BONFIGLIOLI Vectron ACTIVE CUBE - Handling of Objects; Parameter Access via PKW

8 Handling of objects
8.1 Parameter access via communication channel PKW
The communication channel (PKW range) has the following structure:
Designa-
tion
PKW range
PKE
IND
PWE-high
PWE-low
Contents
Parameter ID
Index
Parameter value
high word
Parameter value
low word
High
Byte
Low
Byte
High
Byte
Low
Byte
High
Byte
Low
Byte
High
Byte
Low
Byte
Data
set
System-
bus
Byte no.
0
1
2
3
4
5
6
7
The data is transmitted in the Motorola format as used by the S7 PLC from Sie-
mens, for example. Thus, the high byte is on the lower byte of the message, and
the low byte is on the higher byte.
The data set is always on the high byte of “Index” (data set/byte no. 2). If system
bus is used, a system bus address is set on the low byte of “Index” (System-
bus/byte no. 3). With this parameter, access to a Systembus client is possible. See
Systembus instructions.
Structure of parameter ID (PKE):
PKE
High byte
Low byte
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
AK
0
PNU
AK:
Order / response ID (value range 0 … 15)
PNU:
Parameter number (value range 1 … 1599)
The order and response IDs are stored in the AK range. If no parameter processing
is to be performed, the function type "No Order" must be selected.
The PNU range transmits the number of the parameter to be edited.
Parameter values (= data) of type Integer/Unsigned Integer (16 Bit) and Long (32
Bit) can be written and read. The data type is specified in the order ID. In the case
of data set switchable parameters (array), the required data set is given under the
index byte (byte 2).
An Excel
file containing the required information about the parameters as regards
the data type and data set switchability can be made available upon request.
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