Why are SR latches better than reset latches or are they the same ?

[Z0MBE]

debate

[Khaylain]

SR latch is short for Set and Reset latch.
One signal will set the latch, and another distinct signal will reset it. In Factorio you will need at least 2 combinators to achieve an SR latch, if memory serves.

[Purpleganja]

Is this the 2 combi with 2 input signals latch vs the 1 combi that resets with negative value of the 1 input signal latch debate? I forgot which is named RS and SR or was that it?

[RiO]

Początkowo opublikowane przez Khaylain:

SR latch is short for Set and Reset latch.
One signal will set the latch, and another distinct signal will reset it. In Factorio you will need at least 2 combinators to achieve an SR latch, if memory serves.

Correct. You can, however, make its complement RS latch with only one decider combinator.
The difference between an SR latch and an RS latch is that in an SR latch, when both inputs are true, the latch is set - whereas in an RS latch it is reset. (First member in the name designates priority.)

The single-decider RS latch is superior because the two-decider SR latch design is incapable of handling single-tick inputs. I.e. you cannot reliably use a single-tick pulse such as from a circuit-bound inserter or belt to flip an RS latch.

The full run down:
https://forums.factorio.com/viewtopic.php?p=160896#p160896

[Z0MBE]

Początkowo opublikowane przez Khaylain:

SR latch is short for Set and Reset latch.
One signal will set the latch, and another distinct signal will reset it. In Factorio you will need at least 2 combinators to achieve an SR latch, if memory serves.

wait so like, if I have a unique signal, say like a train has a specific item in it, I can maybe use that to set a reset latch, becuase ive been trying to make a reset latch based system that works with multiple items instead of only 1 set item yknow? like it could say get varied signals and like show what amount it leaves out based on the reset part ??

[jamiechi]

Początkowo opublikowane przez RiO:

Początkowo opublikowane przez Khaylain:

SR latch is short for Set and Reset latch.
One signal will set the latch, and another distinct signal will reset it. In Factorio you will need at least 2 combinators to achieve an SR latch, if memory serves.

Correct. You can, however, make its complement RS latch with only one decider combinator.
The difference between an SR latch and an RS latch is that in an SR latch, when both inputs are true, the latch is set - whereas in an RS latch it is reset. (First member in the name designates priority.)

The single-decider RS latch is superior because the two-decider SR latch design is incapable of handling single-tick inputs. I.e. you cannot reliably use a single-tick pulse such as from a circuit-bound inserter or belt to flip an RS latch.

The full run down:
https://forums.factorio.com/viewtopic.php?p=160896#p160896

Outside of this game, there is no such thing as a "RS latch".
Due to the poor design of the Combinator in this game, it is difficult to make a proper SR latch.
Never heard this difference between 'RS' and 'SR' latches.

See the spec for the TTL 74279 quad logic circuit for the proper definition.
https://www.ti.com/lit/ds/symlink/sn74ls279a.pdf?ts=1676032543939&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FSN74LS279A

[RiO]

Początkowo opublikowane przez jamiechi:

Początkowo opublikowane przez RiO:

Correct. You can, however, make its complement RS latch with only one decider combinator.
The difference between an SR latch and an RS latch is that in an SR latch, when both inputs are true, the latch is set - whereas in an RS latch it is reset. (First member in the name designates priority.)

The single-decider RS latch is superior because the two-decider SR latch design is incapable of handling single-tick inputs. I.e. you cannot reliably use a single-tick pulse such as from a circuit-bound inserter or belt to flip an RS latch.

The full run down:
https://forums.factorio.com/viewtopic.php?p=160896#p160896

Outside of this game, there is no such thing as a "RS latch".
Due to the poor design of the Combinator in this game, it is difficult to make a proper SR latch.
Never heard this difference between 'RS' and 'SR' latches.

See the spec for the TTL 74279 quad logic circuit for the proper definition.
https://www.ti.com/lit/ds/symlink/sn74ls279a.pdf?ts=1676032543939&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FSN74LS279A

Well; I never said I was going to be using official electrical engineering definition-by-specification, now did I? :-)
I'm simply running off of what the ad-hoc definition as carried by the wider Factorio community for use in-game, is.

[jamiechi]

I suppose this is where the original term for the 'RS Latch' came from.
https://wiki.factorio.com/Tutorial:Circuit_network_cookbook#Latches