1/2-slot addressing examples -12, 1/2-slot addressing examples – Rockwell Automation 1747-ASB Remote I/O Adapter User Manual
Page 48
Publication 1747-UM006B-EN-P - June 2003
3-12 Addressing
1/2-Slot Addressing Examples
The following example illustrates how to map modules requiring:
•
two words of input or output image
•
more than two words of input or output image
0
1
2
3
4
5
6
7
8
1746 Slot Numbering
Slot Pair
1
2
3
4
O
I = Input Module
= Output Module
In the example below, the modules require two words of input
or output image.
If you would like to know how you can use the unused input or output
images, refer to the complementary I/O description, found on page 4–5.
In this example, the modules require more than two words of input
or output image.
Input modules must be paired with output modules so their input or output
images do not overlap.
Modules Requiring Two Words
Modules Requiring More Than Two Words
Slot 1
Slot 3
Slot 5
Slot 7
Slot 1
Slot 3
Slot 5
Slot 7
Slot 1
Slot 3
Slot 5
Slot 7
Slot 1
Slot 3
Slot 5
Slot 7
Slot 2
Slot 4
Slot 6
Slot 8
Slot 2
Slot 4
Slot 6
Slot 8
Slot 2
Slot 4
Slot 6
Slot 8
Slot 2
Slot 4
Slot 6
Slot 8
= unused
Slot Pair
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 8
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 8
1
2
3
4
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Slot 7
Slot 7
Slot 1
Slot 1
Slot 1
Slot 1
Slot 3
Slot 3
Slot 3
Slot 3
Slot 5
Slot 5
Slot 5
Slot 5
Slot 7
Slot 7
Slot 7
Slot 7
1
2
3
4
1
2
3
4
Slot 8
Slot 8
Slot 8
Slot 8
Slot 6
Slot 6
Slot 6
Slot 6
Slot 4
Slot 4
Slot 4
Slot 4
Slot 2
Slot 2
Slot 2
Slot 2
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
1
2
3
4
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
1747-ASB Input Image
1747-ASB Output Image
0
7
8
15
0
7
8
15
1747-ASB Input Image
1747-ASB Output Image
0
7
8
15
0
7
8
15
I
I
I
I
O
O
O
O
7
0
10
17
Decimal
Octal
7
0
10
17
Decimal
Octal
7
0
10
17
Decimal
Octal
7
0
10
17
Decimal
Octal
Slot Pair
Slot Pair
Slot Pair