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Hello, I am trying to change the wall construction dynamically using EMS to simulate the shifting position of a PCM layer within the wall based on a condition statement. However, I am encountering an issue related to the number of finite difference nodes. The following error message appears, even though both constructions have the same thickness and number of layers:

"* Severe * InitEMSControlledConstructions: EMS Construction State Actuator not valid. * ~~~ * Construction named = WALLPCMEXTERNAL has number of finite difference nodes =10 * ~~~ * While construction named = SISOPENhas number of finite difference nodes =0
* ~~~ * This actuator is not allowed for surface name = SIS, and the simulation continues without the override"

I have tried using HeatBalanceAlgorithm: ConductionFiniteDifference and adjusting the timestep settings to control the number of nodes, but the issue persists.

What could be causing this , and how can I resolve it?

Thanks in advance for any guidance!

Hello, I am trying to change the wall construction dynamically using EMS to simulate the shifting position of a PCM layer within the wall based on a condition statement. However, I am encountering an issue related to the number of finite difference nodes. The following error message appears, even though both constructions have the same thickness and number of layers:

"* Severe * InitEMSControlledConstructions: EMS Construction State Actuator not valid. * ~~~ * Construction named = WALLPCMEXTERNAL has number of finite difference nodes =10 * ~~~ * While construction named = SISOPENhas number of finite difference nodes =0
* ~~~ * This actuator is not allowed for surface name = SIS, and the simulation continues without the override"

I have tried using HeatBalanceAlgorithm: ConductionFiniteDifference and adjusting the timestep settings to control the number of nodes, but the issue persists.

What could be causing this , and how can I resolve it?

Thanks in advance for any guidance!

Hello, I am trying to change the wall construction dynamically using EMS to simulate the shifting position of a PCM layer within the wall based on a condition statement. However, I am encountering an issue related to the number of finite difference nodes. The following error message appears, even though both constructions have the same thickness and number of layers:

** Severe  * ** InitEMSControlledConstructions: EMS Construction State Actuator not valid.
* **   ~~~   * ** Construction named = WALLPCMEXTERNAL has number of finite difference nodes =10    * =10
**   ~~~   * ** While construction named = SISOPENhas SISOPEN has number of finite difference nodes =0 
 *  
**   ~~~   * ** This actuator is not allowed for surface name = SIS, and the simulation continues without the override"
override