As a slave, the NA9187 fieldbus node establishes the connection between the
the FnIO system and the PROFINET 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
extension modules (data exchange bit by bit) is arbitrary and can be
can be mixed. The internal process image of the fieldbus node
NA9197 is stored in the memory of the relevant controller via the PROFINET fieldbus.
responsible control unit. By dividing the process image into
process image into an input and output data area, the process data is
the process data is read in via the PROFINET, processed further in a
controller and the process output data is output via the PROFINET.
PROFINET.
The automatically generated process image is created in the order of the expansion
expansion modules in their slots.
If the number of digital I/Os exceeds 8 bits, an additional byte is
byte is started by the fieldbus node.