ThingMagic M5e-Compact - Manual (Page 99)

Application Tag Commands
Command Set 99
Write Tag EPC Command Fields
The reader sends a Fault Code / ACK response back to the host.
An example of Write Tag EPC command sequence of events and format is shown next:
1. Starts a timer on the reader.
2. Wakes the tag.
3. Programs the tag with the EPC ID
4. Reads the tag and verifies if the write succeeded.
Note
The verify operation uses the same power level as the write operation. It
does not change to the Read power level.
5. Sends back an ACK if OK or a fault code for timeout or other faults.
Field Value Description
Length [1 byte] Number of bytes in the command following the OpCode.
OpCode 0x23 Write Tag EPC
Time Out [2 bytes] Command timeout in milliseconds.
Select Options [1 byte] The Options value of the Tag Singulation Fields
Access Password [4 bytes] The Access Password of the tags expected to be inventoried for the
embedded command, if they are locked. If the tags are not locked
specify 0x00000000.
Note: If operating on locked tags, only tags which meet the Select
criteria and matching passwords will get a successful
execution of the embedded command.
Note: If Select Options=0x00 this field should be omitted.
Tag Singulation Fields The remaining, fields depending on the value of Select Options.
Tag EPC ID [M bytes] Up to 496-bit ( depending on EPC Length parameter setting in
Set Reader Configuration(9Ah) ) tag ID to write to the Tag
FF 00 23 00 00 ?? ??
SOH Length OpCod
e
Status CRC