Mitsubishi Electric FR-CC2-N Series, Инструкция по эксплуатации

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111
5. PARAMETERS
5.7 (N) Communication operation parameters
1
2
3
4
5
6
7
8
9
10
c. Reply data from the converter unit to the computer (No data error detected)
c. Reply data from the converter unit to the computer (Data error detected)
e. Transmission data from the computer to the converter unit when reading data
*1 Indicates a control code.
*2 Specifies the converter unit station numbers in the range of H00 to H1F (stations 0 to 31) in hexadecimal.
*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 converter unit, 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, setting must be also made on the converter unit according to the
computer. Use
Pr.124 or Pr.341 for the CR+LF code setting.
 Data definitions
• Control code
• Converter unit station number
Specify the station number of the converter unit which communicates with the computer.
• Instruction code
Specify the processing request, for example, operation or monitoring, given by the computer to the converter unit.
Therefore, the operation or monitoring an item is enabled by specifying the corresponding instruction code. (Refer to
page
117 .)
• Data
Read/write data such as parameters transmitted from/to the converter unit. The definitions and ranges of set data are
determined in accordance with the instruction codes. (Refer to
page 117 .)
• Time delay
Format
Number of characters
1 2 3 4 5 6 7 8 9 10 11 12 13
E
STX
*1
Converter unit
station number
*2
Read data
ETX
*1
Sum check
*4
E1
STX
*1
Converter unit
station number
*2
Read data
ETX
*1
Sum check
*4
E2
STX
*1
Converter unit
station number
*2
Read data (model information / capacity)
ETX
*1
Sum check
*4
Format
Number of characters
1 2 3 4 to 23 24 25 26 27
E3
STX
*1
Converter unit
station number
*2
Read data (model information / converter unit
model)
ETX
*1
Sum check
*4
Format
Number of characters
1 2 3 4 5
D
NAK
*1
Converter unit
station number
*2
Error
code
*4
Format
Number of characters
1 2 3 4
C (No data error
detected)
ACK
*1
Converter unit
station number
*2
*4
F (Data error
detected)
NAK
*1
Converter unit
station number
*2
*4
Signal name ASCII code Description
STX H02 Start Of Text (Start of data)
ETX H03 End Of Text (End of data)
ENQ H05 Enquiry (Communication request)
ACK H06 Acknowledge (No data error detected)
LF H0A Line Feed
CR H0D Carriage Return
NAK H15 Negative Acknowledge (Data error detected)