Technote #5 - How to use SIM-ALP2 with 1762-IF4 and 1762-IF2OF2 module in Current Source and Two-Wire modes


To get stable input functionality above 10mA with the SIM-ALP2 on a 1762-IF4 and 1762-IF2OF2 in current source and current 2-wire modes, it’s recommended to connect 0.1uF 50V capacitor in parallel with Analog Input (between terminals IN+ and IN-)
Here is an example of a capacitor that can be used:
https://www.digikey.com/product-detail/en/vishay-bc-components/K104K15X7RF5TH5/BC1101CT-ND/286723

Further information can be found at Rockwell Automation Technote 116359 - 1762-IF4 & 1762-IF2OF2 series A - incorrect readings from pressure sensors

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/116359

cap3.png