176
SECTIO
N
8
Sample Pro
g
ramming
RFID System
User's Manual
SECTION 8
Appendices
Read, Communications Specification: FIFO Trigger
• Outline
This example shows how to read the memory of an RF Tag that is present in the interrogation zone for
Antenna 1.
• Unit Settings Example
Item
Setting
Setting location
Unit number
00
Unit’s front panel unit number switches: 00
Operating mode
Run Mode
Unit’s front panel test switch: OFF
System Settings
UID Addition Setting: Disabled
Test Mode Disable Setting: Enabled
Setting for Write Verification: Verification
RF Tag Communications Speed Setting:
Normal Mode
Set in the Special I/O Unit words in DM Area.
Auto Wait Time Setting
Infinite
Command
Read
Set in the Special I/O Unit Area.
Communications specification
FIFO trigger
Read data storage order
Leftmost
→
Rightmost
Read Start address
0010 hex
Number of bytes to read
10 bytes
Read data storage destination D1000 to D1004
0010 0
1
0011 0
2
0012 0
3
0013 0
4
0014 0
5
0015 0
6
0016 0
7
0017 0
8
001
8
0
9
0019 0
A
D1000
01 02
D1001
03 04
D1002
05 06
D1003
07 0
8
D1004
09 0A
Antenna
RF Tag
An RF Tag that has completed
comm
u
nications and for
w
hich
operations are prohi
b
ited.
RF Tag
→
: Read data storage order
Interrogation zone
CS-series CPU Unit memory
Address
(hex)
Bit 7
Bit 0
Bit 00
Bit 15
Read command
exec
u
ted
W
hen the Command Exec
u
tion Bit is t
u
rned
O
N
, the Unit comm
u
nicates
w
ith an RF Tag in
the Antenna
'
s interrogation zone. If there is
no RF Tag, an RF Tag missing error
w
ill
b
e
ret
u
rned in the response.
Summary of Contents for CJ1W-V680C11
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