Fault_no_tags_found – (400h), Cause, Solution – ThingMagic Micro Hardware User Manual
Page 79: Fault_no_protocol_defined – 401h, Fault_invalid_protocol_specified – 402h
Protocol Faults
A D I V I S I O N O F T R I M B L E
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Appendix A: Error Messages
FAULT_NO_TAGS_FOUND – (400h)
Cause
A command was received (such as like read, write, or lock) but the operation failed. There
are many reasons that can cause this error to occur.
Here is a list of possible reasons that could be causing this error:
No tag in the RF field
Read/write power too low
Antenna not connected
Tag is weak or dead
Solution
Make sure there is a good tag in the field and all parameters are set up correctly. The best
way to check this is to try few tags of the same type to rule out a weak tag. If none
passed, then it could be SW configuration such as protocol value, antenna, and so forth,
or a placement configuration like a tag location.
FAULT_NO_PROTOCOL_DEFINED – 401h
Cause
A command was received to perform a protocol command but no protocol was initially set.
The reader powers up with no protocols set.
Solution
A protocol must be set before the reader can begin RF operations.
FAULT_INVALID_PROTOCOL_SPECIFIED – 402h
Cause
The protocol value was set to a protocol that is not supported with the current version of
SW.