OptQuest Error: Error in constraint equation

Question

question

Maryam H2 asked Jun 12 2024 at 8:57 PM Logan Gold commented Jul 03 2024 at 11:55 PM

OptQuest Error: Error in constraint equation

I set up an integer parameter in the parameters Table and when I want to use it in constraints or objectives in the OptQuest optimization panel, I get this error " Error in constraint equation".Is the bracket a problem [param1] or anything else?

Thanks

Software Version:

FlexSim 24.1.0

optquest parameters integer

· 3

Joerg Vogel commented · Jun 13 2024 at 5:08 AM

@Maryam H2, can you provide informations like constraint statement code, screenshot of error, perhaps an example model? Thank you.

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Maryam H2 Joerg Vogel commented · Jun 17 2024 at 7:29 PM

@Joerg Vogel The constraint is [Order_Quantity_1PR]>=[PR_1_D]. both [Order_Quantity_1PR] and [PR_1_D] are parameters in Parametr Table. when this constraint is active I get the error below:

but if I change the constraint to something like this [Order_Quantity_1PR]>= 400, i do not get the error any more. both parameters are integer and the LHS of equation sets a value in a Global Table.

Do you know what would be the cause of getting this error?

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1718652416742.png (74.4 KiB)

Logan Gold ♦♦ commented · Jul 03 2024 at 11:55 PM

Hi @Maryam H2, was Jeanette F's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

If we haven't heard back from you within 3 business days we'll auto-accept an answer, but you can always comment back to reopen your question.

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Answer 1 · 2024-06-21T20:05:34Z

Jeanette F answered Jun 21 2024 at 8:05 PM

Hello @Maryam H2,

The constraint limiting value needs to be a number. You can rewrite your constraint to something like this.

[Order_Quantity_1PR]-[PR_1_D]>=0

Optimizer constraints.fsm

optimizer-constraints.fsm (117.1 KiB)

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