PROFINET IO – Communication protocol 327
Standard telegram (ST) types (DP-V1)
Note: For the contents of the Control word, the Status word,
references and actual values, see chapter PROFINET IO –
Communication profiles.
Parameter handling using acyclic parameter
access mechanism (DP-V1)
PROFINET IO offers record read and write services for the acyclic
parameter access mechanism. When the drive parameters or
FENA parameters are accessed, the corresponding slot, sub-slot
and index are set, and a PROFIdrive DP-V1 message is placed on
the data block of the record read or write frame.
ST1 PZD1 PZD2
OUT area STW1
Control word 1
NSOLL_A
Speed set point A
IN area ZSW1
Status word 1
NIST_A
Speed actual value A
ST2 PZD1 PZD2…3 PZD4
OUT area STW1
Control word 1
NSOLL_B
Speed set point B
STW2
Control word 2
IN area ZSW1
Status word 1
NIST_B
Speed actual
value B
ZSW2
Status word 2
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