Signal distribution board

The EtherCAT plug-in modules can be directly attached to a PCB. This application-specific PCB (signal distribution board) distributes signals and power supply to individual application-specific plug connectors, in order to connect the controller to further machine modules.

The signal distribution board shown here is provided as an example, to illustrate the function. Beckhoff offers the development of signal distribution boards as an engineering service. Alternatively, customers can use a design guide to develop the signal distribution board themselves, utilising their own development capabilities and protecting their intellectual property.

Following a functional analysis of a given machine, a basic machine configuration including a set of optional modules can be defined. The basic machine serves as a platform covering standardised machine functions. In order to extend the machine functionality, the platform can later be supplemented by further EJ modules in the various functional areas. The EJ9001 placeholder modules close gaps in the module strand until they are replaced by additional functional modules. In this way, the range of functions of a standard machine can be extended from “Basic” to “Extended” to “High-end”.

 

Basic version

 

The Basic version only covers basic functions; unused function modules in the terminal strand are equipped with placeholder modules.

Basic version

 

Extended version

 

In the Extended version these placeholders are replaced by EtherCAT modules according to the functional units which differ depending on the machine specifications (e.g. by different feedback modules for different motor types).

Extended version

 

High-end version

 

The High-end version uses the full functional range or the complete signal distribution board. In addition, application-specific elements of the control system that are only rarely required can be implemented using EtherCAT. Optional extensions can be implemented using EtherCAT Terminals or EtherCAT Box modules.

 

This approach is particularly beneficial in large-scale machine production, where many of the I/O modules used are identical, thus fulfilling the platform concept.

High-end version