Balluff BIS U-4A7-082-01C-07-S4 Betriebsanleitung Seite 156

BIS U-4A7-082- _1C-07-S4
Industrial RFID system - Read/write head
8
System integration (continued)
11. Bulk Read
Read from all data carriers located in front of the antenna.
Read 4 bytes from data carrier address 3 in case 4 data
carriers are found.
Controller
1. Process output buffer
(note sequence):
0x01 Command recognition 0x53
0x02 Start address 0x03
0x03 Start address 0x00
0x04 Number of bytes 0x04
0x05 Number of bytes 0x00
0x06 Data carrier selection
0x07 Max Tags 0xFF
0x00/0x1F Set AV bit
3. Process input buffer:
0x01 Copy number of tags found 0x04
0x02 Copy number of bytes per tag 0x04
0x03 Copy number of bytes per tag 0x00
0x04...0x07 Copy 4 bytes of data of first tag
0x08 Read check byte of first tag
0x09...0x0C Copy 4 bytes of data of second tag
0x0D Read check byte of second tag
0x0E...0x11 Copy 4 bytes of data of third tag
0x12 Read check byte of third tag
0x13...0x16 Copy 4 bytes of data of fourth tag
0x17 Read check byte of fourth tag
Process output buffer:
0x00/0x1F Reset AV bit
72 english
Identification system
2. Process input buffer
(note sequence):
0x00/0x1F Set AA bit
0x01 Enter number of tags found 0x04
0x02 Enter number of bytes per tag 0x04
0x03 Enter number of bytes per tag 0x00
0x04 ...0x17 Enter 20 bytes of data
0x00/0x1F Set AE bit
0x00/0x1F Invert TO bit
4. Process input buffer:
0x00/0x1F Reset AA bit
0x00/0x1F Reset AE bit