Formats 8, 9 (Qna Compatible 3E Frame) - Mitsubishi Electric GOT1000 Series Connection Manual
Microcomputers, modbus products, peripherals
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3.4.7
Formats 8, 9 (QnA compatible 3E frame)
Basic format of data communication
This is the same message format as when communication is performed using the MC protocol (QnA compatible 3E
frame) of the Q/QnA Series serial communication module.
For details of the basic format of data communication, refer to the following manual:
This section describes items whose settings differ from the MC protocol of the Q/QnA Series serial communication
module, and the dedicated commands for a GOT microcomputer connection.
Example: Request message for the batch read (0401) command in word units
Device name : D
Head device : 100
Device points : 2
Communication setting of GOT side : Network No.=1, PLC No.=1
(Format 8: QnA compatible 3E frame (ASCII))
Network
Subheader
No.
5
0
0
0
0
35
30
30
30
30
H
H
H
H
H
(H)
(L)
(H)
(L)
(H)
*1
CPU monitoring timer
0
0
0
0
0
30
30
30
30
30
H
H
H
H
(H)
(L)
(H)
(L)
(H)
(Format 9: QnA compatible 3E frame (Binary))
Request
PLC
Network
Subheader
destination
No.
No.
module I/O No.
50
00
01
01
00
H
H
H
H
H
Details of data items in message format
POINT
POINT
POINT
Data code during communication
Communication of format 8 is performed in ASCII code.
Communication of the format 9 is performed in Binary code.
3 - 60
3. MICROCOMPUTER CONNECTION (ETHERNET)
3.4 Message Formats
MELSEC-Q/L MELSEC Communication Protocol Reference Manual
Request destination
PLC No.
module I/O No.
1
0
1
0
0
31
30
31
30
30
H
H
H
H
H
(L)
(H)
(L)
(H)
–
Command
Sub-command
4
0
1
0
0
34
30
31
30
30
H
H
H
H
H
H
–
–
(L)
(H)
–
Data length target data
Request
Request
destination
CPU
module
data length
monitoring timer
station No.
00
00
0
00
00
00
H
H
CH
H
H
H
Request
Request data length
destination
module station No.
0
0
0
0
0
0
30
30
30
30
30
30
H
H
H
H
H
–
(L)
(H)
(L)
(H)
(L)
Character A section
Device
code
0
0
D
*
0
30
30
44
2A
30
H
H
H
H
H
–
(L)
(H)
(L)
(H)
Sub-
Command
Start Device
command
01
04
00
00
64
H
H
H
H
H
Data length target data
Following
1
8
*1
31
38
H
H
H
(H)
(L)
Start Device
0
0
1
0
0
0
30
30
31
30
30
30
H
H
H
H
H
–
–
–
–
(L)
(H)
Device
Device points
code
00
00
A8
02
00
H
H
H
H
H
Device points
0
0
2
30
30
32
H
H
H
H
–
–
(L)
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