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Formats 14, 15 (got-f900 Series Microcomputer Connection) - Mitsubishi Electric GOT1000 Series Connection Manual

Microcomputers, modbus products, peripherals.
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2.5.7

Formats 14, 15 (GOT-F900 Series microcomputer connection)

Basic format of data communication
Item
(format 14: GOT-F900 Series microcomputer connection (format
1))
(1) w/out station No.
Request message
(host
GOT)
(2) w/station No.
STX
02
(1) During processing of read commands
(format 14: GOT-F900 Series microcomputer connection (format 1))
STX
02
Response message
during normal
communication
(GOT
host)
(2) During processing of write commands
Response message
during faulty
communication
(GOT
host)
During interrupt
output
*1
Set the number of interrupt data bytes at [Detail setting] in GT Designer3.
For the setting of the number of interrupt data bytes, refer to the following.
Com-
STX
Data
CR
mand
02
0D
H
H
Com-
Station No.
Data
mand
0D
H
(H)
(L)
Data
CR
0D
H
2.6.1 Setting communication interface (Communication settings)
2. MICROCOMPUTER CONNECTION (SERIAL)
Message format
(format 15: GOT-F900 Series microcomputer connection (format
2))
(1) w/out station No.
Com-
STX
mand
02
H
Sum check is performed in this range.
(2) w/station No.
Com-
CR
STX
Station No.
mand
02
H
H
Sum check is performed in this range.
(format 15: GOT-F900 Series microcomputer connection (format 2))
STX
02
H
H
Sum check is performed in this range.
ACK
06
H
NAK
15
H
Output
value
1/2/4
*1
bytes
2.5 Message Formats
Sum
Data
ETX
Check
03
H
(H)
(L)
Sum
Data
ETX
Check
03
H
(H)
(L)
(H)
Sum
Data
ETX
Check
03
H
(H)
1
2
3
4
(L)
5
(L)
6
7
8
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