REXROTH IndraDrive Fc FCS01, Operating Instructions Manual

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Rexroth IndraDrive FCS01.1 Control Communication - Field Busses and Protocols
15-47
DOK-INDRV*--FCS01*****-IB01_EN-P
USIP Data Transfer - Structure of the Useful data
Structure of the Useful Data
see Chapter "Profibus - Structure of the Useful Data"
Types of Parameter Process Objects (PPO Types)
For cyclic data transfer, the parameter process data object (PPO) is
defined which is used to transfer process data (PCD) and parameters
(PIDV) from the master to the converter. The converter can handle PPO
types 1, 2, 3 or 4.
Type Task
PPO1 extended parameter telegram with 32 bit parameter value and
process data
PPO2 telegram with extended process data (main and two secondary
command values) and 32 bit parameter value
PPO3 process data telegram with main command value without
parameter data
PPO4 extended process data telegram with main and secondary
command values without parameter data
Fig. 15-62: PPO types
PPO 3 and PPO 4 are pure process data objects for applications which
can do without cyclic parameter handling.
The following graphic shows an overview of the supported PPO types.
PIDV PCD
PID IND PV PV PCD1 PCD2 PCD3 PCD4
CTW SP1 SP3 SP2
STW AV1 AV3 AV2
1.
word 2.
word 3.
word 4.
word 5.
word 6.
word 7.
word 8.
word
PPO 1
PPO 2
1.
word 2.
word 3.
word 4.
word
PPO3
PPO4
Fig. 15-63: supported PPO types
Note: For the PPO types 2 and 4, 6 words each must be reserved
for the address section of the process data (PCD) by reason of
the protocol definition. The last two words are not used for the
process data telegrams; they are only reserve sections.
Description see Chapter "Profibus Telegram Structure".
The converter does not respond with the PPO types received
last. A change of the PPO types is possible at any time.