Yes, it is circular. This is a common problem with EMS. Separation of sensor and actuator is usually needed.
IF you just want to modify the sensor then you can use:
Set OAT_SENSOR_MOD = OAT_SENSOR + 6,
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of hnoboam
Sent: Friday, January 18, 2013 11:53 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Re: How do I override a temperature sensor?
It shows the OAT going up by 6 degrees each time step:
SETOAT,Line 1,SET OAT_ACTUATOR = OAT_SENSOR + 6,1.400000,
SETOAT,Line 1,SET OAT_ACTUATOR = OAT_SENSOR + 6,7.400000,
SETOAT,Line 1,SET OAT_ACTUATOR = OAT_SENSOR + 6,13.400000,
The simulation ends when the OAT reaches the toasties 421.4 deg C. :-)
Evidently when I read the OAT I'm not reading the original value from the weather file, but the already increased one.
Thanks for your help
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Richard Raustad wrote:
>
> What does the edd file show?
>
> Use:
> Output:EnergyManagementSystem,
> Verbose, !- Actuator Availability Dictionary Reporting
> Verbose, !- Internal Variable Availability
> Dictionary Reporting
> Verbose; !- EMS Runtime Language Debug Output Level
>
>
> On 1/18/2013 1:33 PM, hnoboam wrote:
> > I would like to override a temperature sensor, for example I want to give the Outdoor Dry Bulb an offset of 6 C.
> > So I created an EMS Sensor:
> > EnergyManagementSystem:Sensor,
> > OAT_Sensor, !- Name
> > , !- Output:Variable or Output:Meter Index Key Name
> > Outdoor Dry Bulb; !- Output:Variable or Output:Meter Name
> >
> > and an EMS actuator
> > EnergyManagementSystem:Actuator,
> > OAT_
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