User's Manual

Brooks Automation
72 260301 Revision A
7 Operation ATR60LF RFID Reader CAN Bus
7.5 Operation of the SECS Protocol Product Manual
S18F4: WRITE ATTRIBUTE ACKNOWLEDGE (WAA) (E -> H)
This message acknowledges the success or reports the error of the request
to write attribute data to the subsystem indicated in the TARGETID.
S18F4
L,3
<TARGETID>
<SSACK>
L,1
L,s
<STATUS1>
…
<STATUSs>
If the ATTRID of the S18F3 message is unknown, a communication error
(CE) occurs.
S18F5: READ DATA REQUEST (RDR) (H -> E)
The host requests the subsystem indicated in the TARGETID to read
information. DATASEG may be used to indicate a specific section of data to
be read. DATA-LENGTH is used to limit the amount of data for that section.
S18F5 W
L,3
<TARGETID>
<DATASEG>
<DATALENGTH>
If DATASEG and DATALENGTH are both omitted (zero length items), up to
200 bytes of the data area are requested. If only DATALENGTH is omitted,
all data within the indicated section is requested.
S18F6: READ DATA (RD) (E -> H)
This message is used to return requested information from the subsystem
indicated in the TARGETID or to acknowledge the result of the request.
S18F6
L,3
<TARGETID>
<SSACK>
<DATA>
If the TARGETID is unknown, a communication error (CE) occurs.