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hanszwicky asked

ET112 energy meter and zigbee-rs485/usb converter

Dear all,

As this topic seems unfortunately to pop here and there from time to time, I was wondering if someone managed to get the connection to work properly between ET112 and Cerbo GX through

DRF2659C (rs485 to zigbee)

DRF2658C (zigbee to usb, connected to cerbo)


I am stuck with doing tests with DTK software as indicated here: https://community.victronenergy.com/questions/153482/energy-meter-et112-zigbee-ccgx.html?childToView=241149#answer-241149


I have set the coordinator and router preference and I cannot get any Rx/Tx to flash quickly on any side of the link. I can only get the RS485 side to have slowly flashing Rx/Tx after I press quickly 3 times on the function buttong.


I do have some xiami sensor at home probably speaking in zigbee as well, as per the documentation this can be an issue, but unfortunately I cannot do otherwise.

Any way to check what is going on with adressing ?

Thank you in advance for your help

cerbo gxrs485et112 pv readings
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2 Answers
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hanszwicky answered ·

I have searched this topic for hours, and collected a set of software, documentation, etc...

I am currently stuck, as I cannot use DTK electronics zigbee module firmware flashing application with the rs485/zigbee adapter. I ordered a rs485-usb adapter online to pursue my debugging journey.


I noted that nobody online shares their local config in terms of zigbee channel + PAN ID. The default as per the vendor documentation are the following:

screenshot-2023-11-07-at-110834.png

Unfortunately, channel 22 and Pan ID 199B didn't seemed to work for me. I will need to check exactly what parameters where flashed on the router device when I'll have the proper adapter.

See also relevant documentation from the vendor here:

drf-zigbee-module-v52e.pdf


screenshot-2023-11-07-at-110834.png (375.6 KiB)
drf-zigbee-module-v52e.pdf (867.9 KiB)
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hanszwicky answered ·

Ok, as soon as I received my usb to RS485, I understood why the setup was not working out of the box.

Here is the default RS485-zigbee router configuration:

router-original.png

And here are my confugration after I flashed the value I wanted:

For router (RS485)

zigbee-final-router.png

For coordinator (usb, on cerbo side):

zigbee-final-coordinator.png


router-original.png (35.9 KiB)
zigbee-final-router.png (27.5 KiB)
zigbee-final-coordinator.png (36.6 KiB)
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Related Resources

Cerbo GX product page

GX family product range

Cerbo GX & GX Touch datasheet

Cerbo GX Manual

Venus root access document

Additional resources still need to be added for this topic