It depends what you want to use if for. If it is for an HVAC outdoor air inlet node (like a rooftop package) then you can apply it directly to the “Outdoor Air System Node” actuator. If you want to actuate the weather data for the entire model, then you’d need a separate, clean signal for the sensor since the actuator will step on it. For a clean signal, I would make a Schedule:File generated from a previous run by reporting the value. Then the EMS sensor goes on “Schedule Value.”
For this kind of prescribed change to weather, another way to go with no EMS is to modify the weather file. Using WeatherConverter, you would go from EPW to CSV, modify in CSV, then convert back to EPW.
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of hnoboam
Sent: Friday, January 18, 2013 12:01 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Re: How do I override a temperature sensor?
OK, thanks.
Then how do I make E+ to use OAT_SENSOR_MOD value? I could not find any reference to "Outdoor Dry Bulb" in the IDF.
Homero
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Griffith, Brent" wrote:
>
> 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
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