Analog Examples

[Mr JJ 0]

Hi, I never used an analog I/O card in any project I.,ve done, but now I going to use an 1762-IF4 9 (4 -20ma). Im looking for examples of prgramming the 1762-IF4. I will be using a Keyence Ultrasonic sensor analong output. I like to play with it and learn but I'll be doing this on site. So if anyone can direct me to a turtorial or example program for the RSlogix 500 i would greatly appricate it. Thank you in advance for your help Mr JJ

[Mickey 71]

What processor are you using? Is the card already installed? If so can you post your .RSS file here. What does the Ultrasonic measure? What does its 4-20ma represent ( engineering units)

[Mr JJ 0]

Using the ML1200 1762-L24BWA PLC, Dont have any of the hardware yet, just trying to beat the learning curve The sensor measures liquid height ( small S/S tank ) Hopefully measures low high points to start/stop a pump and when tank is empty, turn on an alarm. Engineering Units all i know is its an analog signal putting out 4 -20ma. I dont have any ladder logic as of yet. Im just looking for a turtorial or examples how its done. Correct me if Im wrong , I would assume there all program basically the same? Thank you

[Mickey 71]

No. See .RSS file below for an example program for your analog card. Card is setup for a 4-20ma input and scaled for PID data format. I also scaled to raw input to 0-100% for human viewing using the "SCP" instruction. You can view the setup under I/O configuration. also see PDF below for different data formats if desired. And a link to the manual. http://literature.rockwellautomation.com/i...in012_-en-p.pdf TestAnalog.RSS 1762IF4DataFormat.pdf Edited 23 Mar 2010 by Mickey

[Mr JJ 0]

Thank you Mickey Just looking at the .RSS you sent me, looks very simple. Thanks again for your help...MrJJ

[Mickey 71]

Your welcome.

[Mr JJ 0]

Mickey, I dont have a need for it now, but can I use the same instruction (SCP) for a analog output (1762-IF20F2) ? Mr JJ

[Mickey 71]

Yes.