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  #1  
Old 06-25-2015
koenslootmans koenslootmans is offline
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Default Traffic controller issue when set TE to Queue by code on entryREquest

Hello ,

I'm experiencing the following problem.
When a certain type of TE is entering the TC area then the TC maxallowed gets set to 1. This will then make other TE wait to enter the area untill the other TE is out.

This works only partly, the next TE to enter the area will wait, however he will never enter the area not even when the first TE leaves the TC area, causing the TE to freeze. Other TE's that try to enter the area after the 1st TE is out have no problem to enter the aisle.
Do i need to record somewhere the guys that got put in queue to then trigger them to resend a request to enter the area at a point of time? and if so how do i do this?

I wrote the following code on the onentryrequest trigger of the traffic controller.

/**Custom Code*/
treenode traveler = parnode(2);
treenode TC = parnode(1);

treenode variable = getvarnode(TC, "maxactive");
int testvar = getvarnum(TC,"maxactive");


if(tonum(inobject(traveler,1)) == tonum(DispatcherSpareReplenishmentRucks) ) //is this one connected to the replenishment trucksDispatcher, if so we close the aisle for other traffic
{
treenode mylabel = getlabel(traveler,"CurrentAisleTC");
setnodenum(variable,1);
if(!objectexists(mylabel))
{
addlabel(traveler,"CurrentAisleTC");
}
setlabelnum(traveler, "CurrentAisleTC", tonum(TC));
return TC_ON_ENTRY_REQUEST_ALLOW; //means that this guy is not controlled by the traffic control (I put it to 0 when he finally enters the TC)
}
else if( testvar <= 1)
{
return TC_ON_ENTRY_REQUEST_QUEUE; //Just tried if this makes a different from default but it does not
}
else
{
return TC_ON_ENTRY_REQUEST_DEFAULT;
}
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  #2  
Old 06-25-2015
koenslootmans koenslootmans is offline
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Default

I build a test model, in which i didn't change the onexit trigger of my TC (Wich i did modify in the other model) and this seems to be the reason why the TE's got stuck.

What should i put in the onexit trigger to let the TE's back into the model

at the left you see the example with the modified "onexit" trigger and on the right a solution without an onexit trigger...
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File Type: fsm trafficcontrolissue.fsm (82.0 KB, 306 views)
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  #3  
Old 06-25-2015
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RalfGruber RalfGruber is offline
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Koen,

you find all the information you need to allow a traveler into the controlled area if you look up the command "trafficcontrolinfo()" in the command help. Here is the specific one you are looking for, but go through all parameters explained in the user manual:

trafficcontrolinfo(tc, TCI_ALLOW_ENTRY, num requestnr) - Calling this command will instruct the traffic control to allow the traveler associated with the nth entry request to enter the traffic control area.

Good luck

Ralf
FlexSim
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  #4  
Old 06-25-2015
Kris Geisberger Kris Geisberger is offline
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Koen,

TC_ON_ENTRY_REQUEST_QUEUE indeed works, I have posted a model to your original thread that demonstrates its use.
https://www.flexsim.com/community/fo...ad.php?p=14207

Enjoy!
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