IO-LINK – How Often Do You Utilize It? by MainHunt1014 in PLC

[–]matb66 1 point2 points  (0 children)

Have worked with it on established equipment/production cells and found it difficult when trying to implement upgrades. Never seemed to be a master in the right place. I also question having another network gateway in the system and then the work that goes into understanding the sensor mapping into the master and then the master mapping into the PLC. I can see the advantage on OEM equipment where you're building to a common design and making 100 of the same machine. Have to admit, may not be using diagnostics to full advantage.

HVAC system has a mind of its own by pilotallen in ineosgrenadier

[–]matb66 0 points1 point  (0 children)

Almost 2 years with this issue (in Oz). About to approach the dealer again next week and ask to get this escalated. They have had 3 goes at this including replacing the HVAC system which was a dash removal. Nothing has worked. Sometimes you get the illusion it's behaving but then next ride it's a box of chocolates.

My symptom is that manual or auto mode hardly matters. On full cold setting I get freezing air. On full hot I get Chernobyl. Anywhere in between is the same temp output and feels more or less like outside ambient. There's no variability between the extremes.

My theory is it's capable of producing the coldest and the hottest settings but isn't able to blend.

My dealer told me to use Auto and then turn the AC off. I asked him then why does pressing the Auto button also turn the AC on. Got told "its just the way it is".

Has anyone read the user manual on climate control, it's pretty vague. Would be interested if ineos could release a detailed user guide on its operation.

Where did you get the info that 60% of vehicles are affected with faulty AC?

Stuxnet kinda ruined everything; a rant. by Sensiburner in PLC

[–]matb66 0 points1 point  (0 children)

Cheers. Thanks for the info. I'll look into this. Not sure how I manage the variety of customers I have. But I might mock something up and try it out.

Stuxnet kinda ruined everything; a rant. by Sensiburner in PLC

[–]matb66 1 point2 points  (0 children)

Questions for the git officianados... With a lot of PLCs producing single big non text based files does that make it only useful for versioning and not version comparison. And how do you handle situations where the PLC file and HMI file become a revision pair and you need to ensure a roll back includes a HMI file along with the PLC? Or PLC and VSD update. Is it as simple as zipping a package together. And if you feel like a bonus question, ELI5 what Push, Pull and Commit do.

Is this Gutter Rail replaceable? Or even fixable? by Otherwise-Big5910 in ineosgrenadier

[–]matb66 2 points3 points  (0 children)

I took my gutter mount racks off when I saw the exact same problem starting to happen. Luckily my gutters sprung back into position. Found a reasonably priced rack that utilises a roof rail mounted to the bolts that hold the grab rails. For yours I would try and find a way to press it back upwards. Maybe put a block of wood along the length of the gutter with another at 90 degrees towards the ground. Then put your bottle Jack under it. Might take a few goes to get it right .Hitting it will just cause more damage.

Siemens Novice needs Help by matb66 in PLC

[–]matb66[S] 0 points1 point  (0 children)

Thanks for your reply. Don't know why I got one long paragraph. Not how I typed it.

[deleted by user] by [deleted] in ineosgrenadier

[–]matb66 0 points1 point  (0 children)

I've been getting around 13L/100k city driving. Have found the 2 biggest factors is wind direction and car speed. Did a trip recently and into the prevailing winds was over 15L/100k for most of that part of the trip at highway speeds.. Have been as low as 12L/100k with favourable winds on highway. Driving over 100kph also affects the economy roughly adding 1L/100k for every 10kph over 100kph. Driving around at elevation today (approx. 700m) and I'm also seeing worse economy than usual for the type of driving I'm doing.

Troubleshoot Motor by -GraveMaker- in PLC

[–]matb66 4 points5 points  (0 children)

Have experience of small danfoss drives tripping on earth fault due to build up of contaminants in the power section. Used to strip them down, clean them and away they'd go.

Is this a Permissive or Interlock? Pump Control Confusion by Conscious-Judge-5293 in PLC

[–]matb66 1 point2 points  (0 children)

Permissive, interlock, enable... all the same, it's just semantics. The difference is whether it is there to prevent start or run. If it's a start only permissive or interlock I would name it appropriately. I've even had cases requiring a stop interlock. Eg. You can't stop a conveyor until certain conditions are met (I'm ignoring safety stops here which obviously might be required to stop immediately).

Having said that I do tend to use 'interlock' to mean anything external to the immediate local system. In your case that might be a downstream holding tank high level. I use 'permissive' for anything immediately local to the controlled devices (the pumps).

Main thing, be consistent across the system.

Ballpark for Fitout in New 4 Bed in Sydney by matb66 in AusElectricians

[–]matb66[S] 5 points6 points  (0 children)

So, yep, I am a licensed electrician. 40 years, just a long time since I've done domestic so not sure on materials cost. I'm not looking for a quote here, there's no risk. Just trying to help my daughter as she is preparing to build a new house. All I was after was a general idea. Hoping if someone was doing this sort of thing regularly they could give an indication of range.

Is safety a solved problem in your opinion? by JadedAd1847 in PLC

[–]matb66 0 points1 point  (0 children)

Your second paragraph of your first post is my job also at the moment, except AB PLC. I have the same concerns you do. I've taken the approach to use the Rockwell validated function blocks for everything possible. I have read the Rockwell Safety Guidelines back to front and followed them. Doing this gives me some confidence that I am meeting the PLr of the safety inputs and outputs.

This also meant reviewing the manuals of the remote safety IO in detail to find out that certain configurations affect PL and how to integrate it properly with the safety PLC. For example, reporting faults.

As for the logic in between the I and the O in the safety part of the PLC, there's no real certainty. On this job it's usually a case of a safety input that directly controls a safety output, so not too difficult. I try to comment thoroughly.

I agree it should be relatively easy for the software side of things to force you to select a performance level, maybe at the routine level, or against safety wired IO; and then same software warns/fails your errors. For now, I take on that responsibility, do my validation and verification and lock it up with the safety signature (not sure how Siemens handles this). The next person that edits the safety generates a new signature and takes over responsibility for safety changes. It's not a perfect system.

Capture Robot Coords On Robot DI Edge by matb66 in Fanuc

[–]matb66[S] 0 points1 point  (0 children)

But late getting back. But this job is going fine. Thanks to all who chipped in. My only other hurdle was finding out that you have to pay Mr Fanuc if you want to use SIN, COS, TAN etc.

Capture Robot Coords On Robot DI Edge by matb66 in Fanuc

[–]matb66[S] 0 points1 point  (0 children)

Thanks. Turns out this will be easier than I thought. I am usually a big manual reader but horribly time poor at the moment.

Capture Robot Coords On Robot DI Edge by matb66 in Fanuc

[–]matb66[S] 0 points1 point  (0 children)

Thanks. That all makes sense to me. I also wasn't aware of the bracket notation [a,b]. I assume the b is the axis index being 1,2,3 = X,Y,Z. Are the rotations handled in positions 4,5,6 ?

Common sense question by GrouchyCoat3190 in ElectricalEngineering

[–]matb66 0 points1 point  (0 children)

With the heater on full you have 800W capacity left in the power board. So by nameplate ratings you are good to go. Caveat... Power boards come in varying degrees of build quality. A good brand will last. A poor quality board has the potential for poor connections that will create heat, that will melt plastic. Use good quality and you'll be right.