1-Combinator RS-latch

[Achating]

Hey,
Idea popped in my head, that it should be possible to make single-input single-combinator RS-latch with new decider combinator. So I made one:

10-30-2024, 22-33-05.png (672.44 KiB) Viewed 13580 times

On the screenshot I recreated example of the backup steam generators from wiki using new latch design.

I have created parametrized blueprint for general use:

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

Copy blueprint

Notes:
- Output is "green" signal by default
- Red wire used as a memory cell

Have fun

[daemuth]

Hey dude! This is awesome! I randomly bumped into this while making my own "smart assembler" and have used it to make my setup nice and compact:


Thanks for posting!

[CircuitBreaker]

Cool! I've now used this in my fuel processing setup (when to crack heavy oil into light oil etc.). Very useful, thank you!

[TomyTheBest]

This is epic.
you should ask for a 1$ license fee every time when someone using it.
I already owe a full tank gas ...

[coffee-factorio]

I was looking at this because I didn't get to 1 combinator RS latch but I had the idea it could be done.
Because I made a 1 combinator resetting clock.

You have two input conditions: t < value and r == 0. Two output conditions: 1 qty t and output total quantity of ts. This is done on a standard back fed logic single combinator clock. I have a videya of it and wanted to see if it was a novel idea or if it was already covered in a Friday Fast Facts or similar. I know I have my idea of how an RS Latch works and might try and come up with another video but if I do I wanna give people credit for being coming up with cool stuff

It isn't the timer that pauses from the tutorial. It definitely cycles. You'd have to use an rs latch as a guard for the demo purpose I think it has, which is switching a mall resource line on and off (because malls can halt while you build up small logistics; versus dedicated construction products that need to work till they end or research - which doesn't really end in theory).

I'll put a still frame from the video on this post when I get round to editting it.

[phant0m]

Hi,

Thanks for the idea! I've updated the latch for more general usage. Red wire is used as a memory cell.

A > 0 is the set signal.
B > 0 is the reset signal.

The logic I thought of is as follows:
We want to output S if A > 0 or S > 0, but not B > 0, so
[(A > 0) OR (S > 0)] AND [NOT (B > 0)]
[(A > 0) OR (S > 0)] AND (B = 0)
[(A > 0) AND (B = 0)] OR [(S > 0) AND (B = 0)]

I have not actually tested this thoroughly, please correct me if there's any issues with this setup.

Capture.PNG (77.29 KiB) Viewed 11996 times

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

Copy blueprint

[Hudy01]

and....I just use a box:
and set ON time by transport belt length )

11-29-2024, 10-48-50.png (1.57 MiB) Viewed 11643 times

11-29-2024, 10-49-12.png (1.17 MiB) Viewed 11643 times

[SuicideJunkie]

Hi,

Thanks for the idea! I've updated the latch for more general usage. Red wire is used as a memory cell.
...
I have not actually tested this thoroughly, please correct me if there's any issues with this setup.

I'm not clear on how that differs significantly from the classic; {S} > {R} ? Output 1x {S} (+Wire output to input)

2.0 could add some sidecar values to the classic latch using the additional output options; they would a running tally or a clock depending on your use case of 1 and input count options.

[gGeorg]

Slightly improved original idea,
input is restricted, (to green_only AND red_only) so it doesn’t mix with others. In case you use it in some far intriguing scenario.

01-10-2025, 07-40-37.png (359.1 KiB) Viewed 9804 times

[leograyc]

This is such a great step up. I've browsed for 2 nights of normal RS-latch stuff till I see this.

I made a account just to give you a thumbs up.


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[gargamel9]

Slightly improved original idea,
input is restricted, (to green_only AND red_only) so it doesn’t mix with others. In case you use it in some far intriguing scenario.
01-10-2025, 07-40-37.png

Hi there. I've been trying to use this to regulate the output of light oil. The idea is for the pump to work when the oil reaches a certain level and then continue to pump until it reaches another one, say from 190.000 to 180.000 (so the pump not just starts at 190.000 and then stops when it reaches 189.000 almost instantly)
Its there a way to do that?
thx

[gGeorg]

Slightly improved original idea,
input is restricted, (to green_only AND red_only) so it doesn’t mix with others. In case you use it in some far intriguing scenario.
01-10-2025, 07-40-37.png

Hi there. I've been trying to use this to regulate the output of light oil. The idea is for the pump to work when the oil reaches a certain level and then continue to pump until it reaches another one, say from 190.000 to 180.000 (so the pump not just starts at 190.000 and then stops when it reaches 189.000 almost instantly)
Its there a way to do that?
thx

Sure, you want classic hysteresis.
https://en.wikipedia.org/wiki/Hysteresis
SetUp First line value at 190.000
SetuUp last line value at 180.000
Change both "<" signs into ">"

Basically, you are turning the direction of hysteresis other way around.