4 To 20ma Analog I/O
I would like to interface Stamp I and II to Industrial
Insturmentation
using 4 to 20 ma process signals. Can anyone suggest Input and Output
Circuits for this application.
Insturmentation
using 4 to 20 ma process signals. Can anyone suggest Input and Output
Circuits for this application.
Comments
Just an idea : if you connect your 4-20 mA output to a 50 ohms resistor, you
get a 0.2-1.0 volt value that you can read into the Stamp thru an ADC.
Best regards,
Philippe Derenne
Original Message
From: <b-rowan@h...>
To: <basicstamps@egroups.com>
Sent: Tuesday, August 29, 2000 9:24 PM
Subject: [noparse][[/noparse]basicstamps] 4 To 20ma Analog I/O
> I would like to interface Stamp I and II to Industrial
> Insturmentation
> using 4 to 20 ma process signals. Can anyone suggest Input and Output
> Circuits for this application.
>
>
>
>
>
which has either a 0-2Volt or 0-10Volt full scale input as the control
signal. Love the I.C. - its output is extreemly stable. I haven't
interfaced it to a BS2 as yet, but believe that the 0-2V or 0-10V control
signal could be generated from the BS2 via a D/A converter. Try Maxim at
www.maxim-ic.com they have an incredible variety of micro-controler
interface products.
Hope this helps,
Tim
Original Message
From: b-rowan@h... <b-rowan@h...>
To: basicstamps@egroups.com <basicstamps@egroups.com>
Date: Tuesday, August 29, 2000 12:24 PM
Subject: [noparse][[/noparse]basicstamps] 4 To 20ma Analog I/O
>I would like to interface Stamp I and II to Industrial
>Insturmentation
>using 4 to 20 ma process signals. Can anyone suggest Input and Output
>Circuits for this application.
>
>
>
>