System title

By andre538 , 12 August, 2026
Forums
DLMSDirector

Hello Mikko,

I'd like to ask you about System title field structure.

As I know, Server system title is 8 bytes long, first 3 bytes is manufacturer code and 5 more are meter serial.

I never thought that System title must obey some rules too except 8 bytes long,
so I named it in my case as 'homepc08'

Recently I've noticed that DLMS Director in Translator dialog is trying to decode this field as

<!-- IDIS system title:
Manufacturer Code: hom
Device type: IDIS package1 PLC polyphase meter
Function type: Disconnector, Load Management, Multi Utility
Serial number: 6500408
-->

with help of IsT1, isT2 in GXCommon.cs

So the question is how should I name my local PC system title to get rid of such translation. Should I imagine some manufacturer code and some serial for my local PC or something else?

Best regards, Andre

Kurumi

1 min 13 sec ago

Hi Andre,

The system title depends on the DLMS standard being used and on whether the device is a meter or a client.

The structure of the system title is defined in the IDIS standards. As you mentioned, DLMS specifies that a meter's system title typically consists of a three-character manufacturer Flag ID followed by the meter's serial number.

On the client side, you can usually use any system title you want. However, some Italian meters may require a specific client system title; otherwise, the meter may reject the connection.

This is ignored if the third character is not between b-h. The system title is shown in DLMS format If you change the system title, e.g. HOMEpc08

BR,
Mikko