Reading data from a Landis Gyr E550 meter

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By arian.mares , 15 March, 2022
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DLMSDirector

Hi,
I've managed to connect to the meter on the optical interface but I cannot do the same connection on the RS232 interface. Would someone managed to do this connection and can help me with information about settings, cable pinout, etc?

Thank you,

Arian

arian.mares

4 years 2 months ago

I've noticed that the meter used to have a modem before. Maybe the modem configuration have to be removed?

Kurumi

4 years 2 months ago

Hi,

Model settings usually don't affect serial port settings. If you can read the meter using an optical probe find IEC HDLC setup object and check what is serial port baud rate.
https://www.gurux.fi/Gurux.DLMS.Objects.GXDLMSIecHdlcSetup

Then change baud rate and change interface to HDLC and try to connect. If it will fail, you can try to use GXDLMSDirector "HDLC Address resolver".
https://youtu.be/BeaWKmyMwuE

BR,
Mikko

arian.mares

4 years 2 months ago

Hi Mikko,
I've already done this, the settings are ok. I've tested with a serial port sniffer and the meter outputs nothing. I suspect a hardware issue on that serial port or on the meter. Keep investigating.
Thank you,

BR,
Arian

Kurumi

4 years 2 months ago

Hi Arian,

The reason is usually in serial port settings. Sometimes the cable isn't correct, but usually, it's the baud rate.

BR,
Mikko