topic Re: DP value Change for each time table in FlexSim Forum

DP value Change for each time table

kimsh — Thu, 29 Feb 2024 18:37:35 GMT

[ FlexSim 23.2.2 ]

Hi,

is there a way to add DP (on arrival - enter restricted area - max count : 100) to the modeling, and then it works because the max value changes for each time schedule I want? When it took a break in the middle of the simulation, I changed the max value from 100 to 106 and it didn't apply and it stopped in that DP.

Re: DP value Change for each time table

Jeanette_Fullmer — Thu, 29 Feb 2024 22:29:20 GMT

Hello @kimsh,

You could implement changing the value in process flow, but in my case I am just using a script window.

In the first case, I use a global variable.

DP restricted area.fsm

In this other case, I use a label on the DP.

DP restricted area_1.fsm

One thing to note, it's when an item leaves the restricted area that the new max content is observed. So just changing the max content value will not immediately release more items. If you need this, please let me know and I have an idea of sending a message to the DP to release item when the max content is changed and the current content is less than the new max content.

Re: DP value Change for each time table

kimsh — Thu, 29 Feb 2024 22:50:55 GMT

Oh, can you tell me if you have a good way? To briefly explain what I want, it looks like DP1(ENTER AREA MAX50) is installed at the entrance of the 200 meter conveyor and DP2(EXIT AREA) is installed at the end of the conveyor. And, there is a break time at the end of the conveyor every specific time. If the 50 pieces I set are full thanks to the break time, they can no longer be put in the line. This is a normal situation. But!!! Here I need a way to change DP1 from 50 to 60 according to the schedule I set separately (06:00~10:00=50 pieces / 10:00~14:00=60 pieces~~~~~~). Is there any way?

Re: DP value Change for each time table

Jeanette_Fullmer — Fri, 01 Mar 2024 13:51:19 GMT

Hello @kimsh,

I just used a schedule source in process flow to set the values.

DP restricted area_2.fsm

Re: DP value Change for each time table

kimsh — Sun, 03 Mar 2024 06:50:51 GMT

dp-restricted-area-schedule.fsm

good!!! Did act well! but,

I have a problem.

I applied data at source edit table

06:00~22:00 : 106

05:00~06:00 : 300

and time table 22:00~06:00 down behavior(just DP2).

In order for DP1 to be applied with 300 data, it seems that the item needs to pass through DP2 once to be updated. I want to change from 106 to 300 from 5 o'clock and fill it up in advance before DP2 is activated at 6 o'clock. Is there any way to improve this?

Re: DP value Change for each time table

kimsh — Sun, 03 Mar 2024 07:57:11 GMT

dp-restricted-area-llll.fsm

Well, I changed the data you gave me, and I improved the problem a little by playing tricks.

It's a break time between 05:00 and 06:00, but when I apply 05:24:41 trick that start 1 second, dp2 seems to have been updated. That's why the count changed! But is there a more normal way to do it other than this?

I was going to use it like this, but if I open the file I posted here and run the simulation, the count will be set from 06:00, so until 05:00 the next day, it will remain at 96. After that, around 05:24:41 when I tricked, the brake was released and stopped for about a second, and I can see the count goes up to 300 and the line fills up.

But!!!!
The problem is weird again. If I turn it around a day like this, it'll work out normally. Next 06:00, the count should change from 200 to 96, but the item is also spaced out and the count is set to 106. What's wrong with this?!

Re: DP value Change for each time table

jason_lightfoot_adsk — Mon, 04 Mar 2024 12:36:39 GMT

You should probably add this to your model reset trigger to set the initial value depending on the start time of the model:

double tStart=Model.startDateTime-days(Model.startDateTime.totalDays.as(int));
treenode arr=getvarnode(Model.find("Tools/ProcessFlow/ProcessFlow/Source"), "arrivals");
string sql="SELECT SetDPMax FROM $1 WHERE [Start Time]<=$2 AND ([Start Time]+Duration)>$2";
DPMaxContent= Table.query(sql,arr,tStart)[1][1];

You should probably also set the end time to be after the start time on the scheduled source:

Re: DP value Change for each time table

kimsh — Wed, 06 Mar 2024 04:29:21 GMT

Where I have to attach this code?

Re: DP value Change for each time table

jason_lightfoot_adsk — Wed, 06 Mar 2024 11:54:04 GMT

The model reset trigger which you can add here:

Re: DP value Change for each time table

kimsh — Tue, 12 Mar 2024 23:44:15 GMT

oh....I must use the version 23.2. but There is not DPMaxContent. Can you teach me another variable DPMaxContent?

Re: DP value Change for each time table

moehlmann_fe — Wed, 13 Mar 2024 07:45:25 GMT

DPMaxContent is a global variable that Jeanette added to the model. Global variables can be added in the toolbox.

Re: DP value Change for each time table

kimsh — Thu, 14 Mar 2024 12:42:33 GMT

well......do not exist....

Re: DP value Change for each time table

jason_lightfoot_adsk — Thu, 14 Mar 2024 13:26:30 GMT

You need a licensed copy of FlexSim for this - please contact your local distributor.

Re: DP value Change for each time table

kimsh — Fri, 15 Mar 2024 12:00:54 GMT

Thank you