Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 31)

2–11 How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
1794ĆOB8EP - 8Ćpoint Discrete Protected 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
Overload Fault Bits
Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size
Oct. Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words
F7 F6 F5 F4 F3 F2 F1 F0 Reserved (see note) Read 1
Not used FR O7 O6 O5 O4 O3 O2 O1 O0 Write 1
Reserved Write 2
Where:
F = overload fault bits - 1 = fault present; 0 = no fault
Oj = output data (O0 corresponds to output 0, O1 corresponds to output 2, etc.)
FR = fault reset bit - 1 = reset output; 0 = no change.
Note: The unused lower byte in read word 1 floats during operation. Do not use this byte for fault status.
Using the Fault Reset Button When you press the manual reset button:
1. the fault indicator for the faulted output turns off for about 1.2s (the faulted output will not attempt to turn on during this delay)
2. after the 1.2s delay, the faulted output attempts to turn on
3. if the external condition causing the fault is corrected, the output remains on, the fault indicator is off, and the status indicator is on
16Ćpoint Digital Input/Output Module Image Table Mapping -
1794ĆIB10XOB6
Module Image
Inputs Not used
Outputs Not used
I/O Image
Not used
Input Size
Output Size
0 or 1 Word
1 or 2 Words Read
Write
Memory Map of 16-Point Digital Input/Output Module Image
Table – 1794-IB10XOB6
Dec. Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size
Oct. Bits 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words
Not used I9 I8 I7 I6 I5 I4 I3 I2 I1 I0 Read word 1
Not used Read word 2
Not used O5 O4 O3 O2 O1 O0 Write word 1
Where I = Input Channel
O = Output Channel