As a slave, the NA9161 fieldbus node establishes the connection between the
the FnIO system and the CANopen fieldbus.
The I/O modules used are automatically recognized and the fieldbus node
fieldbus node creates a local process image. The sequence of the
analog extension modules (data exchange word by word) and digital
(data exchange bit by bit) is arbitrary and can be mixed.
can be mixed. The internal process image of the fieldbus node
NA9161 is stored in the memory of the relevant controller via the CANopen field bus.
responsible controller via the CANopen field bus. By dividing the
process image into an input and output data area, the process data is
the process data is read in via the CANopen bus, processed further in a
controller and the process output data is output via the CANopen bus.
CANopen bus.
The automatically generated process image is created in the order of the
expansion modules in their slots.
If the number of digital I/Os exceeds 8 bits, a
byte is started by the fieldbus node.