Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx - Manual (Page 47)

3–3
Publication 1336 FORCE–5.13 –– September, 1998
The remaining group numbers are used for transferring discrete data:
If you are using this rack size:
Then, these group numbers
are available:
Full 1–7
3/4 1–5 or 3–7
1/2 1–3, 3–5, or 5–7
1/4 1, 3, 5, or 7
Each group number reserves a single 16–bit word in both the input
and output image table of the PLC controller for the assigned rack
number. In the drive, these words are directly linked to internal drive
parameters using source and sink parameters.
Important: If you select RIO with block transfer, the first RIO data
word is reserved for block transfer. Linking to this data
word causes the block transfer feature to be
non–operative.
In the following descriptions, each module group appears to have a
16–bit input and output module installed.
The following figure shows the RIO full rack configuration. Module
group 0 is reserved for block transfer if you select RIO with the
block transfer protocol.
Module Group
0 1 2 3 4 5 6 7
The following figure shows the RIO 3/4 rack configuration. If the
3/4 rack configuration starts at group 0 and you select RIO with the
block transfer protocol, module group 0 is reserved for block
transfer. If the 3/4 rack configuration starts at group 2 and you select
RIO with the block transfer protocol, then module group 2 is
reserved for block transfer.
Starting Group 0
Module Group 0 1 2 3 4 5 6 7
Starting Group 2
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