User's Manual

5 OPERATION
78
HF5x Transponder Reader (SECS1-Protocol), Release 1.4
S18F69: WRITE DATA REQUEST UID (WARU) (host -> reader,
reply)
This message requests to write data to the subsystem component
indicated in TARGETID to the transponder indicated in UID.
DATASEG may be used to indicate a specific section of the data area
to be written or overwritten.
S18F69 W
L,4
1. <TARGETID>
2. <UID>
3. <DATASEG>
4. <DATALENGTH>
5. <DATA>
If DATASEG and DATALENGTH are both omitted (zero length
items), then up to 120 bytes in the data area are to be overwritten. If
only DATALENGTH is omitted or if DATALENGTH has a value of
zero, then all data within the indicated section are to be written.
If DATASEG is omitted (zero length items) the value of
DATALENGTH set the length of data that shall be written. If the
length of the data that shall be written is longer than the value of
DATALENGTH, a communication error (CE) occurs.
S18F70: WRITE DATA ACKNOWLEDGE (WDA) (reader -> host)
This message acknowledges the success or failure of writing data to
the subsystem indicated in TARGETID.
S18F70
L,3
1. <TARGETID>
2. <SSACK>
3. L,1
L,s
1. <STATUS
1
>
…
s. <STATUS
s
>
If the TARGETID is unknown, a communication error (CE) occurs.