05.01.2024, 14:33
Hello everyone 
Since august I have had a huge problem with my modbus RS485 on my W4K.
I have a Carlo Gavazzi EM340 energy meter and a Nilan CTS602 ventilation system connected to the W4K through modbus.
But since august last year, I keep getting Operation timeout on the EM340. It still sends its values, and til W4K puts them in the trends.
The big problem is, that the control for my ventilation has stopped working with a Invalid CRC error.
I have tried everything.
New EM340.
New mainboard in the vent.
New W4K.
New Cables between everything.
New ethernet cabel.
Ethernet directly in the computer.
Downgraded to firmware 2.8.2 from 2.8.3 thinking that it maybe was a firmware error.
But still no luck!!
I have spoken with Schneider technical support for hours. And still no luck?
Does anyone have an idea to what could be wrong?
I still do suspect that it could be a firmware/software error?
Since august I have had a huge problem with my modbus RS485 on my W4K.
I have a Carlo Gavazzi EM340 energy meter and a Nilan CTS602 ventilation system connected to the W4K through modbus.
But since august last year, I keep getting Operation timeout on the EM340. It still sends its values, and til W4K puts them in the trends.
The big problem is, that the control for my ventilation has stopped working with a Invalid CRC error.
I have tried everything.
New EM340.
New mainboard in the vent.
New W4K.
New Cables between everything.
New ethernet cabel.
Ethernet directly in the computer.
Downgraded to firmware 2.8.2 from 2.8.3 thinking that it maybe was a firmware error.
But still no luck!!
I have spoken with Schneider technical support for hours. And still no luck?
Does anyone have an idea to what could be wrong?
I still do suspect that it could be a firmware/software error?