User's Manual

5 OPERATION

Transponder Reader LF60 Gen2 (SECS1-Protocol), Release 0.2

S18F7: WRITE DATA REQUEST (WAR) (host -> reader, reply)

This message requests to write data to the subsystem component

indicated in TARGETID. DATASEG may be used to indicate a

specific section of the data area to be written or overwritten.

S18F7 W

L,4

1. <TARGETID>

2. <DATASEG>

3. <DATALENGTH>

4. <DATA>

If DATASEG and DATALENGTH are both omitted (zero length

items), then all data 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 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.

S18F8: WRITE DATA ACKNOWLEDGE (WDA) (reader -> host)

This message acknowledges the success or failure of writing data to

the subsystem indicated in TARGETID.

S18F8

L,3

1. <TARGETID>

2. <SSACK>

3. L,1

L,s

1. <STATUS

…

s. <STATUS

If the TARGETID is unknown, a communication error (CE) occurs.