Rockwell Automation Logix5000 Controllers Major, Minor, and I/O Faults Programming Manual - Manual (Page 40)

Chapter 3 I/O fault codes
• A yellow warning symbol appears on the module in the I/O Configuration
tree of the Logix Designer application.
• A module fault code and description appear in the Connection tab of the
Module Properties dialog box.
Depending where the fault code is indicated, the code format contains either the
full Hexadecimal number (for example, 16#000A) or the last characters of the
code (for example, #000A).
The following table lists common I/O fault codes and a corresponding description
and recovery method when applicable. Each code is listed by the last characters of
the full Hexadecimal number (that is, #
XXXX).
Code Interpretation
#0001 A connection to a module failed.
#0002 Possible causes include the following.
•
There are not enough connections available either for the controller or for the communication module being used to connect through.
Check the connection use of the controller or communication module. If all of the connections are used, try to free some of the used connections or add another
module to route the errant connection through.
• The I/O memory limits of the controller are exceeded.
Check the I/O memory available and make program or tag changes if needed.
• The I/O module targeted does not have enough connections available.
Check the number of controllers making a connection to this I/O module and verify that the number of connections is within the limits of the I/O module.
I/O fault codes
40 Rockwell Automation Publication 1756-PM014G-EN-P – October 2014