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A6V10881143_en--_c
Siemens
2019-04-25
Smart Infrastructure
Commissioning
Parameterization
The following parameters must be checked or set prior to commissioning:
Parameter
Range
Description
Factory setting
Opening
direction
CW (R) / CCW (L)
Opening direction of rotary actuator
CW (R)
Commissioning workflow 1: Full or partial configuration by tool
When using the AST20 handheld tool, all bus and actuator parameters can be set.
●
Connect the AST20 to the rotary actuator and navigate to the bus configuration menu
●
Set bus parameters as desired
●
Optionally make changes on actuator parameters.
Note
With AST20, all parameters can be set using the mass configuration function. The bus parameters are included in the
mass configuration function. It can be selected that the address is automatically incremented with each programmed
actuator.
Commissioning workflow 2: Configuration over bus (fully or partially)
The devices can be configured over bus if the pre-commissioning settings allow for a con-
nection between the Modbus master / programming tool and peripheral devices (i.e. non-
conflicting addresses and matching baudrate / transmission format).
●
Full configuration over bus: If the address is unique per segment when powered up, the
device can be accessed by the Modbus master (or programming tool) and the address
and other parameters can then be set to the definitive values.
●
Partial configuration over bus: If the address is not unique per segment when powered up,
each device must get a non-conflicting address before connecting it to the bus (e.g. using
the push-button addressing method). After addressing all devices, the remaining configu-
ration can be done over the bus using the default settings for baudrate (auto-baud) and
transmission mode for the Modbus master.
●
Overwriting the bus configuration over bus uses a timeout. If „1 = Load“ is not written into
Reg 768 within 30 seconds, all values are discarded.
Example: Table shows bus configuration registers before and after changing them over bus.
Reg.
Name
Pre-commissioning
New value (ex.)
764
MacAddress
46
12
765
Baudrate
0 = auto
1 = 9600
766
Transmission Mode
0 = 1-8-E-1
3 = 1-8-N-2
767
Termination
0 = Off
0 = Off
768
BusConfigCmd
0 = Ready
1 = Load
