22 Overview of the PROFIBUS network and the FPBA-01 module
In PROFIBUS communication, the master station – usually a
programmable logic controller (PLC) – polls the nodes which
respond and take the actions requested by the master. It is also
possible to send a command to several nodes at the same
broadcast; in this case the nodes do not send a response message
to the master.
The PROFIBUS protocol family is specified in the IEC 61158
standard. The communication with a drive is defined in
PROFIdrive-PROFILE – The PROFIBUS Profile for Adjustable
Speed Drives. For further information on PROFIBUS, refer to the
above-mentioned standard.
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