Bryan Whitfield

Tim,  unfortunately not, on the onboard AI. Pturmel, lol on the brutal pricing.   I'm making my rounds with our sister sites to see if I can borrow a 5343 and rack and cards long enough for the test. I found one in Tampa, be driving all day and night to get.   Again,  Many, Many Thanks, Bryan 

Thanks Pturmel and Tim, You have confirmed my thoughts.  I'm digging through dusty shelves all over the country trying to find a PLC I can go pick up.   Many Thanks,,,,and Tim, I really enjoy your YouTubes, they've bailed me out more than once.  I was shocked when I saw you pop up in a reply.   If anybody thinks of a miracle, please post back.   Thanks to all Bryan

CompactLogix 5343

Hello, I have a 1400 with a 1762-IF4 analog input card.   I am using a LVDT for positioning on a hydraulic cylinder.   The LVDT is reading fine and resolution is good. Input configured for 0-10, no problems there. I have the AI Channel filter set to " None, 130 ms update" ( lowest setting) MY PROBLEM: I need to stop the cylinder on a dime with dependable repeatability.  Not getting that result. I am currently of the troubleshooting opinion that the AI is too slow for what I'm trying to do (Remember-Filter at "None, 130 ms update")( or, am I misinterpreting the 130 ms)  I have this exact same LVDT in other applications with other AB PLCs, ( all be it, newer ones) with profound accuracy.   Does anyone know of a corner I'm not looking into? Please help.  Factory Acceptance Test tomorrow!!! Doesn't look like I'm gonna make it.   Thanks, Bryan Whitfield