ACR3901U-S1 – Reference Manual
Version 1.09
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Page 96 of 96
Appendix A. Error Codes
The following table summarizes all the error codes for ACR3901U-S1:
Error Code
Description
01h
Invalid checksum
02h
Invalid data length
03h
Invalid command format
04h
Invalid command/Unknown command ID
05h
Card operation error
06h
Authentication is required/Authentication error
07h
Low battery
08h
Authentication failed
09h
Exceeded max. authentication retry failure
0Ah
T1 Card operation error
Table 12
: Error Code
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