Process flow can't retrieve item labels.

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dong asked 2 days ago Felix Möhlmann answered 2 days ago

Process flow can't retrieve item labels.

Hello everyone, my issue is that I am using a process flow to generate an item in the queue and assign a label to it. I also use an Event-triggered source to generate a token when the item enters the queue. However, I am unable to retrieve the label value from the token's item. Thank you all for your help!test0917.fsm

Software Version:

FlexSim 24.2.1

processs flow tokens

test0917.fsm (31.2 KiB)

Answer 1 · 2024-09-17T13:28:47Z

Felix Möhlmann answered 2 days ago

Every event in FlexSim has "event data" values attached to it. For the On Entry event these are the entering item and the port through which it enters.

In the Event Triggered Source you can do one of two things with this data:

1) Assign it to a label

2) Compare it to a given value, only creating a token if they match

You need to do the first, so you have a reference to the item and can then read its labels (or other properties) through the dot syntax.

In your model the timing also doesn't currently. The Event-Triggered Source reacts immediately when the item is created in the queue and before the label is assigned to it.

Use the label assignment in the Create Objects activity, so the label is already present when the On Entry event fires.

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