Self-diagnostics can not detect the health of a dry contact, or the performance of a CT or PT, but most importantly, you will never be alerted to an incorrect function setting or logical configuration ...

It’s where the actual electrical signals and logic gates operate. This layer metaphorically corresponds to the ground on which the Jacob’s ladder stood. Logic Gate Layer: This layer is built ...

Gilles Paché does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

there’s only so far you can go with relay logic before you’re taking out a second mortgage. So the relays are limited to the ALU of the calculator, along with the drivers for the six seven ...

We can understand why the final design used a microcontroller, but we also think that [Alex’s] relay logic circuit is an eloquent way of doing things. He uses limiting switches as the feedback ...