61/70
“LS Ubiquitous RF-ID System”
[Table 4.2.8.5] Description of each item of ASCII Receiving Frame
No.
Items
Description
1
ENQ
Header of ASCII Frame (marked by 05)
2
Start Byte
Byte indicating the start of Receiving Frame (marked by 46 30)
3
Station ID
Station no. given to Reader (adjusting the value of rotary
switch next to Reader)
4
Data Length
Total length of Frame (from Start Byte to Check Sum)
5
Control Mode
Mode to select the control environment of Reader
6
Command
Command according to each Control Mode
7
Error Code
At normal Receiving Frame : ’30’ ‘30’
8
Check Sum
Check Sum value
9
Carriage Return
Tail of ASCII Frame (marked by 0D)
10
Line Feed
Tail of ASCII Frame (marked by 0A)
ASCII mode communication shall be set by changing the value of Frame marked as HEX
value in basic Sending/Receiving Frame of HEX mode communication with ASCII value and the
Sending/Receiving Frame shall be composed by adding 05 (ENQ) indicating the header of
ASCII Frame and 0D(CR) and 0A(LF) indicating the tail of ASCII Frame.
The below shows the Frame Structure changing from HEX mode to ASCII mode
communication.
Sending Frame < HEX mode>
No.
1
2
3
4
5
6
7
8
9
Ready
F0
00
09 03
03
23
(Baddr)
(Bum)
(CS)
Sending Frame < ASCII mode>
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Ready
05
46
30 30 30
30 39 30 33
30
33
32
33
(Baddr)
(Bum)
(CS)
0D 0A
ENQ
Carriage
Return
Line
Feed
Summary of Contents for LGRF-H
Page 23: ...23 70 LS Ubiquitous RF ID System 2 4 Product Appearance and Dimension Fig 2 4 1 LGRF H Reader...
Page 24: ...24 70 LS Ubiquitous RF ID System Fig 2 4 2 LGRF H Reader Fig 2 4 3 Antenna A Type...
Page 25: ...25 70 LS Ubiquitous RF ID System Fig 2 4 4 Antenna B Type Fig 2 4 5 Antenna C Type...
Page 70: ...70 70 LS Ubiquitous RF ID System 2 Example of MELSEC PLC ASCII mode communication...
