Mitsubishi Electric FR-E700EX Instruction Manual page 213

 Data reading format
Communication request data from the computer to the drive unit 1)
Format
1
ENQ
B

Reply data from the drive unit to the computer 3) (No data error detected)
Format
1
STX
E

STX
E1

STX
E2

Format
1
STX
E3

Reply data from the drive unit to the computer 3) (With data error)
Format
1
NAK
D

Send data from the computer to the drive unit 5)
Number of Characters
Format
1
C
ACK

(Without data error)
F
NAK

(With data error)

Indicate a control code

Specify the drive unit station numbers between H00 and H1F (stations 0 to 31) in hexadecimal.

When the Pr.123 PU communication waiting time is other than 9999, create the 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 drive unit, 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 drive unit according to the computer. Whether the CR and LF codes will be present or
absent can be selected using Pr.124 PU communication CR/LF selection.
Number of Characters
2 3 4 5
Drive unit station
Instruction code

number
2 3 4 5
Drive unit station
Read data

number
Drive unit station
Read data

number
Drive unit station

number
2 3
Drive unit station
Read data (Drive unit type information)

number
Number of Characters
2 3 4 5
Drive unit station
Error


number code
2 3 4
Drive unit station


number
Drive unit station


number
Communication operation and setting
6 7 8 9
 
Sum check
Number of Characters
6 7 8 9
ETX
Sum check

ETX

Sum check

Read data
Number of Characters
4 to 23
10 11 12 13

ETX

Sum check

24 25 26 27
ETX

Sum check

211
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