The development of automation technology is accompanied by the evolution of personal computer-related technologies and new innovations have been introduced. The original barrier-based programmable controllers (PLCs) and PC-based controllers have gradually converged, and programmable automation computers have become increasingly integrated. The advantages of the big class controller came into being. The integration of fieldbus to industrial Ethernet and the popularity of wireless communication products are the development direction of industrial communication products, and it is no exception in the manufacturing industry. In the current application mode, a system or device often has multiple fieldbus coexistence situations. The mutual communication between these buses will bring great troubles to users and integrate them to achieve more efficient production. It is the future development trend. In addition, wireless communication, especially short-range wireless communication, can effectively solve communication problems between narrow spaces or moving parts, which also has excellent prospects in the manufacturing industry.
If one word is used to summarize the characteristics of ICP DAS, then it is "industrialization." The industrialization features of ICP DAS industrial communication products are mainly reflected in the following aspects:
1. Wide temperature: Most of Geiger's products can operate stably in the temperature range of -25 to +75°C, and some products can even reach -40 to +75°C. For special occasions, the company also introduced products that meet IP67 protection levels.
2. Complete electrical protection: ICP DAS industrial communication products have a variety of protection design, such as photoelectric isolation, ESD protection, EFT protection, surge protection and over-voltage and over-current protection, and are suitable for use in industrial environments;
3. A variety of redundant technologies: ICP DAS industrial communication products include a large number of redundant technologies, including CyberRing's real-time ring network redundancy scheme, field bus links and power supply redundancy;
4. Complete product line support: ICP DAS does not treat industrial communication products in isolation, but organically integrates data acquisition products, PAC controller products and industrial communication products to provide users with complete industrial control solutions. Users can choose One or more of networks and protocols, and flexible configuration of industrial control systems and networks.
At present, the network and protocols supported by ICP DAS for the users of industrial communication products include: RS-232/422/485, PROFIBUS, CANBUS, Ethernet, Modbus (RTU/ASCII/TCP), CANopen, DeviceNet, Zigbee and FRnet, etc. Among them, FRnet is a high-speed serial field bus unique to ICP DAS. It has been recognized and supported by many users in the mechanical, traffic and building automation industries. When industrial Ethernet enters the control layer and field layer applications, the most important thing to improve is real-time performance and security. The real-time nature is the key to whether it can be in-depth control layer. Security has higher requirements for the stability and reliability of industrial Ethernet and information security. In addition, the mutual conversion and interconnection between multiple communication protocols are also the bottlenecks in the development of industrial Ethernet.
Today, the real-time nature and security of industrial Ethernet products are the issues that every manufacturer is very concerned about. The company has also made a lot of efforts in these two aspects. Through the QoS mechanism, important data can be transmitted preferentially, which can effectively improve the real-time performance of the system. HTTPS and SSH protocols are supported, and data can be transmitted in an encrypted format, which can improve system security.
In addition, various technologies such as MAC address locking, address filtering, filtering of broadcast signals, VLAN, VPN, and bandwidth management all contribute to the improvement of system security and real-time performance. All manufacturers have seen that high-efficiency industrial Ethernet is the future trend of development, and vigorously expand the market in this area, but the ideas of each company are slightly different. ICP DAS does not pursue unilateral technical or functional leadership based on functional availability and practical needs of users. This can be clearly demonstrated in the development plan of ICP DAS. In the aspect of industrial Ethernet switches, ICP DAS does not involve the backbone network products, but instead will make more efforts to improve the security and flexibility of the products in order to reduce the cost and workload of on-site wiring. The company's follow-up will introduce a variety of POE solutions, which include not only the switches that provide PSE support, but also include PAC controllers, programmable device servers (PDS), distributed I/O modules (PET-7000) supporting Ethernet direct power supply. ) and other network and protocol conversion products. In terms of fieldbus products, the company will vigorously develop protocol conversion products to meet the urgent needs of customers for different field bus interconnections at this stage. ICP DAS has a lot of investment in wireless communication. Currently ZigBee series converters, controllers and I/O modules are ready; the company will also make great efforts in M2M products, and will also invite the attention of the majority of manufacturing users. ICP DAS's remote maintenance products, I believe this series of products can solve many users' existing equipment maintenance troubles.