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PARAMETERS
102
(3) Data format
Data used is hexadecimal.
Data is automatically transferred in ASCII between the computer and inverter.
1) Data format types
(1) Communication request data from computer to inverter
Format A
*
3
ENQ
Data
*
4
12345678910111213
Format A'
Data
1234567891011
Format
A"
123456789
[Data write]
[Data read]
Format B
123456789
10 11 12 13 14 15
Data
Inverter
station
number
Instruction
code
Inverter
station
number
Instruction
code
Inverter
station
number
Instruction
code
Inverter
station
number
Instruction
code
Sum
check
Sum
check
Sum
check
Sum
check
Waiting
time
Waiting
time
*
5
Waiting
time
Waiting
time
*
5
←
Number of characters
←
Number of characters
←
Number of characters
←
Number of characters
*
3
ENQ
*
3
ENQ
*
3
ENQ
*
4
*
4
*
4
Note:1. The inverter station numbers may be set between H00 and H1F (stations 0
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) Reply data from inverter to computer during data write
*
3
NAK
123 4
*
4
5
[No data error detected]
[Data error detected]
Inverter
station
number
Format C Format D
Error
code
*
3
ACK
*
4
1234
Inverter
station
number
←
Number of characters
←
Number of characters
4