Schneider Electric Processor Adapter - Manual (Page 419)

Run LED Flash Patterns and Error Codes
870 USE 101 10 V.2 419
Run LED Flash
Pattern and Error
Codes, Continued
Number of Blinks Code (hex) Error
7 0300 EXEC not loaded
0301 EXEC Checksum
8 8001 Kernal prom checksum error
8003 unexpected exec return
8005 Flash program / erase error
8007 Watchdog timeout event