Change fixed interval via code?

Question

question

Craig DIckson asked Jul 21 2016 at 9:27 PM Adrian Haws edited Jul 22 2016 at 9:32 PM

Change fixed interval via code?

Hi-

I am using a fixed interval conveyor, and I want to be able to set the interval on model startup, based on a value in a table (read from Excel).

I used the picker to select that node, and got the node. How can I change the value?

node("/ConveyorSystem>variables/conveyorTypes/ConveyorType2/fixedIntervalPattern/1", model());

For other conveyor attributes like speed the picker can also give you a pointer to the table with the data and you can change that:

double dSpeed = 4;
settablenum(getvarnode(node("ConveyorSystem", model()), "conveyorTypes"), 2, 16, dSpeed);

Any suggestions?

Thanks

Craig

Software Version:

FlexSim 16.0.1

conveyor power and free conveyor fixed interval conveyor

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Answer 1 · 2016-07-21T21:53:58Z

Jeff Nordgren answered Jul 21 2016 at 9:53 PM Adrian Haws edited Jul 22 2016 at 9:32 PM

@Craig DIckson

You should be able to use the setnodenum() function to set the value in your first example:

setnodenum(node("/ConveyorSystem>variables/conveyorTypes/ConveyorType2/fixedIntervalPattern/1", model()));

In your second example, the getvarnode() function is getting a value from the table, not a reference to the node (or in this case the table). You need to do the same thing as in your first example, get the reference to the table using, reftable(), then set the table value in the table using the settablenum() command. If you would like to send in your model or a sample, we could show you how to do it. But this may give you the information you need to proceed.

· 3

Craig DIckson commented · Jul 21 2016 at 10:39 PM

@Jeff Nordgren

Jeff,

Thanks, that gets me closer. Now it does set the value, but it doesn't take effect until you reset the model, which unfortunately kind of defeats the purpose. Is there another command that forces the change?

By the way, my second example does seem to actually work, though it too requires a reset to take effect.

Here is the code I have now:

// Speed m/s
double dSpeed = gettablenum("Inputs_Equipment_UnitSorter_1", 6, 1);
settablenum(getvarnode(node("ConveyorSystem", model()), "conveyorTypes"), 2, 16, dSpeed);
 
 
double dInterval = 3; //gettablenum("Inputs_Equipment_UnitSorter_1", 7, 1);
setnodenum(node("/ConveyorSystem>variables/conveyorTypes/ConveyorType2/fixedIntervalPattern/1", model()),dInterval);

Thanks,

Craig

0 ·

Joerg Vogel Craig DIckson commented · Jul 21 2016 at 11:59 PM

Please look for yourself for answers of @phil.bobo when he has written about the conveyor module to change the position of decision points, photoeyes or length. There are some commands to execute if you want update the conveyor system by code without reseting the model. Maybe you must search the old forum, too.Old Flexsim Forum

1 ·

Phil BoBo ♦♦ Joerg Vogel commented · Jul 22 2016 at 1:08 PM

@Craig DIckson

https://www.flexsim.com/community/forum/showthread.php?p=15056

2 ·

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