PROFINET Communication
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Figure 4‑4 Tree topology
4.5 PZD Data
The PZD data is used for the master station to modify and read AC drive data in real
time and perform periodic data exchange. It is mainly used to:
1. Set AC drive control command and target frequency in real time.
2. Read AC drive state and operation frequency in real time.
3. Exchange function parameters and monitor data between the AC drive and the
PROFINET master station in real time.
By default, the written PZD1 is mapped to the control word and PZD2 is mapped to
the frequency reference; the read PZD1 is mapped to the status word and PZD2 is
mapped to the operation frequency. You can manually modify the default value. The
following table lists the interaction data.
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