Industrial Networking Enabling IIoT Communication white paper
Working consortia of companies and individuals researching a technology provide great guidance for users of the technology—usually in the form of white papers. The Industrial Internet Consortium (IIC) has been especially prolific lately. This means many companies and individuals see the importance of donating time and expertise to the cause.
The IIC has announced the IIC Industrial Networking Enabling IIoT Communication white paper. The paper serves as an introductory guide on industrial networking for IIoT system designers and network engineers, and offers practical solutions based on key usage scenarios.
“Industrial networking is the foundation of IIoT,” said David Zhe Lou, Chief Researcher, Huawei Technologies. “There are many choices of networking technologies depending on the application, the industrial network, deployment situation and conditions, but there is no universal or preferred industrial networking solution.”
Industrial networking infrastructure and technologies reside at the IP layer and below, and enable industrial assets, such as machines, sites and environments, to connect to the business professionals supporting applications across a wide range of industry sectors. Industrial networking technologies provide the foundation for applications that enable manufacturing productivity and profitability.
“IIoT applications have different needs depending on the industrial application and therefore demand robust, flexible and secure networks,” said Cliff Whitehead, Business Development Manager, Rockwell Automation. “This white paper will help IIoT system designers and network engineers understand the tradeoffs they can consider when designing an industrial network architecture that will be a strong foundation for current and future IIoT scenarios.”
Industrial networking is different from networking for the enterprise or networking for consumers. For example, IIoT system designers and network engineers need to make decisions about using wired or wireless communications. They have to figure out how to support mobility applications such as vehicles, equipment, robots and workers. They must also consider the lifecycle of deployments, physical conditions, such as those found in mining and agriculture, and technical requirements, which can vary from relaxed to highly demanding.
“Networking technologies range from industry-specific to universal, such as the emerging 5G, which meets diverse industrial needs,” continued Jan Höller, Research Fellow at Ericsson. “Industrial developers need guidance when devising solutions to select the right networking technologies, and this white paper is the first step to providing the missing methods and tools.”
The Industrial Networking Enabling IIoT Communication white paper sets the stage for the Industrial Internet Network Framework (IINF), which will complement the Industrial Internet Connectivity Framework (IICF) by detailing requirements and best available technologies for the lower three layers of the industrial internet communication stack.
The full IIC Industrial Networking Enabling IIoT Communication white paper and a list of IIC members who contributed can be found on the IIC website:
The Industrial Internet Consortium is a program of the Object Management Group (OMG).
Wireless mesh networking has been the source of technology and market battles for years in industrial applications. There is one that’s seldom discussed among engineers in this sector, though—Bluetooth. There exists a Bluetooth mesh standard. It’s been out a year. At this point there are more than 65 Qualified Bluetooth Mesh Products.
The dominant application to date is smart lighting systems. Smart home applications are coming along. The Bluetooth SIG talks of other industrial applications. We’ll have to see what develops. If I were an active engineer, I think I would take a look at possibilities. Bluetooth has some longevity and stability. We all use it with our smart devices. Interesting possibilities.
Following is news from the press release. Bluetooth mesh plays a role in the development of emerging markets such as Smart Building, Smart Industry, Smart Cities, and Smart Home. In the year since the release of Bluetooth mesh, more than 65 products with mesh networking capability have been qualified from leading silicon, stack, component, and end product vendors.
Bluetooth mesh networking enables many-to-many (m:m) device communications and is optimized for creating large-scale device networks. Designed to meet the scalability, reliability, and security requirements of commercial and industrial environments, Bluetooth mesh is powering smart building and smart industry implementations where tens, hundreds, or thousands of devices need to communicate with one another effectively. From factories to hospitals, airports, retail stores, and the home, Bluetooth mesh supports building services that bring real value to owners, operators, and occupants.
“Bluetooth mesh is one of a number of fundamental enablers of future IoT markets, allowing for robust, secure and scalable connectivity across the smart home, commercial building automation, industrial environments, and beyond,” said Stuart Carlaw, Chief Research Officer, ABI Research. “Bluetooth mesh, in conjunction with Bluetooth beacons, can propel these environments towards greater automation, increased sensorization, and enable valuable RTLS services. Nearly 360 million annual Bluetooth Smart Building device shipments are forecasted by 2022.”
Lighting control systems have served as a key use case driving the increase in Bluetooth mesh implementations. A building’s lighting system provides a natural grid through which all devices in a Bluetooth mesh network can pass messages and establish whole-building control, monitoring, and automation systems within a facility. This wireless lighting solution can also function as a platform to enable indoor positioning and location services – including point-of-interest solutions, indoor navigation, asset tracking, and improved space utilization.
