Chapter 2. CPU Features & SpecificationsGFK-2222AD April 2018 45Field AgentThe Embedded Field Agent (EFA) port on the underside of CPE400 (Figure 3) is an Ethernet port dedicatedto the Field Agent functionality.Figure 5 shows a typical Field Agent application, in which the role of the CPE400 Embedded Field Agent(EFA) is to gather data locally, then securely transfer selected data to the Predix Cloud via the EFA port.The PACSystems RX3i maintains control over the remaining Ethernet ports on the CPE400, as well as itsserial port. Data from the local environment, obtained via any of these ports, can be manipulated by theRX3i PLC and tagged for use in the Field Control application.The remote user with an acceptable security profile can then access data in the cloud from multipleinstallations, aggregate selected data and make decisions based on the bigger picture. For instance, theCPE400 could be installed in a control system monitoring a single wind turbine. The remote user mightbe monitoring several hundred such turbines. With a suitable dashboard-style application on hiscomputer, the remote user could identify turbines that need to come offline for maintenance, or turbineswhose power generation output could be enhanced or retarded to fit demand.Figure 5: Typical Field Agent Application
