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( 3 ) Data format
Data used is hexadecimal.
Data is automatically transferred in ASCII between the computer and inverter.
" Data format types
1) Communication request data from computer to inverter
[Data write]
Inverter
*
3
Format A
station
ENQ
number
1
2
Inverter
*
3
Format A'
station
ENQ
number
1
2
Inverter
*
3
Format A"
station
ENQ
number
1
2
[Data read]
Inverter
*
3
Format B
station
ENQ
number
1
2
Note: 1. The inverter station numbers may be set between 00
and 31) in hexadecimal.
2. *3 indicates the control code.
3. *4 indicates the CR or 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.
Also, the presence and absence of the CR and LF codes can be selected
using Pr. 124.
4. At *5, when Pr. 123 "waiting time setting" ≠ 9999, create the communication
request data without "waiting time" in the data format.
(The number of characters is decremented by 1.)
2) Send data from inverter to computer during data write
[No data error detected]
Inverter
*
3
Format C
station
ACK
number
1
2
Instruction
Data
code
3
4
5
6
7
8
Instruction
Data
code
3
4
5
6
7
8
Instruction
code
3
4
5
6
7
8
Instruction
Sum
code
check
3
4
5
6
7
8
[Data error detected]
*
4
Format D
←Number of characters
3
4
Sum
*
4
check
←Number of characters
9
10 11 12 13
Sum
*
4
check
←Number of characters
9
10 11
Sum
*
Data
check
9
10 11 12 13 14 15
*
4
←Number of characters
9
Inverter
*
3
Error
station
NAK
code
number
1
2
3
4
117
PARAMETERS
4
←Number of characters
and 1F
(stations 0
H
H
*
4
←Number of characters
5
4
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