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２０１１年５月２０日　金曜日　午後２時５７分
SECTION 8
Appendices
Read, Communications Specification: Trigger, Data Transfer:
Intelligent I/O Instructions
• Outline
This example shows how to read the memory of an ID Tag that is present in the communications area
for Antenna 1.
When the Command
Execution Bit is turned ON,
the Unit will read the memory
of an ID Tag in the
communications area.
ID Tag
Communications
area
Antenna 1
Address
(hex)
0010
0011
0012
0013
0014
0015
0016
0017
0018
0019
ID Tag
Bit 7
CS-series CPU Unit memory
Bit 0
0
0
0
0
0
0
0
0
0
0
1
2
3
4
5
6
7
8
9
A
Read command
executed
D1000
D1001
D1002
D1003
D1004
D1005
D1006
D1007
D1008
Bit 15
××
××
××
××
01
03
05
07
09
Bit 00
××
××
××
××
02
04
06
08
0A
UID
Read data
→: Read data storage order
Unit Settings
SECTION 8
Item
Setting
Sample Programming
00
Unit's front panel unit number switches: 00
Operating mode
Run Mode
Unit's front panel test switch: OFF
System Settings
Set in the Special I/O Unit words in DM Area.
UID Addition Setting: Disabled
Test Mode Disable Setting: Enabled
Setting for Write Verification: Verification
Tag Communications Speed Setting:
Normal Mode
Data Transfer Setting: Intelligent I/O
Instructions
Auto Wait Time Setting
Infinite
Command
Read
Set in the Special I/O Unit Area.
Communications specification Trigger
Read data storage order
Leftmost → Rightmost
Read start address
0020 hex
Number of bytes to read
512 bytes
Read data storage destination D20920 to D21431
164
Setting location
Unit number
RFID System
User's Manual
Set in IORD instruction.