GXDLMSData

By alnardn , 12 October, 2023
Forums
Gurux.DLMS

Hello! I don't understand how to write to object. I tried to change value of hardware relay blocking switch (0.0.96.4.3.255). My goal was to turn off load relay blocker. There are code lines:
data = GXDLMSData("0.0.96.4.3.255")
data.setDataType(2, DataType.UINT8)
data.value = GXInt8(2)
reader.write(data, 2)
But nothing happens. Maybe it's not possible? Or I made something wrong?

Kurumi

2 years 8 months ago

Hi,

If you want to use a relay, you need to use a disconnect control for that.
Something like this:

d = GXDLMSDisconnectControl("YOUR_OBIS_CODE")

#Disconnect
self.readDataBlock(d.remoteDisconnect(self.client), reply)
#Reconnect
self.readDataBlock(d.remoteReconnect(self.client), reply)

BR,
Mikko

alnardn

2 years 8 months ago

I meant another thing. Load relay blocker isn't the same as disconnect control. It has different obis (0.0.96.4.3.255) and 3 states:
0 - relay is controlled by meter according to specified algorithms;
1 - relay is always open and there is no load;
2 - relay is always closed and load isn't interrupted.
In cases 1 and 2 meter can't controll relay. So my goal was to try to change it from code. Is it possible?

Kurumi

2 years 8 months ago

Hi,

If your meter supports it, it's possible. You can try that easily with GXDLMSDirector. If you can modify the value, try to change it and then write it to the meter.

BR,
Mikko

alnardn

2 years 8 months ago

Thanks for responce! And does it possible from code not using GXDLMSDirector?