question

dougdurbin avatar image
0 Likes"
dougdurbin asked Jason Lightfoot commented

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

FlexSim 21.0.1
process flowconveyorflexsim 21.0.1speed
manufacturing-model.fsm (2.6 MiB)
5 |100000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 12 attachments (including images) can be used with a maximum of 23.8 MiB each and 47.7 MiB total.

1 Answer

Jason Lightfoot avatar image
0 Likes"
Jason Lightfoot answered Jason Lightfoot commented

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
5 |100000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 12 attachments (including images) can be used with a maximum of 23.8 MiB each and 47.7 MiB total.

dougdurbin avatar image dougdurbin commented ·

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 Likes 0 ·
Jason Lightfoot avatar image Jason Lightfoot ♦♦ dougdurbin commented ·
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 Like 1 ·