Rockwell Automation 999 IMC S Class Compact Motion Controller (Cat. No. 4100-999-122) - Manual (Page 102)

5-22 Understanding IMC-S/23x Setups
Publication 999-122 - January 1997
RIO Baud Rate
Remote I/O links with Allen-Bradley PLCs operate at one of three data
rates (expressed in kilobits per second). These are 57.6KB, 115.2KB,
and 230.4KB. Toggle to the rate which matches the RIO link to which
you are connecting and press ENTER.
RIO Rack Size
The IMC-S/23x can be configured to occupy 1/4, 1/2, 3/4, or a full rack
on the RIO link. Toggle to the desired rack size and press ENTER.
The Rack Size parameter–along with the Rack Address and Starting
Group–determine where in I/O space the IMC-S/23x "appears" to the
RIO scanner, as shown in the table below.
The rack size also determines the number of user-defined discrete bits,
as shown in the table below.
In general, set the rack size to the smallest value which provides enough
user-defined discrete I/O for your application.
IMC-S/23x Remote I/O Adapter Addressing
Type of Transfer I/O Group
Block
Discrete
Discrete
Discrete
Discrete
Discrete
Discrete
Discrete 0 2 4 6
1 3 5 7
0 2 4
1 3 5
2 4 6
3 5 7
0 2
1 3
2 4
3 5
4 6
5 7
0
1
2
3
4
5
6
7
Starting Group 0 2 4 6 0 2 4 0 2 0
Rack Size 1/4 1/2 3/4 Full
IMC-S/23x Remote I/O Adapter
Number of User-Defined Discrete I/O Bits
Rack Width Inputs Outputs
1/4
1/2
3/4
Full
4
36
68
100
4
36
68
100