Rockwell Automation 20-COMM-I Interbus Adapter - Manual (Page 42)

4-10 Configuring the Interbus Scanner
The scanner mapping correlates to SLC addressing as follows:
The mapping in the scanner is set up in bytes. Inputs to the scanner start
at byte #512 and outputs start at byte #0.
PIDD/PODD parameter settings in the adapter determine the length of
I/O data mapped. In the example, each device is configured for 9 words
(144 bits) of inputs and 9 words (144 bits) of outputs, the maximum
allowed for each device.
(USC/4) Output SLC (USC/4) Input SLC
0
1
63
64
65
511
O:x.0(high)
O:x.0(low)
O:x.31(low)
M0:x.0(high)
M0:x.0(low)
M0:x.223(low)
512
513
575
576
1023
I:x.0(high)
I:x.0(low)
I:x.31(low)
M1:x.0(high)
M1:x.0(low)
M1:x.223(low)
Scanner Scanner
20COMM-UM007A-EN-P.book Page 10 Tuesday, January 22, 2002 10:52 AM