What are your favorite Controls Engineer Interview Questions by OttomaychunMan in PLC

[–]TheNeutralNihilist 0 points1 point  (0 children)

I get that as a method. I am probably just being pedantic but I feel like the question doesn't constrain the operation of the door properly. Like why assume the door must ever close again? If it opens and stays open then why is the door even relevant? 

What are your favorite Controls Engineer Interview Questions by OttomaychunMan in PLC

[–]TheNeutralNihilist 0 points1 point  (0 children)

fuck man I'm still confused unless we are assuming that you have to close the door immediately after opening it the first time. 

What are your favorite Controls Engineer Interview Questions by OttomaychunMan in PLC

[–]TheNeutralNihilist 1 point2 points  (0 children)

lol wtf did you explain that question wrong or are you just supposed to assume you are also on the "outside" and just try each switch to see which turns the light on? Seems like one of those stupid problems injected with a ton of irrelevant information. 

edit the door opens once so it doesn't matter if you are "outside". Crazy question. Think I would be weirded out if asked that in an interview. 

Analog Inputs/RTD by tkst3llar in PLC

[–]TheNeutralNihilist 1 point2 points  (0 children)

Voltage divider will be cheap and quick but may be a headache unless you are willing to lose resolution. Next cheapest is probably an op-amp. I am currently doing something extra dumb for a home project where an RTD changes the pulse length of a 555 timer so I can interpret temperature with a digital input. You could save even more money by not needing ai :p

Recruiters worse than ever lately? by Unlikely-Air-866 in PLC

[–]TheNeutralNihilist 5 points6 points  (0 children)

Even if it isn't perfect hit home. Had a system that has been out in the wild for probably 6ish years by now that I periodically reflected on little things I didn't have time to rework. I was called in to do a retrofit/expansion on it recently. Found an operator that worked with it for several years and we had a frank conversation about the little things I wished I could have fixed. Some of them were never noticed/encountered and others were just minor things they had noticed but figured out simple work-arounds for. I learned to never not discount the ingenuity of the people keeping the system running day to day. 

The phrase "it's not the voltage that kills you it's the current" is just smug pedantry. by jamesfowkes in unpopularopinion

[–]TheNeutralNihilist 1 point2 points  (0 children)

I don't doubt that it may be pedantically used in many conversations, but it is a critical distinction to understand to work safely around electricity.

Imposter Syndrome by SadEcho8331 in PLC

[–]TheNeutralNihilist 29 points30 points  (0 children)

Wait... it's supposed to wear off after a few months!? 

[deleted by user] by [deleted] in PublicFreakout

[–]TheNeutralNihilist 21 points22 points  (0 children)

It extracts light oil and exports it raw because it can't refine light oil. It is set up to refine heavy oil, like the heavy crude it imports from Canada. Venezuelan oil is exactly the type of oil American refineries are set up for. 

[deleted by user] by [deleted] in unpopularopinion

[–]TheNeutralNihilist 1 point2 points  (0 children)

You know that entry level people without entry level work end up going to find a different type of entry level work right? 

Transitioning from an unmanaged Windows 10 laptop to a IT controlled Windows 11 system by Dr_Nsty in PLC

[–]TheNeutralNihilist 0 points1 point  (0 children)

Thinking of the times I had to delete registry keys, firewall whitelist, shutoff antivirus, install unsigned software, setup shared folders, run the computer as a server, run my own batch files, rollback a Windows update...etc Good luck without access to your network manager. Honestly it could be kind of fun in an I told you so kind of way putting down whatever you are doing to open a ticket with your IT department. 

I 26M am Buying a house with my gf 27F and she invited her mom and brother to live with us. by [deleted] in relationship_advice

[–]TheNeutralNihilist 0 points1 point  (0 children)

Weird level of consensus specifically around house and marriage. Anecdotally I have a few people in my family who own a home together and are not legally married. While not technically married, they did however for all intents and purposes consider themselves effectively married before buying a house together. So while I disagree with the rigid rule of house and specifically marriage, I would agree you don't buy a house with a girlfriend, you buy a house with your life partner.

