8.4.
Parameters
The present appendix contains notes on the parametrisation of actuator controls via
Profibus DP-V1 as a table (with read/write access codes).
Several parameters (View Objects) are read or written for each DP-V1 request. The
data lengths indicated in the tables have to be considered accordingly.
View Objects
View Objects group several parameters enabling easy write access to the grouped
parameters. The bus load is reduced as the parameters do no longer have to be
read out individually.
Explanations to the table:
No.
View Object number (corresponds to Profibus DP-V1 index). Profibus DP-V1 slot is
always 254.
Type
Data length
Description
Data type
4 bytes
Logical value
BOOL
2/4/6/8 bytes
Bit string
BS8/16/32/64
4 bytes
Process data
DRVCMD4
2 bytes
Value from the value list
enum
1/2/4 bytes
Integer values
I8/16/32
2 bytes
Time information
MMSS01
4/8/16/32/48/64 bytes
Octet string
OS4/8/16/32/48/64
10/20/30/40 bytes
Character string
S10/20/30/40
1/2/4/ bytes (8/16/32 bits)
Unsigned value
U8/16/32
Parameters
Parameter name. Is indicated in the display of actuator controls.
Access
Read and write access
R = Read
W = Write
Default
Default value
Setting value
Permissible, settable value or setting range. Depending on the data type, scale factor
and unit are also indicated in square brackets. Example:
Min = 0 [0.1 s]
Max = 50 [0.1 s]
Corresponds to a setting range between 0.1 and 5.0 seconds
63
Actuator controls
AC(V) 01.2/AC(V)ExC 01.2 Profibus DP
Appendix
Содержание AC(V) 01.2
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