Hi @ngoncalves , after forwarding your observation again, the “LoRa-radio-packet-definitions” document has been updated and indeed corrected -> “Byte order:
If not specified differently, byte order will be LSB first“.

So thank you again for this valuable feedback and warm regards!

Asked Zenner’s support, and re-join is an operation that requires a manual intervention, via a mobile phone using NFC.

While I understand the rationale behind this, physical access to a water meter is not trivial. A better solution would be fo the water meter to use LoRa’s LinkCheck MAC command and re-join if necessary.

After trying to decode some of the payloads, it is clear that little endian is used everywhere.

But its suprising that the manual says it uses big endian.

Hi Nelson, if no other member will respond to this question soon who may already have experience with this: Due to the fact that we cannot deliver here real support, the best way would be also here to contact the ZENNER Support at support@zenner.com. There for sure you will get the needed answer. Maybe you can then also share the answer here… Read more

Hi Nelson, if no other member will respond to this question soon who may already have experience with this: Due to the fact that we cannot deliver here real support, the best way would be to contact the ZENNER Support at support@zenner.com. Here for sure you will get the needed answer. Afterwards, it would be awesome if you can maybe share… Read more

Hello,

 

We had a Zenner IUWS joining our LoRa gateway. After which it sent a few uplinks. However, the gateway has an inactivity monitoring feature, where devices that do not send at least one uplink every 12h are removed from the network.

Because the next uplink of the water meter was the daily consumption (24h latter), the… Read more

Hello,

 

We had a Zenner IUWS joining our LoRa gateway. After which it sent a few uplinks. However, the gateway has an inactivity monitoring feature, where devices that do not send at least one uplink every 12h are removed from the network.

Because the next uplink of the water meter was the daily consumption (24h latter), the… Read more

Hello,

On the document “Lora radio packet definitions” v1.34, it states that big endian is used (chap 2.2, “If not specified differently, byte order will be MSB first.”)

And on the “IUW-IUWS User guide for system integrators” v1.9, there are some LoRa packet examples on page 41. And in these, it appears that little endian is used to… Read more

Hi @greedy , the best way as mentioned before should be to directly contact the ZENNER Support at support@zenner.com. They can give you all available documents for that.

Warm regards 🙋‍♂️

Hello,

I’m alos trying to integrate water meter Zenner, model IUWS DN15 R500 FK into my gateway and i want to ask where do you get the documentation for the payload codec or a codec from? (i think all zenner water meter IUWS use the same codec)

Can anyone help me with this?

Thank you.

Hello @Balle-Larsen , perhaps @Laxr7 still has some helpful information for you based on his experience (if you haven’t already been in contact with him directly). Otherwise, we can also recommend that you contact ZENNER Support at support@zenner.com . They will certainly be able to help you further, possibly with additional… Read more

Hello Laxr7 & community,

I am trying to the same thing as you did.
I am using a Mikrotik LR8 and a Zenner IUWS v1.8.5
The IUWS is sitting on the table, so it shows dry_pipe, and zero water volume.

I have the join and accept part in place, I have the decrypt key and I receive the up-payload.

I can’t decode pipe_dry correctly with… Read more