Mitsubishi Electric FR-D700 Instruction Manual page 189

Data reading format
Communication request data from the computer to the inverter 1)
Format
1 2
ENQ Inverter
B
∗1
station number
Reply data from the inverter to the computer 3) (No data error detected)
Format
1 2
STX Inverter
E
∗1
station number
STX Inverter
E1
∗1
station number
STX
Inverter
E2
∗1
station number
Format
1 2
STX Inverter
E3
∗1
station number
Reply data from the inverter to the computer 3) (With data error)
Number of Characters
Format
1 2
NAK Inverter
D
∗1
station number
Send data from computer to inverter during data read 5)
Number of Characters
Format
1 2
C
ACK Inverter
(Without
∗1
station number
data error)
F
NAK Inverter
(With data
∗1
station number
error)
∗1
Indicate a control code
∗2
Specify the inverter station numbers between H00 and H1F (stations 0 to 31) in hexadecimal.
∗3
Set waiting time. When the Pr. 123 (waiting time setting) is other than 9999, create the communication request data without "waiting time" in the data
format. (The number of characters decreases by 1.)
∗4
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 also be 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 (CR, LF selection).
Number of Characters
3 4 5 6
∗3
Instruction code
∗2
Number of Characters
3 4 5 6
Read data
∗2
ETX
Read data
∗2 ∗1
Read data
∗2
Number of Characters
3 4 to 23
Read data (Inverter type information)
∗2
3 4 5
Error
∗4
∗2
code
3 4
∗4
∗2
∗4
∗2
Communication operation and setting
7 8 9
Sum
∗4
check
7 8 9
ETX
Sum
∗1
check
Sum
∗4
check
ETX
ETX
10 11 12 13
∗4
Sum
∗4
∗1
check
24 25 26 27
Sum
∗4
∗1
check
185
4