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Mitsubishi Electric FR-E520 Instruction Manual Page 149

Transistorized inverter.
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(3) Data format
Data used is hexadecimal.
Data is automatically transferred in ASCII between the computer and inverter.
• Data format types
1) Communication request data from computer to inverter
[Data write]
*2 Inverter
*1
Format A
station
ENQ
number
1
2
3
*2 Inverter
*1
Format A'
station
ENQ
number
1
2
3
*2 Inverter
*1
Format A''
station
ENQ
number
1
2
3
[Data read]
*2 Inverter
*1
Format B
station
ENQ
number
1
2
3
2) Reply data from inverter to computer during data write
[No data error detected]
*2 Inverter
*1
Format C
station
ACK
number
1
2
3) Reply data from inverter to computer during data read
[No data error detected]
*2 Inverter
*1
Format E
station
STX
number
1
2
3
*2 Inverter
*1
Format E'
station
STX
number
1
2
3
*2 Inverter
*1
Format E''
station
STX
number
1
2
3
4) Send data from computer to inverter during data read
[No data error detected]
(can be skipped)
*2 Inverter
*1
Format G
station
ACK
number
1
2
*3
Instruction
Waiting
code
time
4
5
6
7
8
*3
Instruction
Waiting
Data
code
time
4
5
6
7
8
*3
Instruction
Waiting
code
time
4
5
6
7
8
*3
Instruction
Sum
Waiting
check
code
time
4
5
6
7
8
[Data error detected]
*4
Format D
Number of
3
4
characters
*1
Read data
ETX
4
5
6
7
8
Read
*1
Sum
data
ETX
check
4
5
6
7
8
Read data
4
5
6
7
8
*4
←Number of characters
3
4
Sum
Data
*4
check
9
10
11
12
13
Sum
*4
check
Number of
9
10
11
characters
Data
9
10
11
12
13
*4
Number of
9
characters
*2 Inverter
*1
Error
station
NAK
code
number
1
2
3
4
Sum
*4
check
9
10
11
*4
Number of
9
characters
*1
Sum
*4
ETX
check
9
10
11
12
13
[Data error detected]
*1
Format H
NAK
1
139
PARAMETERS
←Number of
characters
Sum
*4
check
←Number of
14
15
characters
*4
Number of
5
characters
[Data error detected]
Format F
*2 Inverter
*1
Error
station
NAK
code
number
1
2
3
4
*2 Inverter
station
*4
number
Number of
2
3
4
characters
4
*4
5

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