Connectivity Framework
8: Core Connectivity Standards
communication on many IIoT devices, but those devices generally use other mechanisms for the operational communication. For more details on the applicability of HTTP see the detailed assessment template mapping in Annex D.
OPC-UA is managed by the OPC Foundation, and has a standard mapping to web services. A standard gateway mapping of OPC-UA and DDS is under development at the OMG, a standard mapping of OPC-UA on top of DDS is under way at the OPC Foundation, and a oneM2M mapping is under development at oneM2M. OPC-UA is being deployed across manufacturing. This last requirement is not quite met. The precursor technology(“ Classic OPC”) is certainly widespread. Because of that we consider the risk of OPC-UA deployment to be low enough in manufacturing to qualify. Other related industries are beginning to deploy OPC-UA as well, so its applicability will likely expand in the future. OPC-UA is suitable for the operation and application domains. For more details on the applicability of OPC-UA see the detailed assessment template mapping in Annex B.
oneM2M is managed by a partnership of regional international standards organizations to include: ARIB, ATIS, CCSA, ETSI, TIA, TSDSI, TTA, TTC, uses a RESTful style architecture with transport bindings for HTTP and Web Sockets and is scheduled to have established standard mappings to DDS and OPC-UA in the next release, and has been recently deployed across multiple industries. As the standard is quite new( released 2015), deployments are also new and less than what one might require for it to be considered stable and proven across multiple industries. For more details on the applicability of oneM2M see the detailed assessment template mapping in Annex C.
Considering the current state-of-the-art, the criteria for IIoT connectivity core standards, the practicality of maintaining a minimal set of core standards that support many connectivity technologies, and the need to provide effective guidance; the following emerge as potential IIoT connectivity core standards: DDS, OPC-UA, Web-Services, and oneM2M. These standards span aspects of IIoT systems, as shown in Table 8-2. The set of potential connectivity core standards may expand in the future as other applicable standards mature to meet the criteria and address IIoT system aspects. Table 8-2 shows examples of some applications where these standards are often applied.
IIC: PUB: G5: V1.0: PB: 20170228- 56-