Bus lock

[ucez]

Just got a bus lock, no new hardware, so sure what caused, but disconnected power and now working. Is there a way to disable functionality if a bus lock does occur? In my case it dumped my entire alk reservoir...would really like to avoid that again.

[ucez]

It looks like the salinity expansion/probe might have been the culprit. The salinity went from 30 to 6 instantly sometime before I noticed the bus lock. I tried cleaning the probe and unplugging the salinity expansion, still reads 6. There was a moment when I was fussing with the connection to the expansion hub that it read 30, but just for a moment.

Question is how do I tell if it's a bad salinity module or probe?

[rimai]

If you short out the BNC on the salinity module it should start reporting numbers, in which case it would probably be the probe.

[ucez]

How do I do that?

[rimai]

Use a paper clip

[ucez]

So if shorting out means jamming the paperclip into the hole where the salinity probe connects, then no it did not report any numbers, so assuming the module is the culprit.

I really like having salinity monitor, but a little nervous about this happening again. Can I chalk this up to a random occurrence or is does this happen more often?

[rimai]

The bus lock usually will be present when you start having issues on the connectors/cables.

[ucez]

Checked with cable from expansion module, worked fine. Cable looks like USB to mini B?

[rimai]

Correct

[ucez]

Excellent. Thanks.