HMS Anybus X-gateway CANopen Series User Manual page 13

can be exchanged in each direction. Please note that the actual number of bytes that can be exchanged
is highly network dependent.
Through the dedicated control word, the master on the PROFIBUS network starts/stops the exchange
of data on the CANopen subnetwork, and also reset the gateway if needed. The master on the PROFI-
BUS network can see the status of the CANopen subnetwork in the corresponding status word.
The amount of data that shall be exchanged, and the use of the control- and status functionality, is spec-
ified separately for each application. This means that even though up to 510 bytes of data can be for-
warded to an interface, the amount of data that will actually be exchanged on that network is determined
by the CANopen settings, with consideration taken to the limits of the interface.
The available control- and status functionality is described in "Data Exchange" on page 23. Also note
that the terminology and definitions used for different types of data vary greatly between different net-
working systems. All data transported through the Anybus X-gateway CANopen is fast, cyclic data and
is simply referred to as 'I/O Data' in this document.
Anybus X-gateway CANopen - PROFIBUS
Doc.Rev. 1.02
Anybus X-gateway CANopen - PROFIBUS 9
Doc.Id. SCM-1200-080