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> You mean like, just hang a thumb drive on a lanyard inside of the cabinet -- with source code and such? This guy is very happy when someone literally does th
by palmotea 3mo ago
> You mean like, just hang a thumb drive on a lanyard inside of the cabinet -- with source code and such?
This guy is very happy when someone literally does that: https://www.youtube.com/@Cursed_Controls https://www.youtube.com/@Cursed_Controls (great channel btw), because usually he has to deal with worse.
> And if it includes the programming software, then that lets Joe (from over in shipping) have a go at rejiggering the packaging machine. That's a problem for whoever has to pay someone with a clue to show up and fix it.
You'd think Joe from shipping wouldn't be given a key to the cabinet with the PLC.
- thyristan 3mo agoThe PLC is usually in a control cabinet that can be opened by a control cabinet key: https://www.knipex.de/schaltschrankschluessel?v=2921 https://www.knipex.de/schaltschrankschluessel?v=2921 Real locks in such systems are rare, sometimes even disallowed. Usually, a lock with a real key is only used to temporarily prevent switching on a machine during maintenance or such.
- palmotea 3mo ago> The PLC is usually in a control cabinet that can be opened by a control cabinet key: As far as I can tell, that thing's $50. Why would Joe from shipping have one? > Usually, a lock with a real key is only used to temporarily prevent switching on a machine during maintenance or such. Most locks aren't really meant to resist and adversary. They're meant to communicate who is allowed and who is not, and back that up by making violations a little non-trivial.
- thyristan 3mo agoThat's the first search engine hit I've pasted. The cheap ones that work just as well are single-digit prices. And usually there is one in every toolbox on the shop floor. Edit: if you need proof, 2 for 6.50€, shipping included: https://www.ebay.de/itm/277671545941 https://www.ebay.de/itm/277671545941