Rockwell Automation 1791-XXXX Discrete I/O AC and DC Block I/O Input and Output Modules - Manual (Page 68)

Configuring Your Block I/O for PLC
Family Programmable Controllers
Chapter 4
4-11
Figure 4.13
Input/Output Image Table Usage Example for One I/O Group for Series B
16Ćpoint Output Modules (cat. no. 1791Ć0A16, Ć0B16) Complemented by
Series B 16Ćpoint Input Modules (cat. no. 1791Ć16A0, Ć16B0)
110
111
010
011
Starting
I/O Group
0
Block Data
Block Data
Input Image
(used by Input Module)
Output Image
(used by output module)
Type of I/O
I/O Rack Number I/O Group Number
I/O Bit
0 1 0 00
1 = Input
0 = Output
PLCĆ2 Example
10838ĆI
Type of I/O
I/O Rack Number I/O Group Number
I/O Bit
O 1 0 00
I = Input
O = Output
PLCĆ5 Family Example
11 10 7 6 5 4 3 2 1 0 16 15 14 13 12 11 10
11 10
7 6 5 4 3 2 1 0 16 15 14 13 12 11 10 17
7 6 5 4 3 2 1 0 16 15 14 13 12 11 10 17
7 6 5 4 3 2 1 0 16 15 14 13 12 11 10 17
Figure 4.14
I/O Image Table for One Assigned Rack Number with Series B 32Ćpoint
Modules using Complementary I/O
Output Image
Input Image
0
1
2
3
4
5
6
7
0 17
0
1
2
3
4
5
6
7
7 10
1 I/O Rack
1791Ć0B32 1791Ć0B32 1791Ć0B32 1791Ć0B32
PLC
SLC 0 7 8 15
SLC 0 7 8 15
0 17 7 10 PLC
1791Ć32A0 1791Ć32B0 1791Ć32B0 1791Ć32A0
1/4 Rack 1/4 Rack 1/4 Rack 1/4 Rack