About: http://webisa.webdatacommons.org/338466145

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The master I/O device typically interfaces with a controller, such as a specially designed programmable logic controller (PLC), that performs process control functions.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com