SATO CL4NX Programming Reference Manual page 355

<RU>,01 return sequence (for a tag having the UID of E0123456789ABCDE)
<RU>,01 *1
Return based on [DC2]PK
<RK>2,D13,4912345678904
Write command
[DC2]PK
*1. Most common commands such as <A>, <Z> are not described in the above diagram.
*2. The content of the return UID is an example. The actual value varies depending on the tag.
[Supplemental explanation]
The printer operation corresponding to the <RK> command is performed in the order of writing the data to the tag, and
then performing UID reading.
Host
347
Printer
The settings of return based on [DC2]PK are retained
Enabled until power is turned OFF
Acquire UID immediately after successful write, and
store it in the memory with the success status.
Return the write status (write success) and UID data
[STX]25,1,N,UI:E0123456789ABCDE[CR][LF][ETX]
*2