Reference 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 consumption 16 consecutive digital channels). Word Alignment: By selecting "word alignment" you define the length of a word (even byte address) 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, which can lead to an inconsistency of the bus coupler data (e.g. BK2000). 4.2.2 Controller: Common settings Nov Ram active If checked, retain data (VAR_GLOBAL RETAIN var1 AT%MB… END_VAR) gets copied to the NOVRAM of the BC/BX controller. Store BC Controller State in Memory If this box is checked, the K-Bus and fieldbus status information get copied into the memory area (%MB…) of the BC/BX controller. See Beckhoff Information System: "GetFBusStatus" resp. "GetTBusStatus". Compare terminal configuration The Bus Terminal configuration gets stored during boot project creation.
If the physical Bus Terminal configuration gets changed after boot project creation, the boot project wouldn't start. If this box is unchecked, the boot project would start even with changed hardware configuration [default = checked]. KS2000 87 Version: 6.2.0