ZK-RFID102 UHF RFID Reader User's Manual V2.0
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3*100ms~255*100ms). In various environments, the actual inventory scan time may be 0~75ms longer than the
InventoryScanTime defined.
If the inventory scan time establishes excessively short, possibly will inventory no tag appear in inventory
scan time.
Command:
Len
Adr
Cmd
Data[]
CRC-16
AdrTID
LenTID
0xXX
0xXX
0x01
0xXX
0xXX
LSB
MSB
Parameter Connect:
AdrTID:
One byte. It specifies the starting word address for the TID memory read. For example,
AdrTID
=
00h specifies the first 16-bit memory word,
AdrTID
= 01h specifies the second 16-bit memory word, etc.
LenTID:
One byte. It specifies the number of 16-bit words to be read. The value is less then 16, otherwise, it
returns the parameters error message.
Notes: It will get tags’ EPC values when the AdrTID and LenTID vacant. Otherwise, get tags’ TID values.
TID-inventory function is only available for reader with firmware version V2.36 and above.
Respond:
Len
Adr
reCmd
Status
Data[]
CRC-16
Num
EPC ID
0xXX
0xXX
0x01
0xXX
0xXX
EPC-1, EPC-2, EPC-3…
LSB
MSB
Parameter Connect:
Status Table:
Status
Connect
0x01
Command over, and return inventoried tag’s EPC (TID).
0x02
The reader does not get all
G2
tags’ EPC/TID before user-defined Inventory-ScanTime
overflows. Command force quit, and returns inventoried tags’ EPC (TID).
0x03
The reader executes an
Inventory
command and gets many
G2
tags’ EPC (TID). Data
can not be completed within in a message, and then send in multiple.
0x04
The reader executes an
Inventory
command and gets
G2
tags’ EPC (TID) too much,
more than the storage capacity of reader, and returns inventoried tags’ EPC (TID).
Num
: The number of tag detected.
EPC ID
: Inventoried tag’s EPC (TID) data,
EPC-1
is the first tag
EPC Len
+
EPC
Data
(
TID Len
+
TID
Data
), etc. The most significant word (EPC C1 G2 data in word units) of EPC is transmitted first and the most
significant byte of word is transmitted first.
EPC
(
TID
)
Len
is one byte.
8.2.2 Read Data
The command is used to read part or all of a Tag’s Password, EPC, TID, or User memory. To the word as a
unit, start to read data from the designated address.