Rockwell Automation 1785-ENET USER MANUAL PLC-5 ETHERNET INTERFACE - Manual (Page 49)

1785-6.5.19 November 1998
Appendix
D
Status LED Error Codes
Interpreting LED Error Codes When the status LED blinks red, it signals that a hardware or software
fault has been detected and it reports that error via a code. This code
is a two-digit fault code signalled by a flash sequence. First, the LED
begins the sequence with ten rapid flashes. Then the LED signals the
first digit of the code by a number of slow flashes. Approximately
two seconds after the LED displays the first digit, the LED displays
the second digit. This sequence repeats itself until the module is either
reset or replaced.
Code Description
01 General 68000 test failure
02 Bus error
03 Address error
04 Illegal instruction
05 Divide by zero
06 CHK instruction
07 TRAPV instruction
08 Privileged instruction
09 Trace trap
10 Line 1010 instruction
11 Line 1111 instruction
12 Hardware breakpoint
13 Coprocessor violation
14 Uninitialized interrupt
15 Format error
16 Autovector interrupts
24 Spurious interrupt
25 TRAP in instruction
26 Unassigned user
27 Unassigned reserved
31 OS area checksum not valid
32 Static RAM self-test failed
33 Jump table wrong