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Mitsubishi Electric FR-E720-0.1K(SC) Instruction Manual Page 221

Fr-e700 series.
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Data reading format
Communication request data from the computer to the inverter 1)
Format
1
2
ENQ
Inverter
B
∗1
station number
Reply data from the inverter to the computer 3) (No data error detected)
Format
1
2
STX
Inverter
E
∗1
station number
STX
Inverter
E1
∗1
station number
STX
Inverter
E2
∗1
station number
Format
1
2
STX
Inverter
E3
∗1
station number
Reply data from the inverter to the computer 3) (With data error)
Number of Characters
Format
1
2
NAK
Inverter
D
∗1
station number
Send data from the computer to the inverter 5)
Number of Characters
Format
1
2
C
ACK
Inverter
(Without
∗1
station number
data error)
F
NAK
Inverter
(With data
∗1
station number
error)
∗1
Indicate a control code
∗2
Specify the inverter station numbers between H00 and H1F (stations 0 to 31) in hexadecimal.
∗3
When the Pr. 123 PU communication waiting time setting is other than 9999, create the communication request data without "waiting time" in the data
format. (The number of characters decreases by 1.)
∗4
CR, LF code
When data is transmitted from the computer to the inverter, codes CR (carriage return) and LF (line feed) are automatically set at the end of a data group
on some computers. In this case, setting must also be made on the inverter according to the computer. Whether the CR and LF codes will be present or
absent can be selected using Pr. 124 PU communication CR/LF selection.
Number of Characters
3
4
5
6
∗3
Instruction code
∗2
Number of Characters
3
4
5
6
Read data
∗2
ETX
Read data
∗2
∗1
Read data
∗2
Number of Characters
3
4 to 23
Read data (Inverter type information)
∗2
3
4
5
Error
∗4
∗2
code
3
4
∗4
∗2
∗4
∗2
Communication operation and setting
7
8
9
Sum
∗4
check
7
8
9
10
ETX
Sum
∗1
check
Sum
∗4
check
ETX
∗1
ETX
11
12
13
∗4
Sum
∗4
check
24
25
26
27
Sum
∗4
∗1
check
221
4

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