SEW-Eurodrive DFE32B PROFINET IO - Profidrive Parameter Requests

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Manual – DFE32B Fieldbus Interface PROFINET IO
7
Structure of the PROFINET parameter channel
Parameterization via PROFIdrive Data Set 47
7.2.5 PROFIdrive parameter requests
The PROFIdrive parameter channel of SEW inverters is directly mapped in the structure
of data set 47. Parameter access with PROFIdrive services usually takes place accord-
ing to the structure described below. The typical telegram sequence is used for data set
47. PROFIdrive only defines the two request IDs
Request ID: 0x01request parameter (PROFIdrive)
Request ID: 0x02change parameter (PROFIdrive)
This means there is restricted data access in comparison with the MOVILINK
®
services.
Reading a param-
eter via
PROFIdrive –
example
The following tables show an example of the structure of the WRITE.request and
READ.res user data for reading an individual parameter via the MOVILINK
®
parameter
channel.
Sending a parameter request
The table shows the coding of the user data for the WRITE.req service specifying the
PROFINET header. The WRITE.req service is used to transfer the parameterization re-
quest to the inverter.
INFORMATION
The request ID 0x02 Change Parameter (PROFIdrive) results in remanent write ac-
cess to the selected parameter. Consequently, the internal flash/EEPROM of the in-
verter is written with each write access. Use the MOVILINK
®
service "WRITE Param-
eter volatile" if parameters must be written cyclically at short intervals. With this ser-
vice, you only alter the parameter values in the RAM of the inverter.
Service: WRITE.request Description
Slot_Number 0 Random, (is not evaluated)
Index 47 Index of the data set; constant index 47
Length 10 10 byte user data for parameter request
Byte Field Value Description
0 0x01 Individual reference number for the parameterization request is
mirrored in the parameterization response
1 Request ID 0x01 Request parameter (PROFIdrive)
2 0x00 Axis number; 0 = single axis
3 No. of parameters 0x01 1 parameter
4 Attributes 0x10 Access to parameter value
5 No. of elements 0x00 0 = access to direct value, no subelement
6, 7 Parameter Number 0x206C MOVILINK
®
index 8300 = Firmware version
8, 9 Subindex 0x0000 Subindex 0
00
I