question

hsaman avatar image

trouble with ET340 connection by new Zigbee 485(DRF2659c), USB (DRF2658c) module

Hi there,

please, let me ask for help if possible with the new zigbee RS485 (DRF2659C) and USB(DRF2658C) module that I would like to use for wireless connection of ET340 to Venus OS.

I have trouble with them to be recognized be Venus OS (2.73 and 2.80). I find out that zigbee modules come with quite new firmware v8.5 and it has ID_MODEL=USB_Serial, that I have adjusted in "serial-starter.rules", in "start_cgwacs.sh" and I have played around also with serial-starter.conf. Without success till now.

When I do wired connection all works well and ET340 is recognized as device ID:345 with 2571291A number and is visible by Venus OS . See screenshot 1.

When I set it with zigbee, there is no info about find cgwacs device. See screenshot 2.

Any suggestion what I could try is welcome? Thank you.

Best Regards,

Hynek


1. Wired connection

1635099812135.png

2. Zigbee connection

1635099981883.png

3. USB-zigbee module1635099868359.png


Venus OSEnergy Meterrs485
1635099812135.png (37.7 KiB)
1635099868359.png (122.4 KiB)
1635099981883.png (27.3 KiB)
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2 Answers
dennisawd avatar image
dennisawd answered ·

Hi hsaman,


I had exact the same issue with my installation. But managed to get it up to work.

This is how I did.

First downloaded the DTK zigbee Application software.

Change the speed to 9600.

Downloaded the Carlo Gavazzi UCS 7 - Universal Configuration Software

Connected the USB to Zigbee to the computer.

Connected the Zigbee to RS485 to the ET340 meter and power up.

Open the Carlo Gavazzi software

Select the connection menu and select the correct COM port for the USB.

The two zigbee modules will now pair, and LED will flash.

When live date coming from the ET340 meter.is shown on the computer.

Re-connect the USB to RS485 to the Cerbo GX, push the funk button 3 times and it works.


Hopes this will help you.

//Dennis

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For anyone else getting here and having a headache trying to find the DTK Zigbee Application software. Current version is here: http://www.dtkcn.com/download/DTK_Module_Setup_20211112.rar

But probably worth checking http://www.dtkcn.com/ with Chinese to English translation on to check if there's a newer version.

hsaman avatar image
hsaman answered ·

Just a little time after I write question above, I find out solution, by lowering zigbee module speed from 38400 to 9600 and suddenly zigbee communication begins and power measured appears on Venus OS main screen.

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