Mitsubishi GOT1000 Series User Manual

19 - 46
19.5 Message Formats
19.5.5 Formats 7 to 10 (QnA compatible 3C/4C frame)
19.5.5 Formats 7 to 10 (QnA compatible 3C/4C frame)
1 Basic format of data communication
This is the same message format as when communication is performed using the MC protocol (QnA
compatible 3C/4C frame) of the Q/QnA Series serial communication module.
For details of the basic format of data communication, refer to the following manual:
Q Corresponding MELSEC Communication Protocol Reference 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 in word units (0401) command in format 8 (QnA
compatible 4C frame (format 2))
QnA compatible 4C frame (format 5)
GOT cannot use the QnA compatible 4C frame (format 5).
2 Data item contents of message format
Data code during communication
Communication is performed in ASCII code.
(1) Block No., network No., PLC No., request destination module I/O No. and station No.
Ignored in a microcomputer connection of the GOT.
Specify "00". (The request destination module I/O No. is "0000".)
"00" is converted to a 2-digit ASCII code (Hex) and transmitted from the upper digit.
(The request destination module I/O No. is 4-digit.)
(2) Station No.
Station No. is used to identify the GOT with which the host communicates. (Setting range: 0 to 1F
H)
Data notated in Hex is converted to a 2-digit ASCII code (Hex) and transmitted from the upper digit.
The GOT processes the command whose station No. matches to "Host Address (0 to 31)" set at
"Communication Detail Settings". (The message of command whose station No. does not match is
ignored.)
For setting method of "Communication Detail Settings", refer to the following.
Section 19.6.3 Setting communication interface (Communication settings)
Sum check is performed in this range.
05
H
ENQ
(H) (L)
BA
42
H 41H
Sum check
(H) (L)
Device
code
*
2A
H
D
44
H
(H) (L)
Block No.
0
30
H
0
30
H
(H) (L)
Frame ID
No.
F
46
H
8
38
H
(H) (L)
PLC No.
0
30
H
0
30
H
(H)
Start Device
1
31
H
––
0
30
H
–
0
30
H
(L)
0
30
H
–
0
30
H
0
30
H
Character A section
(H) (L)
Station No.
0
30
H
0
30
H
(H) (L)
Network
No.
0
30
H
0
30
H
(H) –
Request destination
module I/O No.
0
30
H
0
30
H
– (L)
0
30
H
0
30
H
(H) (L)
Request destination
module station No.
0
30
H
0
30
H
(H) (L)
Host Address
No.
0
30
H
0
30
H
(H) –
Command
0
30
H
4
34
H
– (L)
0
30
H
1
31
H
(H) –
Sub-command
0
30
H
0
30
H
(L)
0
30
H
0
30
H
– (H) –
Number of
device points
0
30
H
0
30
H
– (L)
0
30
H
2
32
H
Following
*1
*1

Mitsubishi GOT1000 Series Specifications

General

Brand	Mitsubishi
Model	GOT1000 Series
Category	Touch terminals
Language	English