6.3.4 |
Typical Usage ..................................................................................................................... 43 |
|
6.3.5 |
Operations ......................................................................................................................... 43 |
|
6.3.6 |
Security .............................................................................................................................. 43 |
|
6.3.7 |
Safety ................................................................................................................................. 43 |
|
6.3.8 |
Gateways ........................................................................................................................... 43 |
|
6.4 |
Functional Viewpoint ......................................................................................................... 44 |
|
6.4.1 |
Core Framework Layer Functions ...................................................................................... 44 |
|
6.4.2 |
Core Transport Layer Functions ........................................................................................ 44 |
|
6.5 |
Implementation Viewpoint ................................................................................................ 45 |
|
6.5.1 |
System Architecture Considerations ................................................................................. 45 |
|
6.5.2 |
Data Considerations .......................................................................................................... 45 |
|
6.5.3 |
Performance Considerations ............................................................................................. 45 |
|
6.5.4 |
Scalability Considerations .................................................................................................. 45 |
|
6.5.5 |
Availability Considerations ................................................................................................ 45 |
|
6.5.6 |
Deployment Considerations .............................................................................................. 45 |
|
6.5.7 |
Network Layer Considerations .......................................................................................... 45 |
7 Connectivity Standards .................................................................................................... 46 | ||
7.1 |
IIoT Connectivity Framework Standards ............................................................................. 47 |
|
7.1.1 |
Data Distribution Service ( DDS )......................................................................................... 47 |
|
7.1.2 |
Web Services Using Hypertext Transfer Protocol ( HTTP ).................................................. 49 |
|
7.1.3 |
Open Platform Communications Unified Architecture ( OPC-UA )..................................... 49 |
|
7.1.4 |
oneM2M ............................................................................................................................ 51 |
|
7.2 |
IIoT Connectivity Transport Standards ................................................................................ 52 |
|
7.2.1 |
TCP and UDP over IP .......................................................................................................... 52 |
|
7.2.2 |
Constrained Application Protocol ( CoAP ).......................................................................... 52 |
|
7.2.3 |
MQTT ( formerly MQ Telemetry Transport )....................................................................... 53 |
|
7.3 |
Fieldbus Technologies ........................................................................................................ 53 |