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How often is LabVIEW and NI hardware actually used in industrial applications?


@~Its_Me~ wrote:

Hello Wiebe, what about safety related part of the control system? Do you also implement that in Labview with the use of Ni hardware? 


Safety should always be implemented in suitable hardware. AFAIK (not a HW guy), either relays or safety PLCs, (dual) redundant if things are critical.

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wiebe@CARYA wrote:

@~Its_Me~ wrote:

Hello Wiebe, what about safety related part of the control system? Do you also implement that in Labview with the use of Ni hardware? 


Safety should always be implemented in suitable hardware. AFAIK (not a HW guy), either relays or safety PLCs, (dual) redundant if things are critical.


NI made an effort a few years ago to roll out suitable safety hardware.

 

And YES! Although fail-safe software design is VERY important,  you MUST design the hardware to fail safe first.

 

I could give several examples of projects that I have been involved with testing.; Positive Train Control,  class III and class IV medical devices, large scale mine equipment fire egress systems,  Fire-fighting devices, and advanced Smart ICU / Trauma response devices.  Every one of those needs to be designed to "First, do no harm!"  And, each one has the system-wide energy available to cause catastrophic results including preventable human death.

 

Injury to property is another consideration.   I have also had the unhappy experience of participating in a project where the test system itself was damaged every time that a "bad" DUT was placed in the test system.  Somehow,  saying "well, stop producing so much bad product!" doesn't justify the maintenance costs for repair of "Smoke Signal" Test system failure indications.


"Should be" isn't "Is" -Jay
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@JÞB wrote:

wiebe@CARYA wrote:

@~Its_Me~ wrote:

Hello Wiebe, what about safety related part of the control system? Do you also implement that in Labview with the use of Ni hardware? 


Safety should always be implemented in suitable hardware. AFAIK (not a HW guy), either relays or safety PLCs, (dual) redundant if things are critical.


NI made an effort a few years ago to roll out suitable safety hardware.


They did, but since abandoned that business a few years ago. In the past I either used hard-wired safety or if it was getting a little more complex, those nifty Pilz controllers: https://www.pilz.com/en-INT

Rolf Kalbermatter
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