Setting the interface parameters

The parameterization of the module can be set in the CoE (CAN over EtherCAT) list.

Parameterization via the CoE list (CAN over EtherCAT) Please note the following general CoE notes when using/manipulating the CoE parameters: - Keep a startup list if components have to be replaced - Differentiation between online/offline dictionary, existence of current XML description - Use "CoE reload" for resetting changes

The following CoE settings are possible from object 0x8000 and are shown below in their default settings:

Continuous transmission of data

A continuous data stream is indispensable for many applications. For this purpose, the Beckhoff modules feature the "Enable send FIFO data continuous" setting in the Settings object. The internal transmit buffer of the box can be filled first by setting this switch. After that the entire contents of the buffer can be transmitted without interruption. To this end, data will be sent from the controller to the box as in a normal transmission. The data from the buffer is only sent with a rising edge of the "Send continuous" bit. If the data has been transferred, the box informs the controller by setting the "Init accepted" bit. "Init accepted" is cleared with "SendContinuous".

Optimization of transfer rates

In normal operating mode the data received will be adopted immediately into the process image. In order to enable a contiguous data stream, the "Enable transfer rate optimization" option in the Settings object is activated by default. Due to this switch, the data will first be stored intermediately in the receive buffer (864 bytes).

The data will only be copied into the process image if no further character is received for 16 bit times or if the buffer is full.