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BIS V-6108 PROFINET
Processor Unit
49
english
Command Identifier 42
hex
: Read from EPC
Reads the EPC memory area of a data carrier that was previously selected with the Select
command.
In Single-Tag mode, that is, if only one data carrier is located in front of the active read/write zone
antenna, then the Select command can be disregarded. The
Read from EPC
command will be
automatically executed on the data carrier that is located in front of the antenna.
Note
If the order is executed without the preceding Select when more than one data carrier
is located in front of the antenna, the command will be acknowledged with the
Multiple-Tags status code.
Subaddress
Meaning
Description of Function
00
hex
1st Bit Header
01
hex
Command Identifier 42
hex
: Read from EPC.
…
None
No meaning
Last byte
2nd Bit Header
Valid data is present if the 1st and 2nd bit strings
match.
If execution is successful, the response is passed to the input buffer in the following format:
Subaddress
Meaning
Description of Function
00
hex
1st Bit Header
01
hex
No. of bytes
Number of bytes in the read EPC.
02
hex
EPC Data
Transmission of EPC data that was read from the data
carrier.
…
EPC Data
Transmission of EPC data that was read from the data
carrier.
…
None
No meaning
Last byte
2nd Bit Header
Valid data is present if the 1st and 2nd bit strings
match.
or
Input Buffer: Status Message
Subaddress
Meaning
Description of Function
00
hex
1st Bit Header
01
hex
Status code
Provides information about the status of a query:
…
None
No meaning
Last byte
2nd Bit Header
If the 1st and 2nd bit headers match, the data is valid.
Specific
commands for
BIS VU read/write
heads
7
Device Functions