General settings (bus coupler)

Process image aktiv:

You can run a maximum of 4 process images depending on the bus coupler. Each process image has it's own menu to do the configuration. With a tick in the check box "process image activ" you can activate the process image.

Auto-configuration:

During the boot process, the bus coupler is creating the I/O process image of the connected bus terminals. With a tick in the check box, the auto-configuration can be activated. If it is deactivated, the bus coupler is booting with a configurated process image of the bus terminals defined at "programmed configuration".

Analysis of complex bus terminals:

Beckhoff provides a wide product range of different bus terminals to control sensors and actors. In general you can differentiate between digital and complex bus terminals. Each bus terminal that is exchanging byte information with a bus coupler is belonging to the group of complex bus terminals. This could be for example analogue but terminals, communication bus terminals or incemental encoder. With a tick in the check box "analysis complex terminals" you can activat the analysis which means, each complex bus terminal connected to this coupler is sending all its data. Example: A KL3002 would also send the control and status byte. Further information about the complex bus terminals you will get from the specific documentation.

Motorola complex bus terminals:

This option is needed to select the required process image. With a tick in the check box you select the Motorola format without, you select the Intel format. The Motorola format is using the high data byte of the word at the lowest adress offset of the storage space. By using the Intel format it is the other way around.

e.g.:
Adress Offset High Byte Low Byte
Motorola Format: $0 D0 D1
Intel Format $0 D1 D0

Motorola-Format (digital bus terminals):

By selecting the Motorola format with digital bus terminals, the high byte together with the low byte of two back-to-back "digital bytes" are getting twisted (in consumtion 16 consecutive digital channels).

Word Alignment:

By selecting "word alignment" you define the length of a word (even byte adress) in the memory of the process image.

Free run input image:

The bus coupler is exchanging the process image of input bus terminals automatically. The free run of the process image asynchronous to the field bus.

Free run output image:

The bus coupler does an automatic asynchronous exchanging of the output terminal's process image. A synchronization with the field bus does not taken place, wich can lead to an inconsistency of the bus coupler data (e.g. BK2000).