Parameters; View Objects - AUMA AUMATIC AC 01.2 Manual

Actuator controls
AC 01.2/ACExC 01.2 Modbus RTU
8.4.

Parameters

No.
Type
Parameter
Access
Default
Setting value
The present appendix contains notes on the parameterization of the actuator controls
via Modbus RTU as a table (Modbus function codes, offset addresses, parameter
descriptions as well as the read/write access codes).
The parameters listed in the tables below can be read or written using the following
Modbus functions.
Preset Multiple Register (16)
Read Holding Register (03)
Several parameters (View Objects) are read or written per Modbus 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:
View Object number
Data type
BOOL
BS8/16/32/64
DRVCMD4
enum
I8/16/32
MMSS01
OS4/8/16/32/48/64
S10/20/30/40
U8/16/32
Parameter name. Is indicated in the display of actuator controls.
Read and write access
R = Read
W = Write
Default 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
Description
Logical value
Bit string
Process data
Value from the value list
Integer values
Time information
Octet string
String
Unsigned value
Appendix
Data length
4 bytes
2/4/6/8 Bytes
4 bytes
2 bytes
1/2/4 bytes
2 bytes
4/8/16/32/48/64 bytes
10/20/30/40 bytes
1/2/4/ bytes (8/16/32 bits)
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