Command and message frames
2.11 Error messages
ASCII protocol for RF200
Operating Manual, 11/2016, C79000-G8976-C329-04
21
The following error messages are recognized by the RF200 system and entered in the
command acknowledgement in the "status" field.
Table 2- 19 Error codes of the RF200 readers
Flashing of
red LED on
reader
02 0x01 Presence error, possible causes:
• The active command was not carried out completely
• The transponder left the antenna field while the command was
being processed
• Communication problem between reader and transponder
05 0x05 Parameter assignment error, possible causes:
• Unknown command
• Incorrect parameter
• Function not allowed
06 0x06 Air interface faulty
12 0x0C The transponder memory cannot be written, possible cause:
• Hardware fault (memory faulty)
• Write-protected transponder
13 0x0D Error in the specified memory address (access attempted to non-
existent or non-accessible memory areas).
19 0x13 Buffer overflow: Insufficient buffer available on the reader for saving
Serious system fault (hardware fault)
Parameter assignment error: bad parameter in RESET command
Only RESET command is permitted
Previous command is still active
28 0x1C Communications error, possible causes:
• Antenna is already turned off / Antenna is already turned on
• The antenna is turned of, the command cannot be executed on
the air
• external antenna has a short-circuit or is not connected
Incorrect number of characters in frame
Running command canceled by "RESET" command