GitHub

andisama/PLC-Analog-Input-Processing--0-4-20mA

CPU 1214C, compact CPU DC/DC/DC Onboard I/O: 14 DI 24 V DC; 10 DO 24 V DC; 2 AI 0-10 V DC Power supply: DC 20.4-28.8V DC Program/data memory 100 KB 1x Signal Generator to Analog Input Channel 0. only ...
EDN

4-20mA Current Loop Tester

This design will interest technicians who work on pneumatically operated valves and other 4-20mA current loop controlled devices. Although 4-20mA signal injector/calibrators are available, this one is ...
Machine Design

Reasons for 4-20mA signal in LVDT Applications

To reduce noise and voltage drops in analog voltage signals, the market place has adopted an analog current (4-20mA) output as its sensor signaling standard. A very robust signal, 4-20mA current ...
Hackaday

4-20mA

Spare a moment’s pity for the process engineer, whose job it is to keep industrial automation running no matter what. These poor souls seem to be forever on call, fielding panicked requests to come to ...