FlyingHaggis

Which PLC for my application

4 posts in this topic

Hi

I'm not familiar with all the suppliers of PLCs so thought it better to ask for some advice given the following description of my requirements....

0.  Run off 12v~14v          Vehicle application

1.  2x temp inputs

2.  3x pwm outputs.   Capable of driving fans upto 15A each

3. Timer function

4. Voltage input.          Detect when supply voltage is too low to drive all fans

5.  Reasonably small/compact

6.  One of the fans has to be driven in either direction. (Both)

 

can anyone suggest a plc solution ?

 

 

thks.

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No micro PLC will have all that built in.  It may require several additional modules to get all of those.

What type of temperature inputs?  Thermocouple or RTD?

What kind of pulse output speed for the PWM?

All PLCs have timers.

What level of voltage are you trying to detect?

Your fan would have to support being driven in both directions, and how it's going to do that varies by fan.

Every vendor offers small PLCs, though not all offer a 12VDC solution.

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Many thanks for the ICPDAS suggestion.

At the moment, I am leaning towards

  • RaspberryPi
  • Monaco HAT
  • REX software
  • external PWM driver pcbs

It won't as look elegant as a PLC solution, but looks to be workable.

 

 

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Take a look at Velocio. I think it will run on 12v.

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