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Technology be sent to the central system after data is processed locally. Solutions that support such local intelligence will also help in reducing the data load on an industrial network. On-demand communication An Industrial IoT Gateway is a critical component of an effective Industrial IoT solution. The gateway is used to mass-deploy devices at the field site, acquire data from these devices, and route this data on demand to the central system, to other devices, or to a remote site. However, the complexity of routing heterogeneous data in a network and the stability of the network link might hinder the progress of your solution deployment, and create bottlenecks for remote data transmission. An IoT solution that can simplify data acquisition from devices that use the most popular Modbus protocols and route this data using built-in 4G LTE communication capability will enable efficient, on-demand transmission of data, and faster response times. Future-proof solutions Keeping in mind how rapidly the Industrial IoT field is changing, a scalable solution that can adopt and implement a new technology will give you good returns on your investment. For example, if your service provider decides to upgrade to a newer technology like 4G LTE, substantial changes in your network infrastructure might be required to maintain basic connectivity. Older communication standards such as 3G may no longer be supported and you will have to upgrade to the new technology. As more and more service providers jump on the 4G LTE bandwagon, the sooner you adopt this new technology the better off your business will be. Rather than wait for the change to swing into action, a better solution would be to proactively seek out systems and solutions that are future-proof or require minimum change to adopt or support newer technology. Embracing new technologies has the potential to provide substantial gains and make your system work in more efficient ways than you might otherwise have imagined. Your Industrial IoT solutions can benefit immensely from the following new features: • Built-in packet routing and logging service for wireless networks • LTE management support for smooth deployment and higher maintainability of devices • MQTT support for machine-to-machine communication and to enable remote devices to communicate directly with the cloud • RESTful APIs for data integration with other systems RESTful APIs for gateway configuration take advantage of HTTP methodologies. Challenges: Case-In-Point To understand the changing landscape of the Industrial IoT world, let us consider the example of a power utility provider. To maintain the stability of a power grid, the provider must often isolate or cut off connections with the sections of the network where a surge or an abnormality is detected. This means that the sensor deployed at the location will detect an issue and then use the WAN to send an alarm notification to the centralized Power SCADA system, which in turn sends a signal to the circuit breaker in the affected area to isolate the section of the transmission network. This entire process could take up to 30 seconds, which is too slow in the case of a power transmission grid. To prevent this situation, the problem must be isolated immediately. Local intelligence in the edge device, in this case the sensor, is very critical so that a signal to trip the circuit breaker when a problem is detected can be processed and sent immediately from the sensor itself. This case illustrates a clear need for an intelligent IoT gateway or an intelligent edge device for faster decision making. A centralized architecture where the data is sent to the Power SCADA for processing does not provide the fast response time that is required. The power utility provider is also responsible for providing backup power to the consumers affected by a power outage. This means that a change in the state of the power transmission system should immediately trigger the backup generator located at the consumer’s site to kick in and provide backup power. Once the situation is rectified, the sensor deployed at the backup generator should sense the change in status and switch the power supply back to the grid. This solution can be implemented using an Industrial IoT system consisting of an Industrial IoT gateway and sensing devices. Software solutions ThingsPro software technology enables IT experts who have limited knowledge of industrial automation to master data-oriented IoT applications. IoT gateways leverage the capabilities of an Industrial IoT gateway, while still providing a computing platform that eases IIoT deployments so that system integrators can focus on their core competency to deliver solutions and services faster with minimum effort. The goal is to develop the ThingsPro suite further by supporting it on more of our edge-computing platforms. IIoT gateway solutions offer: • Easy-to-use GUI for data acquisition with the most popular Modbus protocols and with LTE-enabled routing capability • Future-proof for local intelligence • MQTT support for a lightweight, asynchronous data exchange protocol in heterogeneous applications • RESTful APIs for gateway configuration that implements HTTP methodologies The objective is to provide a solution that combines the capabilities of a pure computing platform coupled with a data logger and LTE router. ThingsPro software saves setup time by handling the Modbus data acquisition and wireless management requirements, especially LTE, while providing flexibility to extend the capabilities of existing IIoT gateways. Johnny T.L. Fang, Product Manager, Moxa Inc. 44 industrial ethernet book 2.2018 SOURCE: MOXA


Industrial Ethernet Book 104
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