S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
9-1
RS 485 Repeater
9
This chapter
This chapter describes the RS 485 Repeater in detail.
This includes:
● the purpose of the RS 485 Repeater
● The maximum cable lengths between two RS 485 Repeaters
● functions of the various operating elements and terminals
● information about grounded and nongrounded operation
● technical data and the block diagram
Further information
For further information on the RS 485 Repeater, refer to the chapter "Configuring an MPI or
PROFIBUS DP network" in the CPU Data, Installation manual.
Diagnostic Repeater
Compared to the RS 485 repeater, the Diagnostic Repeater has new characteristics:
Diagnostic function and modeling as the DP slave. For further information, refer to the
Diagnostics Repeater for PROFIBUS DP
manual on the Internet at this address:
http://support.automation.siemens.com/WW/view/de/7915183
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