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FichtelBahn
9.2 When is a bus termination needed?
The BiDiBus is a RS485 two wire connection which has been especially developed for
high speed data transfer over long distances. This type of connection is used in an
increasing number of industrial installations. Due to its properties high data rates can
be achieved over a length of up to 200 m.
Master
To guarantee an error free communication at high data rates it is necessary to termi-
nate the BiDiBus to avoid reflexions.
The terminating resistor of 120 Ohms is part of every BiDiB module and is activated by
fitting the corresponding jumper.
10. Firmware update
10.1 Functional update
To keep the module compatible with new developments it is possible to conduct a
firmware update through the BiDiBus. Start the Tool "BiDiB-Wizard" and double click
on the entry „ReadyRS-M"
in the right window.
Manual ReadyRS V1.0
Manual Version 1.0
(1.)
in the tree view. The node will be loaded and displayed
Page 29
R
120R
TERM
BiDiB-Knoten
Click on the button "Update
firmware" (2.). In the new
window choose the firmware
zip file
(3.)
which can be
loaded from the FichtelBahn
website. Tick the check box
(4.)
for the desired firmware
and proceed by clicking
"Start" (5.).
© 2022 FichtelBahn®
Technical changes and errors reserved
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