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How can I built a database

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PI:
hello, i need to built a database to open and close a proportionally valve, i am making a demo where i include a proportional valve, so we pretend to use the analog output of the MFD to make a sequence of operations, we need around 10 to 20 stages for this valve

so, if somebody know something, please let me know.......regards :)

julian:
Test this small program with 5 preseted steps.
Use MFD UP/DOWN keys for value selection and OK button for enter.
OK button must pressed twice because it's flip-flop function.
Of course it's expandable for your application and values can be changed quickly.
Regard,
Julian

PI:
thanks,

we also need to configurate the steps acording to the output value, eg. 10% we need an output value of 8mA, 100% a value of 20mA, how can i do this?

regards

julian:
PI,
probably you will need a voltage to current converter,because MFD ana-out is a voltage?
Can you give me the valve P.No. and manufacturer?
I need a second information also.
If the valve is closed (0%),how many current flows in it?
Normally the valve transfer function is a linear one.
In this case we can use the MFD function block (LS) and the program becomes very simple.
Regards,
Julian

Uwe Schröder:
Hello!

They need a CONVERTER!
For example of the company:
PHOENIX CONTACT

MCR-C-UI-UI-DCI


mfG. Uwe Schröder  :) :) :)

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