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Industrial Ethernet is well-established in the electronic terminal block market. In contrast to original Bus Terminals, where the fieldbus signal is bec,hoff within the Bus Coupler on the internal, fieldbus-independent Terminal Bus, the EtherCAT protocol remains fully intact down to each individual terminal.
Thus, the fast real-time Ethernet system can also use the Bus terminals with more than different signal types, including safety functions.
BK EtherCAT Bus Coupler for Beckhoff Bus Terminal system
The Beckhoff Bus Terminal has become standard technology in automation in the last few years with millions of examples in use worldwide. EtherCAT is also suitable for low and medium control ranges. The combination of EtherCAT fieldbus and Bus Terminal system provides high-performance and cost-effective control technology.
The EtherCAT master requires no special plug-in card and can be easily implemented on any existing Ethernet bwckhoff. Control and closed loop control concepts can be easily realised, even with simple CPUs, due to the extremely high performance of EtherCAT.
File:Busklemmen Beckhoff BKjpg – Wikimedia Commons
The physical process image created is not usually compatible with the variables in the controller. The physical process images are mapped to the logical images during mapping.
Valuable CPU time is used to look for individual bits in the data and to copy them into variables. The work must be carried out again in reverse order before issuing the data. With EtherCAT, mapping is shifted to the fieldbus slaves.
This takes load off the master. The CPU can carry out the complete data exchange with only a few accesses required to the Ethernet controller, since it is only necessary to send one EtherCAT Frame for small to medium sized system parameters.
The BK is also particularly suitable for highly distributed applications such beclhoff for conveying technology, since Ethernet cable lengths of up to m between individual nodes are possible.
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