Technical information
RFU6xx FB for
GX Works 2 (PNDP)
Page 13
3.5.4 Read tag
The
“Read Tag” function is used to read a defined data area of the tag. The selected mode
determines which transponder should be used by the system (see chapter 3.5.1).
The following parameters must be defined before you can start a read request:
Parameter
Declaration
Data
type
Description
ReadTag_
Bank
Input
Word
[Signed]
Selection of the memory bank that should
be used.
0 = Reserved
1 = UII/EPC
2 = TID
3 = User memory
ReadTag_
StartWord
Input
Word
[Signed]
First word (16Bit) that should be read.
ReadTag_
WordCount
Input
Word
[Signed]
Number of words (16Bit) that should be
read.
Valid value range:
[1..32]
ReadTag_
Retry
Input
Word
[Signed]
Number of read attempts to be carried out.
Valid value range:
Lo Nibble (retries on one channel) 16#[0..7]
Hi Nibble (retries on different channels)
16#[0..5]
Example:
Retry = 16#0032 executes 3 changes of the
channel (4 channels) with 2 retries per
channel in each case (3 repetitions), i.e. a
total of 4x3=
12 attempts
.