Network Router User Manual

GFK-1535A 3-
1
Operation
This section explains how the NIU interacts with the modules in its station, how it
stores data, and how it exchanges data on the bus.
NIU data memories
Scanning inputs and outputs in the I/O Station
Data transfer between the Genius NIU and the bus
Genius bus scan time
Genius Hand-held Monitor Use
The Network Interface Unit does not have a Hand-held Monitor connection. A
Genius Hand-held Monitor cannot be used to configure, monitor I/O, or force and
unforce I/O.
If there is a Hand-held Monitor elsewhere on the bus, it will display the presence of
the NIU on the bus as an “unsupported device”.
Chapter
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