Failed to communicate to multiplexer (upon first set-up)

[sophey]

I am trying to set up the chi.bio’s for the first time and followed all instructions in the manuals. Still I can’t get the cb.sh software to run.
I get the following error:

….
2022-08-30 14:27:41.501374 Failed Multiplexer Comms 21 times
2022-08-30 14:27:41.503269Failed to recover multiplexer on device M7
2022-08-30 14:27:41.504693Failed to communicate to Multiplexer 20 times. Disabling hardware and software!
[2022-08-30 14:27:41 +0000] [1825] [INFO] Shutting down: Master
[2022-08-30 14:27:41 +0000] [1825] [INFO] Reason: App failed to load.

Would appreciate any help.

Thanks a lot,
Sophia

[harrison]

Hello Sophey,

I’d try unplugging and plugging everything back in. Then, also try starting the software with no reactors connected to the control computer.
Assuming you have done that, double checked all the connections are correct, power is on, etc, then I’d say the most likely explanation is the reactor may have been assembled with a defect or picked up one during shipping. In that case there isn’t a whole lot you or I can do; I’d recommend emailing Labmaker and letting them know (send a screenshot of the error), and they should be able to sort it out for you

harrison

[sophey]

I just tried to run the software without any reactor connected and that worked. I then connected one (m7) and that one I can see online but when I press the “start” button I get these error messages:

2022-08-30 14:55:17.196885 Trying to communicate with absent device – bug in software!. Disabling hardware and software!
[2022-08-30 14:55:17 +0000] [3254] [INFO] Shutting down: Master
[2022-08-30 14:55:17 +0000] [3254] [INFO] Reason: App failed to load.

I did download the newest release of both cb.sh and app.py from github and replaced teh old files as it was suggested.

• This reply was modified 2 years, 2 months ago by sophey.

[sophey]

It seems to have resolved itself. I will come back if the error returns and persists – thanks for the super fast reply.

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