Absolutely not. Most industrial automation engineers, let alone electricians, are unable to handle Structured Text (the standard IEC text-based programming language for PLCs), let alone Python. Haskell is not even on the same planet.

And a DSL is the exact opposite of what we're trying to accomplish: An electrician with no prior knowledge of the system needs to be able to read the code and understand which switches and sensors need to be turned on in order for that motor over there to start. Having to learn an entire new custom language at 3AM when you're losing $700,000 an hour in lost production is not an option.

(Edit: I should clarify that I'm talking about mining here. High end factory automation engineers may very well be more familiar with 'traditional' languages.)

The people I've worked with who are operating power plants can't read code. Perhaps they can read a schematic and could understand ladder logic. They are usually quite skilled mechanically though.

Even the automation professionals I work with whose jobs are to write and maintain PLC programs look at the 'structured text' PLC logic I've written (a constraint solving algorithm) and can't be bothered trying to understand it.

Controlling a physical system is different from programming computers. The simpler the logic is to read and understand the better. Direct and verbose is better than layers of indirection and abstractions.