Configuration/Project Engineering; Cyclical Data Transfer; Configuring; Overview Of Configuration - Siemens SITRANS P DS III Operating Instructions Manual

Configuration/project engineering

9.1

Cyclical data transfer

Cyclical data transmission is used to transfer user data relevant for process automation
between the control or automation system (class 1 master) and the pressure transmitter.
Setting the PROFIBUS address
The PROFIBUS is set to 126 at the factory. You set it at the device or using a
parameterization tool through the bus, e.g.:
● SIMATIC PDM
● HW Config
The new address will take effect either after the first warm start or when the device is
disconnected temporarily from the bus.
9.2

Configuring

9.2.1

Overview of configuration

General
Information on the input and output range as well as the consistency of cyclically transmitted
data is defined in the device master data file (GSD file). Using the configuration packet, it is
checked by the device and declared valid. During projection it must be determined which
data will be transmitted in cyclical operation. This allows the optimization of the data quantity
to be transmitted. In the Siemens control system, the GSD files of all the usual devices are
already available, and they are also available on the Internet and can be imported later.
Reference
http://www.ad.siemens.de/csi_e/gsd
9.2.2

Configuration of user data

The user data which are provided through the PROFIBUS to the control system are based
on the selected target configuration. User data is generated by the function blocks and
assembled in the following order:
SITRANS P DS III/P410 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00053276-08
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