IC-KP-B17-AIDA1
Commands
2014-02
87
enhanced read special fixcode (ES)
Command:
Response:
The R/W head attempts to read a special read only code until successful. Only data that
changes is transferred via the interface, i.e. the R/W head transfers data whenever it reads a
new data carrier or whenever it reads a data carrier where there was previously no R/W head
within the detection range.
The status '05h' (read command) is output whenever a data carrier leaves the detection range.
Byte Contents Bit no.
7 6 5 4 3 2 1 0
Byte 0
1)
Telegram length, high byte 0 0 0 0 0 0 0 0
Byte 1
1)
Telegram length, low byte 0 0 0 0 1 0 1 0
Byte 2 Command code (71h) 0 1 1 1 0 0 0 1
Byte 3 WordN um/Ident chann el/Toggle
bit
<FixLen> <Channel> <T>
1)
This byte is only used with the TCP/IP and MODBUS TCP/IP protocol.
Byte Contents Bit no.
7 6 5 4 3 2 1 0
Byte 0
1)
Telegram length, high byte 0 0 0 0 0 0 0 0
Byte 1
1)
Telegram length, low byte 0 0 0 0 1 0 1 1
Byte 2 Command code (71h) 0 1 1 1 0 0 0 1
Byte 3 Reserved/Ident channel/Toggle
bit
- - - - <Channel> <T>
Byte 4 Status <Status>
Byte 5 Reply counter <ReplyCounter>
Byte 6
2)
ID code 00h ... FFh <IDCode>
... ID code 00h ... FFh <IDCode>
Byte N
3)
ID code 00h ... FFh <IDCode>
1)
This byte is only used with the TCP/IP and MODBUS TCP/IP protocol.
2)
The first byte indicates whether an EPC code is shown
■
1 = EPC application
■
0 = 18000-6C (ISO)
3)
N = <FixLen> + 5; Ethernet/IP: N = <FixLen> + 3