alt Hacker NewsAnd if you need to alter the initial settings, you do what? Also, your solution is negating one of the biggest benefits of remote control: less errors from tech on the ground.
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Something akin to Mikrotik's "device mode".
https://help.mikrotik.com/docs/spaces/ROS/pages/93749258/Dev...
If I have to enable a privileged operation (like enable container support), I have to change a device-mode flag. To confirm it, I have to either physically push the Reset button on the device or pull the power from it physically within a set window of time.
Push the setting to the freezer but require a physical button press/power control action from someone locally to confirm the new setting change.
Have a big pop-up message on the HMI that says "TEMP CHANGE REQUEST: CURRENTLY 0C, REQUESTED 66C - OK?" so someone can yelp and go This doesn't look right! and call in the experts for help.
Is it perfect? No. Could it be feasible for some applications? Yes.
A human makes the change locally. For example the manager in a grocery store.
Grocery chains are removing control from stores to HQ in all kinds of ways to cut cost, this is a symptom of that.