“Bluetooth mesh has fundamentally altered the conversation around connected lighting by providing a complete, high-performing solution that allows lighting to serve a greater purpose in industrial and commercial spaces,” Mark Needham, Vice President, European Sales at Fulham Co, Inc. “A lighting system that can both help visitors find their way and allow building operators to pinpoint the location of assets within a building or collect a vast range of data from various building sensors for analysis and utilization is only the beginning of what is possible.”
In one year alone, Bluetooth mesh has paved the way for wireless lighting control solutions and has been a driving force in realizing the concept of lighting as a platform. According to ABI Research, annual commercial smart lighting equipment shipments are expected to increase fivefold by 2022.
“We are really excited about the rapid progress our member companies have made using Bluetooth mesh in just one year,” said Mark Powell, Executive Director of the Bluetooth Special Interest Group. “The Bluetooth member community dove straight into developing with the new technology, creating a growing list of product innovations that will steer the evolution and direction of commercial and industrial markets for years to come.”
Ever wonder about the need for the elusive IT/OT convergence? Rockwell Automation announces Factory Talk Network Manager software for its Stratix line of managed (Ethernet) switches. Rockwell OEMs switches from Cisco built to its specifications. Cisco builds good equipment, but it is famous in the networking world for somewhat, shall we say, complex management software.
Control engineers and plant-floor technicians who have growing Ethernet networks to connect all this Internet of Things stuff need something that is closer to their language.
By the way, I still have plenty of catching up to do with things I learned both at Hannover (where I spent many hours with Hewlett Packard Enterprise) and the following week at Dell Technologies World in Las Vegas. I’m finally home and getting organized.
This new management software enables engineers and technicians to monitor the health of their Allen-Bradley Stratix managed switches, troubleshoot switch issues, and quickly configure new managed switches all from one easy-to-use software interface.
“Many plant-floor personnel struggle to piece together information about managed switches and devices from different sources,” said Lorenzo Majewski, product manager, Rockwell Automation. “With the FactoryTalk Network Manager software, they can access this information in one collective spot. In addition, real-time alarms and events from network switches can help them conduct faster, more precise troubleshooting.”
FactoryTalk Network Manager software automatically discovers assets, their associated IP addresses, and creates a topology of these connected devices. The software’s intuitive interface offers grouping of equipment along with dashboard information, so users can organize devices into specific areas or analyze them individually.
The software also uses user-created configuration templates to get new switches up and running faster and more efficiently. These templates can be shared across an organization, or with OEMs and system integrators to further ease network deployments, commissions and maintenance efforts.
The FactoryTalk Network Manager software provides role-based access control with auditing capabilities to help track user-specific activities and changes. The software supports multiple protocols, including Simple Network Management Protocol (SNMP), Common Industrial Protocol (CIP), Modbus, BACnet and PROFINET. Access to the web-based platform is available via a personal computer in a control room or a mobile device on the plant floor.
Partnerships are huge. Especially with industrial automation and software suppliers extending their reach into the enterprise. Here, press releases from rivals Rockwell Automation and Siemens exemplify the pattern. Additionally, this week, I’ve also interviewed Cisco and Intel. Things are getting interesting this spring. We’ll see what I can report back from next week’s Hannover Messe.
Rockwell Automation and Cisco have released new network design guides and white papers to help companies connect mobile devices and deploy end-to-end cloud connectivity while maintaining security best practices. The guides give companies best practices for wired and wireless network architectures when deploying cloud and mobile industrial IoT solutions. The free resources are the latest addition to the Converged Plantwide Ethernet (CPwE) program.
Secure Mobile Connections
The new Identity and Mobility Services guide will help companies connect mobile devices in a way that manages security risks. The guide, based on the Cisco Identity Services Engine platform, supports industrial security by identifying, authorizing and posturing mobile connections at three levels: device, application and user. The guide also helps users establish unified and autonomous WLAN architectures and manage self-service wireless access.
“Mobile devices are changing how we see and manage production,” said Gregory Wilcox, global technology and business development manager, Rockwell Automation. “Workers are accessing analytics on tablets to make better production decisions, even when they’re away from equipment. And they’re using innovations like the FactoryTalk TeamONE app from Rockwell Automation to collaborate through their smartphones. The Identity and Mobility Services guide will help bring these capabilities to life in their facilities while maintaining a strong security stance.”
