Mitsubishi Electric 800 Series Instruction Manual page 558

• Data reading format
a. Communication request data from the computer to the inverter
Format
1
ENQ
B

c. Reply data from the inverter to the computer (No data error detected)
Format
1
E STX

E1 STX

E2 STX

Format
1
E3 STX

c. Reply data from the inverter to the computer (Data error detected)
Number of characters
Format
1
D NAK

e. Transmission data from the computer to the inverter when reading data
Number of characters
Format
1
C
(No data error ACK

detected)
F
NAK

(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.

Set the delay time. When Pr.123 or 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).
Number of characters
2 3 4 5
Inverter station Instruction
No. code

2 3 4 5
Inverter station
Read data
No.

Inverter station
Read data
No.

Inverter station
Read data
No.

2 3
Inverter station
Read data (Inverter model information)
No.

2 3 4 5
Inverter station Error

No. code

2 3 4
Inverter station

No.

Inverter station

No.

(N) Operation via communication and its settings
6 7 8 9
Sum check
 
Number of characters
6 7 8 9
ETX Sum check

ETX Sum check
 
Number of characters
4 to 23
10 11 12 13

ETX Sum check
 
24 25 26 27
ETX Sum check
 
557
PARAMETERS
5
GROUP
N