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ideal logic

A logic gate is an idealized model of computation or physical electronic device implementing a Boolean function, a logical operation performed on one or more binary inputs that produces a single binary output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or it may refer to a non-ideal physical device (see Ideal and real op-amps for comparison).
Logic gates are primarily implemented using diodes or transistors acting as electronic switches, but can also be constructed using vacuum tubes, electromagnetic relays (relay logic), fluidic logic, pneumatic logic, optics, molecules, or even mechanical elements. With amplification, logic gates can be cascaded in the same way that Boolean functions can be composed, allowing the construction of a physical model of all of Boolean logic, and therefore, all of the algorithms and mathematics that can be described with Boolean logic.
Logic circuits include such devices as multiplexers, registers, arithmetic logic units (ALUs), and computer memory, all the way up through complete microprocessors, which may contain more than 100 million gates. In modern practice, most gates are made from MOSFETs (metal–oxide–semiconductor field-effect transistors).
Compound logic gates AND-OR-Invert (AOI) and OR-AND-Invert (OAI) are often employed in circuit design because their construction using MOSFETs is simpler and more efficient than the sum of the individual gates.In reversible logic, Toffoli gates are used.

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  1. J

    Ideal Logic Code Combi E38 not working

    Turned the system from hot water only, to hot water and central heating the other day. After it working briefly, it has now stopped all together. The display isnt showing a fault or anything - it is just blank. After reading the service guide that came with it - I am confident there is power...
  2. P

    Ideal Logic Combi 35 constant F1 fault

    Got up on Wednesday morning no hot water, (only cold water coming out of hot tap). Checked boiler, it had zero pressure and F1 fault showing. So I refilled the pressure using the filling loop, up to about 1bar which is where it usually is, which worked fine, had hot water all day. Same thing...
  3. F

    Pressure issues Ideal Logic Combi 30

    Hi, We have a new Ideal Logic Combi 30. A radiator today came off the wall and developed a leak. Plumber came and fixed (but didn't). At that time the boiler was fine. Today the boiler has lost pressure. I have followed the videos on yt and nothing works. Just stays telling me F1. I have...
  4. M

    Help needed on Ideal Logic Heat 15 System Boiler showing F3 error code

    Ideal Logic Heat 15 System Boiler Hi. Just started to get an F3 Fan Fault on this boiler. On power up there seems to be a quiet thump from somewhere then it goes through the start up sequence. It spends a few seconds on the ‘c’ display before coming up with the F3 error code. Can anyone advise...
  5. R

    Ideal Logic Combi ESP1 Time clock jumper link

    Hi looking to remove my existing rf time clock and refit the oem link, but the installer didn’t leave it, anyone point me in the right direction
  6. Beshman

    Need new Thermostat for 2016 Ideal Logic Plus Combi 30

    I've got a 2016 Logic PLus Combi 30 and a Salus RT505TX RF Thermostat The thermostat seems to keep losing connection, no matter the placement. It can be next to the boiler or in the next room and it still not get a connection. Just a weird blackspot in the kitchen blocking it (could be the...
  7. E

    Why does my Ideal logic +30 boiler keep going in to overheat lockout.

    The boiler runs may be 1 or 2 days before erroring. The problem started 3 months ago. The boiler would run blue light on at front an center of boiler. But the pip work out would bearly get warm. The pump should has rust water dripping from Chrome screw hole and the divert value was also...
  8. M

    boiler will not communicate with reciever

    . ideal logic plus c30 , hot water fine boiler wont communicate with reciever honeywell stat sends signal reciever turns on ,will not fire boiler up
  9. W

    Ideal Logic Combi 35

    Hi all, I've got a bit of a strange issue relating to my Ideal Logic Combi 35 which has recently started displaying a F2 error when trying to use the central heating system. The boiler works fine when using hot water, however when I try to turn on the central heating system the boiler works...
  10. S

    Ideal Logic Combi 30 - pump only keeps activating for 4 mins.

    Hi, As per the thread title, I have an Ideal Logic Combi 30 and I am having a problem with the pump, which keeps activating without any DHW/DCH. When the pump activates, it runs for exactly 4 minutes each time and this can happen as frequently as something like 5 times an hour or as...
  11. G

    Ideal Logic+ System cycling when no HW or C/H demand

    Hi. I have an issue with my Ideal Logic+ System S24 boiler which I hope someone can help with. Below is as much detail as I can think of. The boiler has been running constantly (cycling?) 24/7 for the last few days, during the recent very cold snap and since. HW and C/H are running fine, as per...
  12. E

    Ideal Logic +18, intermittent fault

    Have an Ideal Logic + 18 with intermittent fault. When on demand the display constantly changes from O to C but burner doesn’t start. Can fix by switching Off then On again, but this only lasts for a day or two. As it’s an intermittent fault I’m reluctant to call out an Engineer. Any ideas?
  13. Husk24

    Ideal Logic system s30 boiler making whistling sound

    Hi guys, my boiler seems to be making a whistling sound after a while its on, if I tap it firmly it goes away, is this something to do with trapped air? Any ideas? My boiler is ideal logic s30. Video attached thanks
  14. J

    Ideal Logic Weather Compensation Kit

    Hi Anyone know difference between Ideal Logic Combi Weather Compensation Kit(round box) ad new one 216199 model?Need this for my new Ideal Logic + boiler
  15. T

    Ideal Logic Combi 24 pinhole leak

    I have a Ideal Logic Combi 24 and the engineer to who comes to service says there is a design fault. It is not a question of if it will fail but when. Apparently the heat exchanger develops a pinhole leak and has to be replaced. Always in the same place. Known about for years. Design has not...
  16. I

    URGENT Ideal Logic Heat 15 with FD error

    Hi all, Really hoping somone can shed some light on this. I have an Ideal Logic Heat 15 boiler with an FD error. However, the boiler doesn't have a pressure guage or pressure release valve, so I am unable to check the water pressure. I assume this model doesnt work in that way? I have water...
  17. O

    Logic 24 - hot water only turns on radiators

    When I turn on water only on the logic 24 boiler the water heats up and so does the radiators. It’s a a single floor apartment with the boiler recently serviced and the safety valve and 12 litre vessel change. Using the hive heating system.
  18. BoilerNoob

    Ideal Logic Boiler on finance - worth it?

    Our current boiler is 19 years old (and a piece of Rubbish) Had a guy round today from Energy Options Solutions that offered us an Ideal 30kw Logic Boiler on 10 year finance with 10 year warranty. They claimed it would save us 54% minimum on our gas bill per month and we would have a magnetic...
  19. S

    How long does it take to Commission a new boiler

    The boiler is installed, it just needs commissioning, I suppose when there are no faults because if there are then it is the same as asking how long is a piece of string? The boiler is an Ideal Logic Max c35Kw, if that makes any difference. Cheers
  20. albert85

    System Boiler (Y-plan) with Google Nest 3rd Gen and OpenTherm?

    Hi I've got an Ideal Logic+ System Boiler (installed by my plumber as a Y-plan currently in the simple on/off mode) with Google Nest 3rd Gen. Is it possible to upgrade my system so that the Nest 3rd Gen controls the boiler via the OpenTherm protocol for both the heating and for the hot water...
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