Formats 6, 7 (4E Frame) - Mitsubishi Electric GOT1000 Series Connection Manual
Microcomputers, modbus products, peripherals
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3.4.6
Formats 6, 7 (4E frame)
Basic format of data communication
This is the same message format as when communication is performed using the MC protocol (4E 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 6 (4E frame (ASCII))
Request type
0
5
4
0
0
35
34
30
30
30
H
H
H
H
(H)
(L)
(H)
(L)
(H)
*1
Request data length
0
0
1
8
30
30
31
38
H
H
H
H
(H)
(L)
(H)
(L)
(format 7:4E frame (Binary))
Request
Fixed
Serial No.
type
value
54
00
00
00
00
H
H
H
H
H
Details of data items in message format
POINT
POINT
POINT
Data code during communication
Communication of format 6 is performed in ASCII code.
Communication of the format 7 is performed in Binary code.
3 - 50
3. MICROCOMPUTER CONNECTION (ETHERNET)
3.4 Message Formats
MELSEC-Q/L MELSEC Communication Protocol Reference Manual
Serial No.
Fixed value
0
0
0
0
0
30
30
30
30
30
H
H
H
H
H
H
(L)
(H)
(L)
(H)
(L)
CPU monitoring timer
0
0
0
0
0
30
30
30
30
30
H
H
H
H
H
(H)
(L)
(H)
(L)
(H)
Data length target range
Sub-command
1)
0
0
30
30
H
H
(H)
–
Request
Request
Network
PLC
destination
destination
module
No.
No.
module I/O No.
station No.
00
01
01
00
00
00
H
H
H
H
H
Network
PLC No.
No.
0
0
0
1
0
30
30
30
31
30
31
H
H
H
H
H
(H)
–
(H)
(L)
(H)
(L)
Command
4
0
1
34
30
31
H
H
H
–
–
(L)
Character A section
Device
code
0
0
D
*
0
30
30
44
2A
30
30
H
H
H
H
H
–
(L)
(H)
(L)
(H)
–
Data length target range
CPU
Request
Command
monitoring
data length
timer
0
00
00
00
01
H
CH
H
H
H
H
Request destination
Request destination
module I/O No.
module station No.
1
0
0
0
0
0
30
30
30
30
30
H
H
H
H
H
(H)
–
–
(L)
(H)
1)
Head Device
0
0
1
0
0
0
30
31
30
30
30
H
H
H
H
H
–
–
–
(L)
(H)
Sub-
Head Device
command
04
00
00
64
00
00
H
H
H
H
H
H
Data length target range
Following
0
*1
30
H
H
(L)
Device points
0
0
2
30
30
32
H
H
H
H
–
–
(L)
Device
Device points
code
A8
02
00
H
H
H
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