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john30 / ebusd

daemon for communication with eBUS heating systems
GNU General Public License v3.0
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connection but no connection? #337

Closed minitrue-nl closed 4 years ago

minitrue-nl commented 4 years ago

Hi, For more than a year I had ebusd running on my linux server trough eseras usb coppler without problems, but now (after adding another usb-device) I encountered problems.

Ebusd seems to run just fine as a program, but doesn't seem connected with the ebusd anymore. I used to have a full set up which could read all comunnication from vrc700, heatpump and everything.

ubuntu@homeserver:~$` ebusctl info version: ebusd 3.4.v3.3-51-g57eae05 update check: revision v3.4 available signal: acquired symbol rate: 59 max symbol rate: 147 reconnects: 0 masters: 1 messages: 11 conditional: 0 poll: 0 update: 4 address 31: master #8, ebusd address 36: slave #8, ebusd

if I run sudo ebusd -f -c /tmp --logareas bus --loglevel info --lograwdata=bytes -d /dev/ttyUSB0 I see that there is a connection and data is coming in, but lots of the messages are >ff in stead of >aa as described in the docs. Could this be a hint to a solution? I rember from my first set up I actually saw the >aa's

john30 commented 4 years ago

in most cases this is due to another device connected to the UART or another software using it for different purposes. I'd recommend changing from /dev/ttyUSB* to /dev/serial/by-id/... to prevent a reboot or plug in of another USB device to ruin your configuration

minitrue-nl commented 4 years ago

Thanks, that pointed me in the right direction. There was still another (modbus) program running in the background, messing with the /dev/ttyUSB0.