Burkert Type 8640 - Manual (Page 24)

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9. CONFIGURATION AND PARAMETER
SETTINGS FOR PROFIBUS DP
The purpose of the bus system is to enable rapid connection of the decentralized periphery (valve terminal) with
the central master (control). As well as input and output data, parameter, configuration and diagnostic data is also
transmitted.
Many PROFIBUS masters (controls) need a configuration program which lays down the network structure. These
programs require the device base data file (GSD file).
9.1. Representation of the PROFIBUS-DP
communication process
Start
Read diagnosis
Diagnosis OK ?
Write parameter
Write configuration
Read diagnosis
Error ?
Cyclical data exchange
No
No
Yes
Yes
The diagnostics routine is requested for as long as is nec-
essary until the component responds and is not blocked by
another master.
Master transmits parameterization data
- bus-specific data (e.g. signal monitoring)
- User-specific parameterization data (as required) errors are
displayed in the diagnosis.
Master transmits required configuration
Required configuration is compared to actual configuration
in slave
Errors are displayed in the diagnosis.
Master reads diagnosis.
If there is a parameterisation or configuration error, the com-
munication is restarted from the beginning.
If the slave is in data exchange mode then a cyclical
exchange of data takes place.
Figure 12: Simplified representation of the PROFIBUS-DP communication process
Configurationandparameter
settingsforPROFIBUSDP
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Type 8640