Remote i/o adapter faults (status file 2), Diagnostics methods chapter 7 – Rockwell Automation 1775-S5_SR5,D17756.5.5 User Manual PLC-3 FAMILY I/0 User Manual
Page 119

Diagnostics Methods
Chapter 7
7-7
Figure 7.4 shows the word organization for status file 2.
Figure 7.4
Remote I/O Device Fault Status Bits (Status File 2)
17
I/O Rack Starting
I/O group
0
0
2
4
6
1
0
2
4
6
2
0
2
4
6
3
0
2
4
6
Word 0
16 15 14 13
12 11 10 07 06 05 04
03 02 01 00
To find the word that stores the fault bits for an I/O adapter:
Rack # in decimal = word in file 2 containing fault bits for the adapter.
4
The remainder tells you the bit numbers within the word:
0 - bits 00 to 03
1 - bits 04 to 07
2 - bits 10 to 13
3 - bits 14 to 17
For example, the fault bits for I/O rack 10 are in word 2 (S2:2), bits 10 to 13.
15180
Important: The processor does not create status file 2 at power-up. You
must create it in memory by using the create command.
Remote I/O Adapter Faults
(Status File 2)
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