GE PACSystems RX7i - Page 106

Chapter 2. CPU Features & Specifications
GFK-2222AD April 2018 95
EOK LED Operation
The EOK LED indicates whether the Ethernet interface is able to perform normal operation. This LED is
on for normal operation and blinks for all other operations. When a hardware or unrecoverable runtime
failure occurs, the EOK LED blinks a two-digit error code identifying the failure. The LED first blinks to
indicate the most significant error digit, then after a brief pause blinks again to indicate the least
significant error digit. After a long pause the error code display repeats.
EOK LED Blink Codes for Ethernet Hardware Failures
Blink Code
Description
0x12
Undefined or Unexpected Interrupt.
0x13
Timer failure during power up diagnostics.
0x14
DMA failure during power up diagnostics.
0x21
RAM failure during power up diagnostics.
0x22
Stack error during power up diagnostics.
0x23
Shared Memory Interface error during power up diagnostics.
0x24
Firmware CRC (cyclic redundancy check) error during power up or Factory Test.
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0x25
Run time exception
0x31
Undefined instruction or divide by zero
0x32
Software interrupt
0x33
Instruction pre-fetch abort
0x34
Data abort
0x35
Unexpected Runtime IRQ
0x36
Unexpected Runtime FIQ (fast interrupt request)
0x37
Reserved Exception or branch through zero
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CRC error or software error during normal operation causes Ethernet restart.