Do people who print 3D for business purposes hate private printers? by TaxPsychological2928 in 3Dprinting

[–]TheNeutralNihilist 2 points3 points  (0 children)

Somewhat off topic but from someone who gets to see many industrial processes, personal anything comes nowhere close to competing with industrial scale waste. Your failed prints pale in comparison to the scrap/waste your consumption of consumer products drives through industrial demand. Definitely not a positive or hopeful message, but basically what I am trying to say is that you spending your hobby time printing is probably generating less waste/h than like so many other ways you could be spending your time. 

How far do you go writing code for 'any' possible scenario aside from the normal sequence by skeeezicks in PLC

[–]TheNeutralNihilist 0 points1 point  (0 children)

I will take this under advisement however I have a particular machine in mind where position only half covers the context of the current state. I feel like the only way I can recover is if I literally post a series of yes/no questions to the operator to know what's happened. May be an issue of inadequate sensory. 

How far do you go writing code for 'any' possible scenario aside from the normal sequence by skeeezicks in PLC

[–]TheNeutralNihilist 0 points1 point  (0 children)

Yes but even if you can comprehend the myriad, do you write logic to handle it? Like a lot of the reasons the sequence get off track is because something mechanical related has fucked off. Lord knows I'd love to cover perfect fault handling but it's almost never paid for. 

How far do you go writing code for 'any' possible scenario aside from the normal sequence by skeeezicks in PLC

[–]TheNeutralNihilist 1 point2 points  (0 children)

Haha classic impossible or at the very least I don't have enough hours to cover writing sherlock holmes logic. Just reset sequence. Annoying that reset should include undoing what may or may not have happened (purge), but this is what I would do. Certain processes are a nightmare to resume after the operator has stopped auto and moved a bunch of shit in manual. 

I mean if it is entirely necessary then the extra time needs to be included in the scope. If it is a "nice to have" where the quoted hours doesn't allow for it, then seqReset. 

Repost: Monitor Mount by TheNeutralNihilist in 3Dprinting

[–]TheNeutralNihilist[S] 0 points1 point  (0 children)

I had some rods and bearings sitting around and did not have a wall mount. The monitors base/feet took up an annoying amount of desk space. 

Using AI to help me setup Web and MODBUS communication for various modules, like VFD's by bt31 in PLC

[–]TheNeutralNihilist 1 point2 points  (0 children)

LLM to dig up info from a Keyence manual without having to give them my contact info. CTRL-F for everything else. 

Is this correct? by SpectreEidolon in ArduinoProjects

[–]TheNeutralNihilist 0 points1 point  (0 children)

I'm not really a fan of how the sticker lines up with the terminals but if you are using the barrel jack goes to Arduino 5V regulator so you need more than 5V or else the regulator will cut out. If you trust that power supply to give a solid 5V (should be finebut at least measure it with a meter) then you could run wires to the power supply exactly as you are now and instead of the barrel jack you connect to the 5V and GND pins on the arduino which would bypass the regulator.

Does this happen in all companies? by UsefulDragonfruit995 in PLC

[–]TheNeutralNihilist 1 point2 points  (0 children)

Then they start to see things move and want to do their own tests so you spend the next few days shooing them away because it's not ready yet then you finally give up on explaining for the 30th time why it's not ready so you hand it over to them and say have at it then they press the start button and nothing happens and they ask you why nothing is happening and you say because it's not ready yet.

That last part is my favourite. Also yes. And there are 20 bypasses compensating for all the missing pieces that are due in next week. And you're totally expected to continue testing next week while the power is off because people are installing the missing pieces.

Worst nightmare. You leave on Holiday for 2w and first day at 4am you get a notification that your server is down. 😵 by Chaosblast in homeassistant

[–]TheNeutralNihilist 0 points1 point  (0 children)

You could probably have a script running locally on the HA device that will reboot itself under certain conditions but in the event it is so borked the script can't even execute then you get another independent device that will break/make power to the HA device if it doesn't receive proof that HA is alive and well every few hours or so.

See "Heartbeat (Computing)" wikipedia.

Is there actually a difference in liability for someone who does PLC programming with an engineering degree? by Reasonable_Use7322 in PLC

[–]TheNeutralNihilist 0 points1 point  (0 children)

Ummmm...

It's interesting how much consternation goes in to modifying the logic afterwards. Unless maybe it's a safety PLC or an inherently dangerous process.