PARAMETERS
118
3) Reply data from inverter to computer during data read
123 4 5
1234567891011
123456789
12345678910111213
Inverter
station
number
Sum
check
←
Number of characters
Format E
[No data error detected]
Format E'
Format E"
3
STX
*
3
STX
*
3
STX
*
Inverter
station
number
Inverter
station
number
Read
data
Read
data
Read
data
3
ETX
*
3
ETX
*
3
ETX
*
Sum
check
Sum
check
*
4
*
4
*
4
Format F
[Data error detected]
Inverter
station
number
3
NAK
*
Error
code
*
4
←
Number of characters
4) Send data from computer to inverter during data read
1234 123 4
3
ACK
*
Inverter
station
number
←
Number of characters
Format G
[No data error detected]
*
4
Format H
[Data error detected]
3
NAK
*
Inverter
station
number
*
4
←
Number of character
(
4
)
Data definitions
1) Control codes
Signal ASCII Code Description
STX 02
H
Start of Text (Start of data)
ETX 03
H
End of Text (End of data)
ENQ 05
H
Enquiry (Communication request)
ACK 06
H
Acknowledge (No data error detected)
LF 0A
H
Line Feed
CR 0D
H
Carriage Return
NAK 15
H
Negative Acknowledge (Data error detected)
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.)