Parameter data transfer
PROFIdrive parameter data channel
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EDS82ZAFPC201 EN 4.0
8.2
PROFIdrive parameter data channel
Data communication with PROFIBUS−DP−V0 is characterised by cyclic diagnostics and
cyclic process data and parameter data transfer.
An optional service extension is the acyclic parameter data transfer of PROFIBUS−DP−V1.
This service does not impair the functionality of the standard services under
PROFIBUS−DP−V0.
PROFIBUS−DP−V0 and PROFIBUS−DP−V1 can be operated simultaneously in the same
network. This enables the step−by−step expansion or modification of a system.
The services of PROFIBUS−DP−V1 can be used by the master class1 (PLC) and the master
class2 (diagnostics master etc.).
The integration of the acyclic service into the fixed bus cycle depends on the corresponding
configuration of the master class 1:
ƒ
For an existing configuration a
time slot is reserved
.
ƒ
When there is no configuration, the acyclic service is
appended
when a master class
2 acyclically accesses a DP−V1 slave.
Access to the Lenze codes of the controller
The codes of the first parameter set (C0000 ... C1999) can be accessed directly. A conversion
is not required.
Entering a parameter value
The required parameter value is mapped in the data range.
Lenze parameters are mainly represented in the fixed point format with four places after
the decimal point (data type FIX32, transmission as double word). These parameters are
multiplied by 10000 to obtain integer values.
Example:
Set C0039 (JOG) = 150.4 Hz.
ƒ
150.4 x 10000 = 1504000 (0016F300
hex
)