Object conveySystem = model().find("ConveyorSystem");
treenode conveyItems = conveySystem.attrs.variables.subnodes["items"];
double data = Table.query("SELECT COUNT($2) FROM $1 WHERE $2 LIKE 'Con%'",
    /*$1*/ conveyItems.subnodes.length, 
    /*$2*/ conveyItems.subnodes[$iter(1)].value.up.up.up.name)[1][1];
print("items on Conveyors name starting with Con ",data);

Here is the attribute the name of the conveyors starting with "Con". The attached model contains other conveyors,which names start with "veyor".

I didn't find a more elegant way to get to the name than the several ups after getting the value of the queried node. Typically a table is the result of a query, but the count clause writes the value in the first cell of such a table. Then the result can be evaluated to a number value.

count-item-on-conveyor-by-conveyor-name.fsm

two-conveyor-systems.jpg (247.9 KiB)

count-item-on-conveyor-by-conveyor-name.fsm (36.0 KiB)

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