External Communications Specifications
Section 2-1
2-10
2-4
External Communications Specifications
These specifications are for the Read Write Antenna connected to the
Controller. For more detailed specifications, refer to the V720 Series Read
Write Antenna/Tag Operation Manual (S907).
Item
Specification
Communications method
Electromagnetic induction (with no battery)
Modulation method
ASK mode
Transmission frequency
13.56 MHz
2-5
Tag Memory Map
The specifications provided here are for Tags equipped with I-CODE1 Label
IC Chips (product number: SL1 ICS30 01) made by Philips Semiconductors,
which are the Tags accessed using this system.
The chips contain 64 bytes of memory. The system area, which is used for
functions other than user memory, consists of the uppermost 5 blocks
(blocks 0 to 4). With the OMRON system, the system area can accessed
easily using special commands. Refer to 5-3-6 System Commands and
Responses for details. With the OMRON system then, user memory is
defined as starting from block 5, block 5 is allocated to page 00, and the rest
of the memory is allocated in the way shown below. Each page consists of 4
bytes (= 32 bits). Reading from and writing to memory is performed in page
units. Memory allocations referred to in these specifications are for use with
the OMRON system.
Note Block 4 can be used as user memory if the Distinguished Tag Read/Write
Function, which is based on the family code (FC) and application ID (AI), are
not used. In this case, the corresponding page is defined as FF and user
memory will consist of 12 pages.
OMRON
(page)
SNR
SNR
Write protect
EAS/QUIET
FC/AI or user area
User area
12 pages
(48 bytes)
(-)
(-)
(-)
(-)
FF
00
01
02
03
04
05
06
07
08
09
0A
Philips
(block)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
11 pages
(44 bytes)
