Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx - Manual (Page 46)

3–2
Publication 1336 FORCE–5.13 –– September, 1998
The following table identifies which parameters are defined when
you select RIO communications.
Is Channel A
defined for
RIO?
Is Channel B
defined for
RIO?
Then, these parameters are
defined:
And these parameters are not
defined:
Yes No
322–329, 351–358, 425, 426,
427
➀
330–337, 359–366, 427,
430–431
No Yes
330–337, 359–366, 430, 431,
432
➁
322–329, 351–358, 425–427
Yes Yes
322–337, 351–366, 425, 426,
427
➂
None
No No None 322–337, 351–366, 425–431
➀
Parameter 427 is defined only if channel A is set up for RIO
scanner mode.
➁
Parameter 432 is defined only if channel B is set up for RIO
scanner mode.
➂
Parameter 427 is defined only if the redundant DIP switch is set
and both channels have the same RIO adapter protocol and the same
rack size.
The drive requires that some data be continuously updated. This
data is transferred using the PLC controller’s I/O image table. This
data is transferred from the drive to the PLC Communications
Adapter Board every 1.5 milliseconds. The following table shows
the timing information for discrete data transfer from the PLC
Communications Adapter Board to the drive:
If you are transferring data at
this baud rate:
The fastest the transfer can
occur is:
57.6K 7.2 milliseconds
115.2K 3.6 milliseconds
230.4K 1.8 milliseconds
When you use discrete data transfer, you need to specify a rack size.
With the PLC Communications Adapter Board, you can specify a 1/4
rack, a 1/2 rack, a 3/4 rack, or a full rack. The first group number
associated with a rack is reserved for the block transfer function if it
is selected with the RIO protocol (you should select the RIO protocol
through DIP switches set up on the PLC Communications Adapter
Board).
Transferring Data Using
Discrete Data Transfer