Issues related to passwords in DCS systems
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I work for an automation company, and we’re facing a problem right now: it’s very difficult to get payment for our projects, with some companies refusing to pay the remaining amounts. So I think in the future, when setting up configurations, I should add a password with an expiration date: first, to ensure that Party A is held accountable for returning any remaining payments in the future ； II: It is also a form of protection for the procedures that have been carried out. I now turn to the all-knowing group members for advice. . . . . .
It’s feasible; I’ve encountered this approach before. DCS or PLCs have system clocks, which can be used as timers, allowing the program to terminate automatically when the set time is reached. It’s just that, when the final payment is received and this restriction is to be lifted, one will need to choose an engineer who is not too cautious
However, some chemical plant processes are very dangerous; stopping them outright would be problematic, as an accident could result in losses that outweigh any benefits
There are functions that provide such capabilities, but this approach is not advisable. Not only does it result in economic losses due to the factory having to shut down, but more importantly, it can also pose dangers. Unless you provide written instructions in advance, affix the seals of our company, the project party, the supervisor, etc., and indicate the relevant factors. Otherwise, it will be very troublesome to initiate a lawsuit.
Chemical processing plants are still very dangerous; if the program stops running suddenly after a password has been set, the consequences can be severe. Do you think the owner will still pay you the remaining amount in such a situation?
Well, it’s not actually that difficult to implement, but you’re taking a big risk by doing it this way. Especially for chemical companies, if you stop the machinery at regular intervals, and dangerous consequences arise as a result, it could lead to criminal liability. It is recommended to take legal action, especially by applying to freeze the other party’s business account; this approach is definitely effective.