question

@Titli D The arrival rate is determined by the source or any other process that feeds the queues. The clearing is the time on the processor. Or am I missing something?

@steven.hamoenThe mistake I did was, I did not connected Dispatcher to Queue1. Now after connecting Disptacher with Queue1, there are 2 center connections: 1. Operator and 2. Dispatcher. And i wrote the code : same like yours. now it makes sense.

@Titli D You have written some errors in your code:

1. you declare portnum but you don't initialize it (it does not get a value)

2. in the last else you use portnum but it has no value so this will never work

3. there are only 2 center connections. 1 to operator 1 and the other one is to the dispatcher so centerObjects[3] points to nothing.

the variable port is passed in and that is the port that the queue is sending the items to. So I guess that your code should look something like this:

if( port == 1)
{
    return current.centerObjects[1];
}
else
{
    return current.centerObjects[2];
}

But this option is also available as the "Multiple Transport Option" and then those "port" as Value and Centerport 2 as default value and Centerport 1 with case 1

@steven.hamoen I am getting an issue. Need your help:

Model: Total 4 parallel stations. Station1, Station2 and Station 3 connected to Queue1. Station 4 connected to Queue2. There are 3 operators: Operator1 is connected to Queue1 and Station1. Operator2 and Operator3 are connected to Dispatcher. And Dispatcher connected to Queue2 and Station 2, Station3, Station4. The scenario in my model is: Operator1 will be fixed to Station1 and Operator2 and Operator3 will flex between Station2, Station3, Station4. In the Queue1 I have written the following logic in "Use Transport" of Queue1:

int portnum;

if( port == 1 ) {

returncurrent.centerObjects[1];

} else if( port == 2 ) {

return current.centerObjects[2];

} else if( port == 3 ) {

return current.centerObjects[3];

}

else {

return current.centerObjects[portnum];

}

But writing this code only the Station 1 is processed by Operator1. And Station2 and Station3 is idle. Station 4 is working by both Op2 and Op3. How should i modify this code so that Op2 and Op3 works on Station2 Station3 and Station4?