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Topic: ARDUINO + Ship automation (Read 15853 times) previous topic - next topic

newguitar

Can it be used in arduino ship automation by using appropriate equipment?

soundfx

If there's a job accident.
ARDUINO card malfunctioned. Machine Manufacturer is a guilty.
SIEMENS plc  malfunctioned. Machine Manufacturer is not guilty.

newguitar

There are no penalties for Siemens :)

Robin2

#3
Feb 05, 2018, 10:27 pm Last Edit: Feb 05, 2018, 10:28 pm by Robin2
There are no penalties for Siemens :)
I think it would be more correct to say
"There are no penalties for using Siemens PLCs as part of a machine"

If Siemens screws up they will face penalties also. But they can more easily afford them than you can. Perhaps more importantly, Siemens (and similar large firms) can afford lawyers.

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

Paul_KD7HB

I think it would be more correct to say
"There are no penalties for using Siemens PLCs as part of a machine"

If Siemens screws up they will face penalties also. But they can more easily afford them than you can. Perhaps more importantly, Siemens (and similar large firms) can afford lawyers.

...R
And Siemens can and does spend millions to ensure their products work properly.

Paul

wvmarle

This is not a Siemens vs. Arduino issue. It's a "commercial, off the shelf" vs. "homebrew" issue.

Homebrew can very well be just as reliable as off the shelf. Atmel's processors are for sure used in lots of such commercial products, maybe even in the Siemens ones. It's all about the testing that goes into certifying a product to be safe, and determining the limits of what it can do.

Siemens will be able to give a guarantee that their product works within certain limits, and can give you exactly the specified limits and approved use cases. Will you be able to do the same for your Arduino based product?

It also of course depends on whether it's for automation of your yacht, a simple autopilot that lets you sit back and relax, or whether it's to be sold as an autopilot for a ship where the sole sailor wants to be able to go to sleep while the boat pilots itself, or for an autopilot on a large container carrier - in other words, the consequences of the system failing.
Quality of answers is related to the quality of questions. Good questions will get good answers. Useless answers are a sign of a poor question.

TomGeorge

And Siemens can and does spend millions to ensure their products work properly.

Paul
Siemens have safety features that not only monitor software but hardware failures.
Tom.. :)
Everything runs on smoke, let the smoke out, it stops running....

ardly

Can it be used in arduino ship automation by using appropriate equipment?
What sort of ship are you talking about and what aspect of its operation are you wanting to automate?
"Facts do not cease to exist because they are ignored" - Aldous Huxley

newguitar

Machine
Heat-Pressure-tank level.........
Alarm

wilfredmedlin

Siemens have safety features that not only monitor software but hardware failures.
Tom.. :)
Anyone "could" do that if they had the inclination: the purchaser of any such system will want to see as an absolute minimum that such things are built in,

The purchaser would also insist that the manufacturer's quality system is robust enough to assure quality. Implicit in that, and in fact often explicit, is that the final system manufacturer's quality system imposes similar requirements on their suppliers' suppliers' suppliers.

In know that the Atmel datasheet explicitly precludes automotive and medical use; I wonder what they would have to say about marine?

Keep Calm and call 0118 999 88199 9119725...... 3

wilfredmedlin

Machine
Heat-Pressure-tank level.........
Alarm
WTF does that even mean?
Keep Calm and call 0118 999 88199 9119725...... 3

wvmarle

What to automate about the machine?
What to automate about your tank?
What alarms, and how would they be raised?

In know that the Atmel datasheet explicitly precludes automotive and medical use;
They don't exclude all medical uses, just those that have to do with life support (exact wording see data sheet).
Quality of answers is related to the quality of questions. Good questions will get good answers. Useless answers are a sign of a poor question.

wilfredmedlin

They don't exclude all medical uses, just those that have to do with life support (exact wording see data sheet).
Correct, but for the purposes of this discussion a hair which I didn't bother to split.

(That said, I'd be keen to see a later Atmel-as-Microchip datasheet; mine's dated 10/09 (not sure if that's October 2009 or September 2010, but it's quite old either way.)

Keep Calm and call 0118 999 88199 9119725...... 3

wilfredmedlin

What to automate about the machine?
What to automate about your tank?
What alarms, and how would they be raised?
And presumably there is something shippy enough about all that to warrant mentioning it's in a ship not a factory. So perhaps an aggressive marine environment?

Keep Calm and call 0118 999 88199 9119725...... 3

wvmarle

Of course, didn't even get to the part of how to keep it working and so. That's a whole different aspect of the project. Keeping the water (and if on the sea, salt) out, stable and reliable power supply, structural integrity of the final build, robust wiring (if it's a steel ship, wireless is out), etc.

It seems OP has no idea of what they actually want to do, though. Or they'd be able to come with more info.
Quality of answers is related to the quality of questions. Good questions will get good answers. Useless answers are a sign of a poor question.

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