Mitsubishi Electric FR-A820-00046 Instruction Manual page 795

Parameters
● Data reading format
– ³ Communication request data from the computer to the inverter
Format
– » Reply data from the inverter to the computer (No data error detected)
Format
Format
– » Reply data from the inverter to the computer (Data error detected)
Format
– ´ Transmission data from the computer to the inverter when reading data
Format
(No data error detected)
(Data error detected)
Indicates a control code.
Specifies the inverter station numbers in the range of H00 to H1F (stations 0 to 31) in hexadecimal.
When Pr. 123 and Pr. 337 (Waiting time setting) ≠ 9999, create a communication request data
without "waiting time" in the data format. (The number of characters decreases by 1.)
CR, 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 be also made on the inverter according to the computer. Whether the CR and LF codes
will be present or absent can be selected using Pr. 124 or Pr. 341 (CR/LF selection).
FR-A800
1 2
Inverter station No.
B
ENQ
1 2
Inverter station
E
STX
No.
Inverter station
E1
STX
No.
Inverter station
E2
STX
No.
1 2
Inverter station
E3
STX
No.
Number of characters
1 2
Inverter station No.
D
NAK
Number of characters
1 2
Inverter station No.
C
ACK
F Inverter station No.
NAK
(N) Operation via communication and its settings
Number of characters
3 4 5 6
Instruction code
Number of characters
3 4 5 6
Read data
Read data
ETX
Read data
Number of characters
3 4 to 23
Read data (Inverter model information)
3 4 5
Error
code
3 4
7 8 9
Sum check
7 8 9 10
Sum check
ETX
Sum check
ETX
24
ETX
11 12 13
Sum check
25 26 27
Sum check
5 - 615