Conveyor Speed in Process Flow

Question

question

dougdurbin asked Jan 7, '21 Jason Lightfoot commented Jan 10, '21

Conveyor Speed in Process Flow

I'm looking at the question asked here: https://answers.flexsim.com/questions/36162/can-you-set-the-speed-of-a-conveyor-from-processfl.html

In the attached model I'm trying to figure out a way to change the conveyor speed through the process flow using:

Table GlobalTable = reftable("GlobalTable"); conveyorsetspeed(conveyor, GlobalTable[rownum][colnum]);//setting speed of a conveyor from a global table cell value

In my model I'm trying to use the custom code activity at the top of After Punch Press process flow labeled "Change Conveyor Speed":

Table GlobalTable = reftable("Conveyor Speed"); conveyorsetspeed(Group("Station 1 Conveyors"), GlobalTable[1][1]);//setting speed of a conveyor from a global table cell value

It seems like it's not overwriting the speed under "Conveyor Behavior" in the properties tab. Is there a better way to do this in a process flow?

Manufacturing Model.fsm

Software Version:

FlexSim 21.0.1

process flow conveyor flexsim 21.0.1 speed

manufacturing-model.fsm (2.6 MiB)

Answer 1 · 2021-01-08T09:33:00Z

Jason Lightfoot answered Jan 8, '21 Jason Lightfoot commented Jan 10, '21

manufacturing-model_convSpeed.fsm

Doug, there was no Custom Code activity called "Change Conveyor Speed" in the model you uploaded that I could see.

The best thing might be to get an array of the conveyors using an "Assign Labels" activity where the expression is Group("Station 1 Conveyors).toFlatArray(), and then call a subtask that creates a token for each conveyor using token.conveyors.length as the quantity and token.conveyors[creationRank] as the value of the Conveyor label. The in the subflow you can use the standard pick option for settting a conveyor speed which sets the 'targetSpeed' attribute (conveyorsetspeed is deprecated).

I've attached an example in your model that does this at time zero reading from your Global Table.

1610098312503.png (17.4 KiB)

manufacturing-model-convspeed.fsm (2.6 MiB)

· 2

dougdurbin commented · Jan 08, 2021 at 06:03 PM

I must have taken out the code before I saved and before I attached here. Are the speed units based off of the model settings or are they based off the speed units representation under "Conveyor Behavior"? I assume this code overwrites the conveyor speed on reset?

0 ·

Jason Lightfoot ♦ dougdurbin commented · Jan 10, 2021 at 01:17 PM

Setting the targetSpeed of the conveyor is done in units consistent with the model settings - not the Conveyor Behaviour. The speed value and units on the conveyor behaviour is used to set the value on reset.

1 ·

question