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3) Reply data from inverter to computer during data read
[No data error detected]
Inverter
*
3
Format E
station
STX
number
1
2
Inverter
*
3
Format E'
station
STX
number
1
2
Inverter
*
3
Format E"
station
STX
number
1
2
4) Send data from computer to inverter during data read
[No data error detected]
Inverter
*
3
Format G
station
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 57.)
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 171.)
*
3
Read
data
ETX
3
4
5
6
7
8
*
Read
3
Sum
data
ETX
check
3
4
5
6
7
8
Read
data
3
4
5
6
7
8
[Data error detected]
Format H
*
4
←Number of characters
3
4
02
Start of Text (Start of data)
H
03
End of Text (End of data)
H
05
Enquiry (Communication request)
H
06
Acknowledge (No data error detected)
H
0A
Line Feed
H
0D
Carriage Return
H
15
Negative Acknowledge (Data error detected)
H
[Data error detected]
Sum
*
4
check
9
10 11
*
4
←Number of characters
9
*
3
Sum
*
4
ETX
check
←Number of characters
9
10 11 12 13
Inverter
*
3
*
station
NAK
number
1
2
3
4
Description
118
PARAMETERS
Format F
Inverter
*
3
Error
station
NAK
code
number
1
2
3
4
4
←Number of characters
*
4
5
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