Question-and-Answer Resource for the Building Energy Modeling Community
Get s tarted with the Help page
Ask Your Question

EMS Actuator using nodal values

asked 2017-10-06 04:22:08 -0500

ronh777 gravatar image

updated 2017-10-07 09:28:04 -0500

Hi All,

I'm having trouble overwriting the nodal mass flow rate of a water heater.

In the Actuator object in EMS I have:

Name : MassFlow Actuated Component Unique Name: Aux HW Loop HP Water Heater Water Outlet Node

Actuated Component Type: System Node

Actuated Component Control Type: Mass Flow Rate

I copied the Unique Name, Type, and Control Type from EDD file as shown from the contents below: EnergyManagementSystem:Actuator Available,AUX HW LOOP HP WATER HEATER WATER OUTLET NODE,System Node Setpoint,Mass Flow Rate Setpoint,[kg/s]

I get an error message both as shown above and with the Setpoint add to the last two field names. The message reads:

* Severe * GetRuntimeLanguageUserInput: EnergyManagementSystem:GlobalVariable, invalid entry. * ~~~ * Invalid Erl Variable 1 Name=MASSFLOW * ~~~ * Name conflicts with an existing global variable name I get the same error message with names different from MassFlow. I have a EMS program to calculate the MassFlow and entered it as a global variable.

I would appreciate any assistance.



edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted

answered 2017-10-07 00:58:18 -0500

Chandan Sharma gravatar image

Erl variable names in EnergyManagementSystem:GlobalVariable object should not match with any other erl variable name. Make sure that EnergyManagementSystem:InternalVariable, EnergyManagementSystem:Actuator and EnergyManagementSystem:CurveOrTableIndexVariable etc. have unique names which don't match with global erl variable name.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer


Question Tools

1 follower


Asked: 2017-10-06 04:22:08 -0500

Seen: 2,183 times

Last updated: Oct 07 '17