Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 27)

2–7 How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
1794ĆOB8 - 8Ćpoint Discrete Output Module Image Table Mapping
Module Image
Outputs
Input Size
Output Size
0 or 1 Word
1 or 2 Words
I/O Image
Not used
Not used
Read
Write
Not used
1794ĆOB8 Memory Map
DecimalBit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size
Octal. Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read Words
Not used Read Word 1
Not used O7 O6 O5 O4 O3 O2 O1 O0 Write Word 1
Not used Write Word 2
Where O = Output value (O0 corresponds to output 0, O1 corresponds to output 1, etc.)
1794ĆOB16 - 16Ćpoint Discrete Output Module Image Table
Mapping
Module Image
Outputs
Input Size
Output Size
0 or 1 Word
1 or 2 Words
I/O Image
Not used
Not used
Read
Write
1794ĆOB16 Memory Map
Dec. Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size
Oct. Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words
Not used Read Word 1
O15 O14 O13 O12 O11 O10 O9 O8 O7 O6 O5 O4 O3 O2 O1 O0 Write Word 1
Not used Write Word 2
Where O = Output value (O0 corresponds to output 0, O1 corresponds to output 1, etc.)