FANUC Robotics America GFK-1535A - Manual (Page 58)

4-10 VersaMax™ System Genius® Network Interface Unit User's Manual – November 2000 GFK-1535A
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Autoconfiguration of the Genius NIU and I/O Station
Autoconfiguration is done by the NIU itself. It provides a default configuration for
the NIU and I/O Station and does not require the use of a programmer. I/O modules
that have software-configurable features always use their default settings when
autoconfigured.
When autoconfiguration is enabled and no previous autoconfiguration exists, at
powerup the NIU automatically reads the default configuration of the modules
installed in the system.
Once this autoconfiguration is complete as described below, the NIU retains this
configuration until it is either cleared or powered up with I/O modules added to the
existing configuration.
Autoconfiguration Sequence
Each module is considered to occupy a “slot”. The position adjacent to the NIU is
slot #1. Booster power supplies do not count as occupying slots.
NIU
1
Booster Power
Supply
2 3 4 5
Autoconfiguration starts at slot 1 of rack 0 (the main rack) and continues in the
same order the modules occupy in the I/O Station.
Autoconfiguration stops at the first empty slot or faulted module. For example, if
there are modules in slots 1, 2, 3, 5 and 6 but slot 4 is empty, the modules in slots 5
and 6 are not autoconfigured. The NIU reports Extra I/O Module faults.
For the autoconfiguration process to work as expected, any additional power
supplies in the I/O Station must be powered up at exactly the same time or before
the main power supply.