ACR1255U-J1 – Reference Manual info@acs.com.hkVersion V1.07 www.acs.com.hkPage 27 of 77Offset Field Size Value Description6 Checksum 1 - Checksum means the XOR values ofall bytes in the message7 Data N - Data5.6.7. Escape CommandThis command gives access to the extended features of the reader.Command FormatOffset Field Size Value Description0 CmdMessageType 1 6Bh -1 Length 2 - Data length3 Slot 1 00h -4 Seq 1 00h Sequence5 Param 1 00h Parameter6 Checksum 1 - Checksum means the XOR values ofall bytes in the command7 Data N - DataResponse Data FormatOffset Field Size Value Description0 RspMessageType 1 83h -1 Length 2 - Data length3 Slot 1 00h -4 Seq 1 00h Sequence5 Param 1 00h Parameter6 Checksum 1 - Checksum means the XOR values ofall bytes in the response7 Data N - Data5.6.7.1. Escape Command Examples1. Open automatic pollingRequest command: E0 00 00 40 01Response command: E1 00 00 40 01Example:Request: 6B 00 05 00 00 00 CF E0 00 00 40 01Response: 83 00 05 00 00 00 66 E1 00 00 40 01