Here's another schematic diagram showing exactly the same circuit, connections and components and it appears different but they both fall into the same category.
A schematic diagram refers to a specific type of circuit structure that uses standard electrical/electronic symbols rather than images to show the way the circuit (or part of it) functions. Below is a standard 3-wire motor control circuit utilizing a typical short stop halt - start pushbutton channel employing a schematic diagram. (Momentary here means that the button/switch you trigger will go back to its default place once you let go of it, typically by a spring that compels the button/switch to do this.)
Pictorial design diagrams, or graphic circuit diagrams are essentially the exact same thing with exactly the identical purpose, but they use images of elements within the circuit instead of symbols. Again, here's the exact specific circuit (almost except a controller was included and they are using conductors L1 and L3 rather than L1 and L2.
Following is a specialized version of a design diagram called a ladder design. The principal purpose of this diagram is to demonstrate the logic (referring to electrical control) of a circuit board. This diagram is the one I mainly come across in my line of work, and it is extremely successful for troubleshooting problems or learning how a circuit works. Some circuits are so huge that many kinds of schematic diagrams have to be recorded in increments in book form (usually with coded numbers so information can be easier found). Again, here is the identical precise circuit since the first two weeks, however, looking at it in ladder type.
Much less clutter, right? I have enough information in each these diagrams to know precisely what this circuit will do and also where to look for problems. Hope that this helps. ( Note: do not confuse circuit or schematic diagrams with wiring diagrams; wiring diagrams will usually show pictures of components such as the pictorial, and the way the entire or portion of a circuit has been wired. The distinction is that wiring diagrams usually put an emphasis on real physical place of necessary elements relative to each other that basically tell a layman Just What to do about the wiring. )
Consider it in this way; a circuit diagram is any kind of diagram which demonstrates how a circuit functions where the major objective is that the appropriate wiring of elements and their relationship to each other instead of physical location relative to each other or planning prototypes. Nonetheless, in some uses classifying diagrams can be challenging so consider this as general information. I have found this is especially true when dealing with much more complicated circuits and electronic equipment. I'm likely to use a simpler but typical industrial circuit because these circuit setups are the exact same, but nevertheless where you're able to observe how each sort of diagram indicates the operation of the circuit in their own manners.