Rockwell Automation AutoMax R-Net Processor Module - Manual (Page 29)

5Ć1
5.0 DIAGNOSTICS AND
TROUBLESHOOTING
This section describes how to troubleshoot the AutoMax RĆNet
Processor module. If the problem cannot be corrected using the
procedures below, the unit is not userĆserviceable.
DANGER
ONLY QUALIFIED ELECTRICAL PERSONNEL FAMILIAR WITH THE
CONSTRUCTION AND OPERATION OF THIS EQUIPMENT AND THE HAZARDS
INVOLVED SHOULD INSTALL, ADJUST, OPERATE, AND/OR SERVICE THIS
EQUIPMENT. READ AND UNDERSTAND THIS MANUAL IN ITS ENTIRETY
BEFORE PROCEEDING. FAILURE TO OBSERVE THIS PRECAUTION COULD
RESULT IN SEVERE BODILY INJURY OR LOSS OF LIFE.
5.1 Bus Error
Problem: Error code 31 or 56Ć58 appears on a Processor module's
LED display. These errors indicate the system has a problem
accessing the module through the backplane bus. Possible causes
of a bus error are a missing module, a module in the wrong slot, or a
malfunctioning module.
Use the following procedure to isolate a bus error:
Step 1.
Verify that the module is in the correct slot.
Verify that the slot number being referenced in the application tasks
agrees with the slot number defined during configuration.
Step 2.
Verify that the hardware is working correctly.
One at a time, swap out the AutoMax RĆNet Processor module, the
Processor module(s), and the backplane. After each swap, determine
if the problem has been corrected before swapping out the next item.
5.2 Invalid Node Number
Problem: The red LEDs on the module faceplate display error code 4
at powerĆup. This error indicates an invalid node number. This will
only occur if the node number on the rotary switches is greater than
250.
Use the following procedure to clear the error code:
Step 1.
Enter the correct node number on the rotary switches.
Step 2. Cycle power to the rack.