ThingMagic M5e-Compact - Manual (Page 86)

Application Tag Commands
86 Command Set
Read Tag Single Get EPC and Metadata Response Fields
Examples
An example command requesting AntennaID and Timestamp
Field Length Value
SOH 1 byte 0xFF
Length 1 byte Based on data returned
OpCode 1 byte 0x21
Status 2 bytes Status of command
Options 1 byte As sent in request
Metadata Flags 2 bytes Metadata contained in response
Read Count
1
1 byte Tag EPC/Antenna Read Count
RSSI
1
1 byte Return Signal Strength Indicator
Antenna ID
1
1 byte Antenna ID, 4 MSBs for TX and 4
LSBs for RX
Frequency
1
3 bytes Frequency in kHz
Timestamp
1
4 bytes RTC Timestamp
RFU
1
2 bytes Reserved for Future Use - ThingMagic
Only
Protocol ID 1 byte Protocol ID of tag (always 0x05 for
M5e/M5e-C)
Tag Data Length 2 bytes Size of tag data to follow. Always
0x0000 for Read Tag Single
EPC ID N bytes Tag EPC.
Tag CRC 2 bytes Tag EPC CRC
CRC 2 bytes Message CRC
1 - Conditionally returned depending on the Metadata Fields specified in the request.