
Rockwell Automation Publication 1734-UM013C-EN-P - August 2010
133
Get I/O Diagnostic Status from Modules in Logix Systems
Appendix
A
4.
Refer to the appropriate table, depending on what you’d like to monitor.
This dialog box illustrates values you enter to determine the reason for the
fault on Output 3.
TIP
When entering the Instance value, enter the input/output
point plus 1. In our example, Output Point 3 is Instance 4.
Enter the values from the table in
the appropriate box.
Service
Type
Function
Command (hex)
Response (hex)
Service
Code
Class
ID
Instance
ID
Attribute
ID
Data
Size
Get
Attribute
Single
Reads the cause for the
safety input fault
specified by the Instance
ID (1…8).
0E
3D
01…08
6E
-
0: No error
01: Configuration invalid
02: External test signal error
03:Internal input error
04: Discrepancy error
05: Error in the other dual
channel input