Mitsubishi Electric MELSEC IQ-R series Reference Manual page 355

Number of device points
Specify the number of device points to be read or written.
Convert the numerical value to 2-digit ASCII code (hexadecimal), and send it from the upper digits.
Specify the number of device points in one command within the device points that can be processed in one communication.
Page 465 Number of Processing per One Communication
Specify '00' for 256 points.
Ex.
5 points, 20 points, 256 points
Number of device points
5 points
20 points
256 points
Read data, write data
The data storage method is the same as reading/writing data with device access of 4C/3C/2C frame. (Page 74 Read
data, write data)
ASCII code
0 5
30 35
H H
1 4
31 34
H H
0 0
30 30
H H
17 COMMUNICATING USING 1C FRAMES
17.4 Device Memory Read and Write
17
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