34 Electrical installation
Switching on the bus termination
Bus termination is required to prevent signal reflections from the
bus cable ends. The adapter module is not equipped with internal
bus termination. Therefore, the D-SUB connectors at the first and
last modules of the bus must have built-on termination switched on
as shown in the diagram below.
The adapter module is able to supply power for an active-type
termination circuitry (30 mA max.).
Note:
Further information on PROFIBUS wiring is available from
the publication
PROFIBUS RS 485-IS User and Installation
Guideline
(
, order no. 2.262).
PROFIBUS
device
ON
PROFIBUS
device
OFF
PROFIBUS
device
ON
PROFIBUS
device
OFF
Term.
Term.
Term.
Term.
Summary of Contents for FPBA-01 PROFIBUS DP
Page 4: ......
Page 10: ...10 Table of contents Document library on the Internet 195 ...
Page 20: ...20 About the manual ...
Page 26: ...26 Overview of the PROFIBUS network and the FPBA 01 module ...
Page 30: ...30 Mechanical installation ...
Page 91: ...Start up 91 8 Click Properties Network Settings and set baud rate ...
Page 98: ...98 Start up ...
Page 118: ...118 Communication profiles ...
Page 178: ...178 Diagnostics ...
Page 182: ...182 Technical data ...