Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 402 / 608

Communication operation and setting Parameter
6 - 248
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Data writing format
Communication request data from the computer to the inverter
쐃
Reply data from the inverter to the computer
쐋
(No data error detected)
Reply data from the inverter to the computer
쐋
(Data error detected)
햲
Indicate a control code (Refer to Tab. 6-74.)
햳
Specify the inverter station numbers between H00 and H1F (stations 0 to 31) in hexadecimal.
햴
When Pr. 123, Pr. 337 "Waiting time setting" 9999, create the communication request data
without "waiting time" in the data format. (The number of characters decreases by 1.)
햵
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".
Format
Number of Characters
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
A
ENQ
햲
Inverter station
number
햳
Instruction
code
Waiting
time
햴
Data Sum check
햵
A1
ENQ
햲
Inverter station
number
햳
Instruction
code
Waiting
time
햴
Data Sum check
햵
A2
ENQ
햲
Inverter station
number
햳
Instruction
code
Waiting
time
햴
Data Sum check
햵
A3
ENQ
햲
Inverter station
number
햳
Instruction
code
Waiting
time
햴
Send
data
type
Receive
data
type Data 1 Data 2 Sum check
햵
Format
Number of Characters
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
C
ACK
햲
Inverter station
number
햳
햵
C1
STX
햲
Inverter station
number
햳
Send
data
type
Receive
data
type
Error
code
1
Error
code
2
Data 1 Data 2
ETX
햲
Sum check
햵
Format
Number of Characters
1 2 3 4 5
D
NAK
햲
Inverter station
number
햳
Error
code
햵