Lenze ELCAMZIxxx4SNNPSNN (LCU122) - Manual (Page 54)

PROFIsafe on board
Parameter data transfer
DRIVECOM parameter data channel (DP-V0, cyclic)
6
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54 EDSLCMX3024-SPS EN 5.0
6.4.1 DRIVECOM parameter data channel (DP-V0, cyclic)
Addressing of the Lenze parameters
For the DRIVECOM parameter data channel, the parameters of a device are not addressed
directly via Lenze code numbers, but via indexes (byte 3 / byte 4) and subindexes (byte 2).
The Lenze code numbers are converted into indexes via an offset (24575
dec
or 5FFF
hex
):
Addressing of the Lenze codes Example for C0001 (operating mode)
– PROFIBUS index =
24575 - Lenze code number
– PROFIBUS index =
24575 - 1 = 24574
– PROFIBUS index
hex
=
5FFF
hex
- Lenze code number
hex
– PROFIBUS index
hex
=
5FFF
hex
- 1
hex
= 5FFE
hex
Lenze parameters are mainly represented in the fixed point format, data type integer32
with four decimal digits. For this reason, the value of the parameter or the value of the code
must be multiplied by 10000 in order to obtain integer values.
This parameter value is entered into the user data (byte 5 - byte 8) of the telegram.
Telegram structure
(overview)
The telegram of the DRIVECOM parameter data channel consists of a total of 8 bytes. The
individual bytes are described in detail on the following pages.
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
Service Subindex Index
High byte
Index
Low byte
Data 4 /
Error 4
Data 3 /
Error 3
Data 2 /
Error 2
Data 1 /
Error 1