An electronic survey of Industrial Networking readers was conducted in February, 2014, in order to identify usage and application trends of I/O modules among the magazine's readership.
When asked about their connectivity the majority of respondents connect with 4-20 mA (70%) and hard wiring (68%). Ethernet flavor (53%), Serial (40%), HART (38%) and Process Fieldbus (32%) rounded out the top 6 most used.
