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3) Reply data from inverter to computer during data read
[No data error detected]
* 3
Format E
STX
1
* 3
Format E'
STX
1
* 3
Format E"
STX
1
4) Send data from computer to inverter during data read
[No data error detected]
Inverter
* 3
station
Format G
ACK
number
1
2
( 4 ) Data definitions
1) Control codes
Signal
ASCII Code
STX
ETX
ENQ
ACK
LF
CR
NAK
2) Inverter station number
Specify the station number of the inverter which communicates with the computer.
3) Instruction code
Specify the processing request, e.g. operation, monitoring, given by the computer to
the inverter. Hence, the inverter can be run and monitored in various ways by
specifying the instruction code as appropriate. (Refer to page 202.)
4) Data
Indicates the data such as frequency and parameters transferred to and from the
inverter. The definitions and ranges of set data are determined in accordance with
the instruction codes. (Refer to page 202.)
Inverter
Read
station
data
number
2
3
4
5
6
7
Inverter
Read
Sum
* 3
station
data
check
ETX
number
2
3
4
5
6
7
Inverter
Read
station
data
number
2
3
4
5
6
7
[Data error detected]
* 4
Format H
←Number of characters
3
4
H02
Start of Text (Start of data)
H03
End of Text (End of data)
H05
Enquiry (Communication request)
H06
Acknowledge (No data error detected)
H0A
Line Feed
H0D
Carriage Return
H15
Negative Acknowledge (Data error detected)
[Data error detected]
Sum
* 3
* 4
check
ETX
8
9
10 11
* 4
8
9
Sum
* 3
* 4
check
ETX
8
9
10 11 12 13
Inverter
* 3
station
NAK
number
1
2
3
Description
125
PARAMETERS
Format F
Inverter
* 3
station
NAK
number
1
2
3
* 4
←Number of characters
4
Error
* 4
code
4
5
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