| The BAILEY driver uses the NCIU-02 or
NCIU-03 to gain access to the Bailey Net 90 network. With the Infi
90, the NCIU-02 and NCIU-03 have been replaced with the ICI-01,
which is functionally equivalent to the older NCIU-03. The ICI-01
refers to a combination of the ICT-01 module (the serial comms
processor) and an NIS-01 module (equivalent to a network card to
access the internal Infi-net loop). The BAILEY driver communicates
to the ICT-01 module and has been successfully used a number of
times.
The BAILEY driver has the following addressing capabilties:
- 10000 Points per CIU (1 to 10000)
- 8 Rings (0 to 7, can use new '[bailey]ring =' to map to numbers
0 to 255)
- 256 nodes per ring ( 0 to 255)
- 32 modules per node (0 to 31)
- 16384 blocks per module (0 to 16383)
If you are using two ICT modules to improve performance on the
system, be careful not to interlace tags in each ICT (e.g. don't
have ICT1 talking to blocks 555, 559 and 580, while ICT2 is talking
to 556, 560 and 577). While it won't actually hurt it, it may
affect the scan time of the processor, depending on how badly you
interlace everything. As a recommendation, only use more than one
ICT if you need to access more than 10000 indexes (not necessarily
the same thing as tags) from the system, or provide redundancy.
Also note that Citect prefers to have similar tag types grouped
into indexes (e.g. all the RCM reads in index range say 5000-5999),
so bear this in mind when trying to split things across two or more
modules.
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