In the past decades, programmable logic controllers (PLCs) have been widely used in the field of automation, and in the foreseeable future, PLC will continue to thrive. The design of PLCs for discrete control has in fact become a dominant and instrumental tool in the industrial arena.
At present, many modern industrial applications require more functional requirements such as network connectivity, device interoperability, and enterprise data integration, all of which far surpass the capabilities of traditional PLCs based on discrete-logic control. To implement these functions for a PLC-based system, it is essential to have a system-on-a-chip integration with a single processor, gateway or translator, software middleware running on a standalone PC, and specialized software at the enterprise system level. On the website of a PAC supplier, there is a paragraph describing the background to the birth of PAC. They think, PAC can have the function of PC and PLC reliability at the same time, it is the ideal substitute of PLC when realizing complicated control.
However, as the complexity of industrial machines and factory systems has increased, it has been difficult and impossible for PLCs to accomplish all automation tasks. Today's automation systems go beyond the capabilities of PLCs, enabling engineers in the industrial machine industry to integrate more and more advanced I / O, processing and control strategies in automation systems.
The new programmable automation controller (PAC) hardware system is such an extraordinary PLC system extension that can be easily integrated into a PLC system, adding more advanced functions to industrial machines and increasing machine efficiency.
In the next few years, PLC will continue to be used in the field of automation. However, with the improvement of the machine and the demand of automation efficiency, PLC is no longer a panacea. PAC technology provides a good supplement to the PLC, adding the traditional PLC can not provide high-performance I / O and processing. There are many ways to connect a PAC to an existing PLC architecture, so engineers will be able to easily improve their PLC-based automation system.
Insiders said when talking about the value, all components of the PAC are based on the most flexible and convenient software and hardware integration, the lowest cost as the starting point, so it is cross- mechanical automation, electrical automation, instrumentation, computer and other professional. These features give end users the following benefits: lower equipment lifecycle costs, higher ROI for assets, and lower total cost of ownership for the asset owner.
In fact, PAC is not a new thing. As early as the 1990s, the concept of PAC has been proposed, and more than a decade ago, domestic and foreign enterprises have launched their own PAC products.
Advantech (China) Co., Ltd. is the early introduction of PAC products business, its industrial automation business group Cai Qi-men interviewed reporters so explain why PAC started in the industrial automation industry, "as people familiar with the PC continuously Deepen, coupled with the existing controller has been unable to meet the needs of some system integrators and users, PAC application environment has matured. "
However, it is not yet recognized and endorsed by most users when PAC just started to expand its new product offering. There is no shortage of criticisms of PACs between users and system integrators. Some people say that PACs are more expensive, less reliable, and scalable than PLCs; others argue that PACs are not really focused on some immediate or potential market demand, and therefore are ineligible.
JIANGSU OUCO HEAVY INDUSTRY AND TECHNOLOGY CO., LTD , https://www.marinelifting.com