PR 5210 Operating Manual Profibus Interface
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6 PROFIBUS INTERFACE
For PR 5210/00 and PR 5210/11 only.
6.1 Profibus interface protocol
The interface works with an 8-byte write window and an 8-byte read window. The profibus exchanges
its data cyclically from each slave. This means: in each cycle, 8 bytes are written and 8 bytes are read
also if the data contents are unchanged.
The profibus protocol ensures the data transport between profibus master and the 2*8-byte data
windows.
The interface protocol is below the profibus level and manages the access to a large variety of data via
the eight byte wide read and write windows.
Profibus interface
Data and functions in PR 5210
•
Weight data
•
Weight status
•
Limit values
•
Calibration
•
Configuration
•
Digital Inputs
•
Digital outputs
•
Analog output
8-byte write
window
8-byte read
window
Interface
protocol
Siemens
Profibus-DP