Connect to the Cloud
The new Cloud Connectivity guide provides guidance for using the FactoryTalk Cloud gateway to establish a more secure connection from the plant floor to cloud-based applications, like FactoryTalk Analytics for Machines. This end-to-end connectivity is essential to deploying capabilities like remote monitoring and support. The design guide addresses the varying levels of security measures that should be considered for small to large companies.
“Industrial companies sometimes focus a lot of their attention on creating an information pathway to the cloud but overlook critical security needs,” said Todd Gurela, senior director, Industry Solutions Group, Cisco. “The Cloud Connectivity design guide will help companies establish end-to-end cloud connectivity while protecting both data paths and the plant network against cyber threats.”
Meanwhile Orange and Siemens
Orange Business Services and Siemens have joined forces to drive the adoption of the Internet of Things (IoT) in the industrial sector by simplifying integration and promoting IoT innovation. The initial focus will be to develop solutions around asset tracking and asset monitoring to optimize the supply chain and improve efficiencies, as well as to develop digitally enhanced products to increase customer satisfaction and create new business models.
The partnership will help businesses connect their machines and physical infrastructure to the digital world, allowing them to translate the wealth of data they produce into business results. Advanced analytics and digital services will help them increase productivity and efficiency across their business.
Orange Business Services brings its global cellular connectivity, consulting, system integration and application development skills to the partnership. The alliance is built around Siemens’ MindSphere, the cloud-based open IoT operating system, and Datavenue, the Orange IoT and data analytics modular offering.
Customers have the option of pre-packaged offerings such as asset tracking, or customized solutions and applications. Orange Business Services will initially provide connectivity components from Datavenue, including cellular and Low Power Wide Area (LPWA) networks. Other Datavenue components will follow.
The partnership will initially focus on Europe, starting with solutions to be rolled out in Germany and Austria.
Time Sensitive Networking (TSN) defines the future of networking. Most of the specifications have been agreed upon by the IEEE 802 committee, only a few remain to be completed. I have written a White Paper describing OPC UA over TSN for information communication. This corroborates the idea that information is where the new momentum lies within manufacturing and production technologies.
One topic of concern to many regards whether or not TSN will supplant current fieldbus technologies. Indeed, on the surface it appears that TSN can perform most, if not all, of those functions.
Therefore, it behooves the fieldbus groups to figure out how to work with this new technology in order to add value for users.
The EtherCAT Technology Group (ETG) has taken the initiative and supplemented EtherCAT with Time Sensitive Networking (TSN) technologies, expanding the field of possible EtherCAT applications to include heterogeneous network environments. With the help of TSN, industrial controls can contact a number of different EtherCAT segments in real-time through Ethernet networks.
In doing so, no changes to the EtherCAT slave devices are required: the EtherCAT Device Protocol, including all high performance characteristics, is fully preserved. Also expanded by TSN is the EtherCAT Automation Protocol (EAP) for communication between controls, which will result in even more deterministic performance on this level.
The ETG has specified the technology expansion in the form of a profile, which highlights the fact that no changes to the TSN standards are needed. This approach also considerably simplifies the adaptation to the final versions of the TSN technologies, because specification in the IEEE is not yet fully complete.
The ETG has supported the development of TSN from the very beginning through active participation in the IEEE committee, and is coordinating the specifications through a liaison with the IEEE 802.1 Working Group. This ensures that the ETG will also be able to access the IEEE 802.1 specifications that have not yet been adopted. Therefore, the technology can be introduced almost at the same time as TSN.
EtherCAT uses the TSN streams with any data rates for real-time communication above EtherCAT device segments. In the segment itself nothing is changed – the unique performance of the EtherCAT protocol built upon processing on the fly, highly precise synchronization, flexible topology selection, excellent diagnostic capabilities and simplicity through fully automated addressing of devices are all fully preserved. Similarly, the thousands of different EtherCAT devices available worldwide do not need to be modified at all. The stream adaptation feature that connects the EtherCAT segment to the heterogeneous TSN network can be placed either in the last TSN switch or in the first EtherCAT slave device.
Dr. Guido Beckmann, Chairman of the ETG Technical Committee classifies the new specification as such: “The incorporation of TSN standards will significantly improve the real-time characteristics of generic Ethernet. With our technology expansion we make use of TSN in an ideal way, and exactly where TSN can offer significant advantages – in the factory networks. As one frame is sufficient for EtherCAT to communicate with a whole segment, and thus with the entire fieldbus network, EtherCAT is virtually predestined for integration with TSN networks. We achieve this without turning our technology inside out. EtherCAT together with TSN offers the ‘best of both worlds’. Therefore, this prepares EtherCAT for the future perfectly.”