User's Manual

ACG HF Multi ISO RFID Reader V1.0
ACG Identification Technologies GmbH 60
12.4.2 Error Codes
Following figure shows an overview of all error messages of the reader device.
Error Code Description
‘?’ Unknown command
'C' Collision or CRC/MAC Error
‘F’ General failure
‘I’
Invalid value format, specified block does not match the value
format
‘N’ No tag in the field
'O' Operation mode failure or file not selected
‘R’ Command parameter out of range
'X' Authentication failed
Figure 12-19: Error codes