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Description of parameters
Data reading format
Communication request data from the computer to the converter 1)
Reply data from the converter to the computer 3) (No data error detected)
Reply data from the converter to the computer 3) (With data error)
Send data from the computer to the converter 5)
Format
Number of Characters
1 2 3 4 5 6 7 8 9
B
ENQ
Station number Instruction code
Sum
check
Format
Number of Characters
1 2 3 4 5 6 7 8 9 10 11
E
STX
Station number Read data
ETX
Sum
check
E1
STX
Station number Read data
ETX
Sum
check
Format
Number of Characters
1 2 3 4 5
D
NAK
Station number
Error
code
Format
Number of Characters
1 2 3 4
C
(Without
data error)
ACK
Station number
F
(With data
error)
NAK
Station number
Indicate a control code
Specify the station numbers between H00 and H1F (stations 0 to 31) in hexadecimal.
Waiting time
When Pr.123 (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 converter, 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 converter according to the computer. Whether the CR and LF
codes will be present or absent can be selected using Pr. 124 (CR/LF selection).
HC2.book 100 ページ ２０１２年１１月１９日 月曜日 午前１０時５２分