Re: [sparkplug-wg] Send DBRITH message in split MQTT messages

[Bryce Nakatani <bnakatani@xxxxxxxxxx>]

You cannot split the DBIRTH publication.

You may create multiple devices that represent the single device. When publishing a DBIRTH, publish the DBIRTH for all of the cumulative devices.

On Sat, Sep 14, 2024 at 5:56 PM wang ge via sparkplug-wg <sparkplug-wg@xxxxxxxxxxx> wrote:

Hello Sparkplug Working Group,

I have one question about the DBRITH message sending details. As we are creating a Sparkplug-B connected deep embedded system(MCU based design), we can not afford to construct & send all the DBRITH content in one single MQTT message due to the resource limitation we have (mainly SRAM).

So my question is: is it acceptable to split the DBRITH message payload into multiple MQTT message on DBRITH topic? With that, we can save the ram buffer for DBIRTH message construction.

Best Regards,

Jimmy-Ge.Wang

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