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Profile of PMCtendo DD4
The PROFIBUS-profile PROFIDRIVE includes the following parameter process-data objects (PPO):
PMCtendo DD4 only uses the PPO-type 2 (with 4 words PKW-section and 6 words PZD-section).
The PKW-section is used mainly for the transmission of parameters for the servo amplifier, the
PZD-section is used principally for handling motion functions.
The instrument profile can be divided into two sections or data channels:
1.
PKW-section (4 words)
2.
PZD-section (6 words)
The PKW data channel can also be termed the service channel. The service channel only uses
confirmed communication services, and is used by PMCtendo DD4 as a parameter channel.
This channel has no real-time capability.
The PZD data channel can also be termed the process data channel. The process data channel
uses unconfirmed communication services. The response of the servo amplifier to an unconfirmed
service can only be seen in the reaction of the instrument (status word, actual values).
This channel has real-time capability.
- A.4.016.3/1
User manual PROFIBUS DP PMCtendo DD4
Page 15
4 Profile of PMCtendo DD4