There are often web pages asking such questions: “Which industrial Ethernet is better?” It is not difficult to understand that every company wants to focus on the most market-oriented solutions in the future. However, this question is not easy to answer. There are many different Ethernet technologies, such as Ethernet/IP, Profinet, Modbus TCP, EtherCAT, Powerl ink... These networks are based on different technologies and protocols (DCOM, CIP, IP, etc.), and there are different camps behind them. Vendor support, these factors make the Ethernet market so complicated. This market is not single, so there is definitely more than one technology to win.
The advice given by the swordsman is that users need to consider Industrial Ethernet from two perspectives: platform-oriented solutions and application-oriented solutions.
Platform-oriented approach
The biggest feature of the platform-oriented approach is its wide applicability. They are the subject of control logic, routine control, motion control, information control and security. Considering the system cost problem, it also provides a channel for inheritance and integration with traditional networks. This makes the implementation of the new system quite simple.
In addition, software is an important aspect of the broad applicability of such solutions. When Industrial Ethernet first appeared, automation vendors couldn't use a different physical network, and everyone had to operate on an Ethernet platform. However, they seek differentiation at a higher level, especially in terms of software and protocols. These differences are valuable to the end user. Software is a milestone. Automation engineering software, modules and simulation, engineering resource reuse, management change, and effectiveness have become the most important concerns for end users. These platforms also include diagnostic and management software, remote diagnostics and service software, and products that integrate process information and automated diagnostic information with enterprise management systems such as ERP.
What really makes these programs so eye-catching is that they raise all the issues that large manufacturing companies might care about in their long-term operations. Ethernet/IP, Modbus TCP and Profinet are classified as platform solutions.
Application-oriented approach
The broad applicability of this type of solution is lower than that of the platform. But from another perspective, they are more focused in specific areas. Most of these programs focus on machine control and motion control and strive to exceed existing performance and limits. These technologies also include device diagnostics, software solutions and integrated interfaces, but their support field is focused on more subdivided areas than on all factory production systems. They strive to improve performance to a higher level and optimize and upgrade machine grades and motion systems. EthernetCAT, Ethernet Powerl ink is classified as this class.
how to choose?
For all manufacturers or machines, is it only one of the technologies that is the “right” solution? of course not. Manufacturers must weigh the value of the two types of programs. Is there another profit that is more valuable than the benefits of using a common solution? If so, how do these solutions compare to the cost of maintaining another plant layer technology and corresponding supplier relationship within a few years? This is a critical issue and only the end user can answer.

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