Test & measurement
as centralised power allows the use of back-up solutions with uninterruptible power supply systems. Also, devices can be remotely powered down during periods of low usage or to maintain security or safety. PoE is also cost-effective as its uses “off-the-
shelf” components, easily sourced from many vendors. The same equipment can be used in the office or in industrial applications, cutting procurement costs. ABB PoE has been trialed by several pilot
customers, one of whom said: “PoE is very good to have, giving a good possibility to reduce installation costs.” Because it uses only one cable, PoE allows
daisy chaining of the network - making the whole network smarter and easier to set up. It also gives access to real-time data, vital for the control of very fast processes. On board web servers providing real
time data also bring the possibility of remote verification of instruments. ABB will offer a web server link to its SRV500 for verification to ensure that its license management can still be used. Ethernet supports all these technologies and
techniques, being harmonised for PoE, cloud computing, full parameterisation, online trending and verification.
More data Means More control
As the data handling capabilities of networks improves, there will be a greater use of data to control processes. More devices with Ethernet
capability will mean customers have more options to gather and interpret data. As an example, Ethernet allows customers
to better monitor KPIs, by pulling data to the office and ensuring better control, leading to less waste and a higher quality product. For example, it could help a food and beverage company use the right amount of oil or flour in a mixing vessel, only paying for what it needs. Control systems such as the ABB 800xA are
extremely capable and Ethernet is a very good way of getting data into them, as it makes data more predictable and usable. The reporting of fault conditions is vital to
continued production but previous generations of instruments did not have much information on this and could not really report error information. Today, using digital instruments allied to the abilities of Ethernet, we can discover the problem and decide what to do about it. Because of its remote access to data,
Ethernet allows manufacturers to troubleshoot systems and diagnose faults and offer expert advice to operatives. As an example of this, ABB’s digital service
can use Augmented Reality to guide a customer’s own engineers to fix a fault. This is ideal for situations such as troubleshooting instrumentation on a ship in the middle of the ocean. Ethernet allows greater access
to a customer’s data sent from Edge computing facilities to the Cloud. One international chemical company that stores products on a
wide range of sites found that the data on which product wat at which site was not transparent enough and not available in real time. Switching to Edge computing and Ethernet accessible data, it built a system that gives it one place to find and manage its inventory, allowing a better understanding of what product is located where. Ethernet thus goes beyond the purely
operation level of productivity and maintenance - using it as the basis to exchange company wide data can lead to major improvements across finance, stock management, the ordering of constituent ingredients and many other aspects of industrial companies. Its clear advantages of ease of use and top performance will benefit everyone with an interest in process measurement.
ABB
www.abb.com/measurement
Ethernet makes it easy Instrumentation Monthly September 2021 27
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