Application Note 105U-G-PR2 Profibus Master
Issue 1.2 – May 2005
©ELPRO Technologies Pty Ltd
Page 6 of 13
app_105U-G_PR2_1.2.doc
Radio I/O Register
You can see the registers are colour coded and the I/O direction can be checked. This example
shows the usage for register 4320 that it has come into the Gateway from the Fieldbus which we
have previously selected as a read command.
Fieldbus I/O Location
You can select the button
next to the I/O Location box
in the Fieldbus Interface to
show the available registers.
You will note that this
fieldbus mapping is writing
two bits into the first byte
location.
Fieldbus I/O locations are 8
bit and the available locations
are from 0 through to 2047.
There are separate read and
write area’s which range
from 0 to 2047.
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