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3. “PROFIdrive” Profile

3.1. PPO TYPE

The PPO type of PDP002Z is set up by this parameter.
The PROFIBUS-DP protocol uses so-called PPOs (Parameter/Process Data Objects) in
cyclic communication. The figures below show the PPO types and configurations that the
PDP002Z supports.
PKW PZD
PKE IND PWE
PZD1
STW
ZSW
PZD2
HSW
HIW
PZD3 PZD4 PZD5 PZD6
PPO TYPE 1: Octet-String 12
PPO TYPE 2: Octet-String 20
PPO TYPE 3: Octet-String 4
PPO TYPE 4: Octet-String 12

PKW: Parameter ID/value
PZD: Process Data, cyclically transferred
PKE: Parameter ID (1st and 2nd octet)
IND: Sub-index (3rd octet), 4th octet is reserved
PWE: Parameter value (5th until 8th octet)
STW: Control word
HSW: Main setpoint
ZSW: Status word
HIW: Main actual value
* There are some by which a high byte / low byte is conversely treated depending on a master.