which controller to use???

[Diego M]

Hello everyone,

I need to create an application that requires the controller to store some data to be used in a trending chart later. has anyone done this? which would be the best controller for this purpose.

Thanks

[Jakob]

Hi Diego,
It's very much depends on how many points of data you need to store, is it 10 counters for different events, or is it a continuous running log of many values?
Clarifying these questions will help finding an answer to your actual question.

[Diego M]

the controller should be able to log continuously up to 20 variables.
I have used a SC 050 020 controller in the past, if fact I have a spare one that I was hopping I could use.
thanks,

[bryantmorris]

Hello Diego,

Over what time periods did you want to be able to store the logged data of these 20 variables?

[FluidPowerTom]

You'll want to do the math on how much data you need to store.  That will require understanding the variable size (8-bit, 16-bit, 32-bit...), how often you wish to log these variables, and how long you wish to keep these variables stored before they can be erased.  You've posed the question in a very generic way.  At the very least you need a count of inputs and outputs and signal types before a controller can be recommended.  I'd recommend looking up some of the 'Extended Memory' controllers from the PLUS1 series for any sort of data logging.