Scaler

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By hejmaniok , 5 December, 2017

Forums

Gurux DLMS for Java

Hello,

I try to read ReactivePower from Load profile. ReactivePower has a scaler of 0.1 and from the blue book I can see that the unit is var-hour. I was wondering if the value that I read from the meter is already multiplied by scaler or do I have to multiply it by 0.1 to get to var-hour unit?

Thanks

Scaler

Hi,

If you read unit and scaler first (attribute index 3), it's done automatically.

BR,

Mikko

Thanks for the reply. This

Thanks for the reply. This makes sense.

I have one more question regarding scaler and unit. I am trying to save those to database and when I do this:

if (it.getObjectType() == ObjectType.REGISTER || it.getObjectType() == ObjectType.EXTENDED_REGISTER) {
GXDLMSRegister reg = (GXDLMSRegister) it;
object.put("scaler", reg.getScaler());
object.put("unit", reg.getUnit());
}

Scaler is read fine but Unit always becomes `NoUnit`. Do you know what could be possibly wrong here?

As a note, when I read REGISTRIES using Gurux Director unit is displayed correctly.

Thanks

Scaler

Hi,

You need to read it first.
client.Read(it, 3);

BR,
Mikko

Yes, and for that I am using

Yes, and for that I am using `readScalerAndUnits()` method from the Gurux official example.

This should be enough right?

Scaler

Hi,

Can you compare same OBIS codes using GXDMSDirector and Java. They should be same.

BR,

Mikko

Hi,

Hi,

If I use example client and use readRowsByRange is scaler automatically applied?

Thanks

Hi,

Hi,

If I use example client found on your GitHub and use readRowsByRange is scaler automatically applied?

Thanks

scaler

Hi,

Yes, it's scaler s used automatically if the target is Register and scaler is read.

BR,

Mikko

In my case I read

In my case I read ProfileGeneric and I don't know if the values I receive are already multiplied by scalers.

Ok I figured this one out.

Ok I figured this one out. When I read ProfileGeneric only using readRowsByRange, scalers are not automatically applied.

Thanks for your help Mikko

scaler

Hi,

If the register is found from association view and it's read scaler is used automatically also with Profile Generics.

BR,
Mikko