CC-Link IE Field network is the first open-technology gigabit Industrial Ethernet network extended down to the field device level. It combines the best of existing technologies and applies them in a highly reliable architecture that provides exceptional data bandwidth and transaction rates. CC-Link IE Field provides seamless control data transmission between automation controllers such as PLCs and computers and field devices such as digital and analog I/O, pneumatic valve manifolds, RFID readers, VFDs, motion controllers and other factory assets. It connects up to 121 stations on a single network while providing deterministic data exchange at gigabit speed without the need for Ethernet switches. CC-Link IE Field offers both “Cyclic” and “Transient” methods of data exchange based on well-proven token passing technology and an optimized protocol. Cyclic transmissions provide real-time, transparent data delivery services to all stations. A “common memory” model configured by a few simple parameter settings establishes deterministic data exchange for the entire network. Specific data delivery timing can be calculated accurately before a network is commissioned. The second method of CC-Link IE Field communication is the “Transient” mode. Transient messages are initiated “on-demand” from a specific station. Transient messages can be sent to one or more network stations and these stations can respond to Transient requests for data. CC-Link IE Field allocates Transient mode bandwidth so that Cyclic communication remains deterministic.
Feature and Benefits:
Ultrahigh Speed - One gigabit-per-second transmission and real-time protocol enables control of remote I/O field devices with essentially no transmission delay. This transmission rate is at least ten times faster than currently available Industrial Ethernet based networks. The new network uses commercially available Ethernet physical layer components such as Cat5e cable and RJ45 connectors.
Inherent Determinism Without Ethernet Switches - A significant difference between CC-Link IE Field Network and other Industrial Ethernet solutions is that CC-Link IE Field Network delivers deterministic control communications without requiring the addition of Ethernet switches. This feature eliminates the hardware costs and engineering implementation costs of those switches. Also, the cost and need for developing communication statements to govern the flow of data is eliminated due to the shared memory concept of CC-Link IE Field. No knowledge of the protocol is required, and determinism is guaranteed by the network token-passing technique.
Flexible Topology - A CC-Link IE Field Network allows for a topology best suited to the needs of the particular application – thus ensuring greatest flexibility. These topologies include star, line, mixed star and line, and ring. Within a single network there can be a total of 121 stations with up to 328 feet (100 meters) of Cat5e cable between each station. In addition, as many as 239 CC-Link networks can be interconnected allowing vast exchange of data to suit any application.
Seamless Communication - CC-Link IE Field networking enables seamless communication of data from field devices to controllers and from controllers to other controllers in order to form an integrated network for transmitting data at gigabit speed.
Integration with TCP /IP Field Devices - Automation equipment manufacturers can easily make their products compatible with CC-Link IE Field networking. By adding SLMP firmware to products having an RJ45 Ethernet port and TCP/IP (or UDP/IP) capability, these products can function on a CC-Link IE Field network. The CC-Link Partner Association can assist equipment manufacturers in this process.