Mitsubishi Electric 800 Series Instruction Manual page 488

c. Reply data from the inverter to the computer (Data error detected)
Format Number of characters
1 2
D Inverter station
*1
NAK
*2
No.
*1 A control code.
*2 The inverter station number is specified in hexadecimal in the range of H00 to H1F (stations No. 0 to 31).
*3 Set the delay time. When Pr.123 PU communication waiting time setting or Pr.337 RS-485 communication waiting time setting is set to
other than "9999", create the communication request data without "delay time" in the data format. (The number of characters decreases by 1.)
*4 CR+LF code: When a computer transmits data to the inverter, some computers automatically provide either one or both of the codes CR (carriage
return) and LF (line feed) at the end of a data group. In this case, the same setting is required for data sent from the inverter to the computer. Use
Pr.124 or Pr.341 for the CR+LF code setting.
• Data reading format
a. Communication request data from the computer to the inverter
Format
1
B ENQ
*1
c. Reply data from the inverter to the computer (No data error detected)
Format
1
E *1
STX
E1
*1
STX
E2 *1
STX
Format
1
E3
*1
STX
c. Reply data from the inverter to the computer (Data error detected)
Format
1
D
*1
NAK
e. Transmission data from the computer to the inverter when reading data
Format Number of characters
1
C *1
ACK
(No data error
detected)
F *1
NAK
(Data error detected)
*1 A control code.
*2 The inverter station number is specified in hexadecimal in the range of H00 to H1F (stations No. 0 to 31).
*3 Set the delay time. When Pr.123 PU communication waiting time setting or Pr.337 RS-485 communication waiting time setting is set to
other than "9999", create the communication request data without "delay time" in the data format. (The number of characters decreases by 1.)
*4 CR+LF code: When a computer transmits data to the inverter, some computers automatically provide either one or both of the codes CR (carriage
return) and LF (line feed) at the end of a data group. In this case, the same setting is required for data sent from the inverter to the computer. Use
Pr.124 or Pr.341 for the CR+LF code setting.
3 4 5
Error
*4
code
Number of characters
2 3 4 5
Inverter station Instruction
code
*2
No.
2 3 4 5
Inverter station Read data
*2
No.
Inverter station Read data
*2
No.
Inverter station Read data
*2
No.
2 3
Inverter station Read data (Inverter model information)
*2
No.
Number of characters
2 3 4 5
Inverter station Error
*4
code
*2
No.
2 3 4
Inverter station *4
*2
No.
Inverter station *4
*2
No.
6 7 8 9
Sum check
*3 *4
Number of characters
6 7 8 9
*1 Sum check
ETX
Sum check
*1 *4
ETX
Number of characters
4 to 23
5.12 (N) Operation via communication and its settings
10 11 12 13
*4
*1 Sum check *4
ETX
24 25 26 27
Sum check
*1 *4
ETX
5. PARAMETERS
3
4
5
5
5
6
7
8
9
10
487