Control Design had conducted the electronic survey from Industrial Networking readers in February 2014 to find out what is the most popular I/O modules in usage and application.
According to the survey, 70% of respondents answered they connect with 4-20 mA the most. The second popular connectivity is hard wiring with 68%, the third Ethernet 53%. Serial (40%), HART(38%) and Process Fieldbus(32%) are also popular tools for connectivity in the industry. Please click here to download the survey result.
Image Courtesy : Controldesign
Source : Controldesign