Mitsubishi Electric MELSEC IQ-R series Reference Manual page 71

Device number
Specify the number of device to be accessed.
Specify the device number within the range of the access target module.
■Data communication in ASCII code
Convert the numerical value to 6-digit or 8-digit ASCII code, and sent it from the upper digits.
Specify the device number in decimal or hexadecimal, depending on the device type. (Page 70 Device code list)
• For MELSEC-Q/L series: 6-digit ASCII code
• For MELSEC iQ-R series: 8-digit ASCII code (10 digits at device extension specification)
The '0' in the upper digits can also be specified with a space (code: 20H).
■Data communication in binary code
Send the 3-byte or 4-byte numerical value in order from the lower byte (L: bit 0 to 7).
For a device of which device number is in decimal, convert it to hexadecimal and specify.
• For MELSEC-Q/L series: 3 bytes
• For MELSEC iQ-R series: 4 bytes
*1 For C24, the additional code may be added. (Page 35 Additional code (10H))
Ex.
For input (X) 1234 (a device of which device number is in hexadecimal)
Subcommand type
For MELSEC-Q/L series
For MELSEC iQ-R series
For internal relay (M) 1234 (a device of which device number is in decimal)
For binary code, convert the device number to hexadecimal. '1234' (decimal)  '4D2' (hexadecimal)
Subcommand type
For MELSEC-Q/L series
For MELSEC iQ-R series
For internal relay (M) 16 (with additional code)
For C24 binary code, specify '10H' as '10H + 10H'. (Page 35 Additional code (10H))
Subcommand type
For MELSEC-Q/L series
For MELSEC iQ-R series
*1
*1
ASCII code
0 0 1 2 3 4
30 30 31 32 33 34
H H H H H
0 0 0 0 1 2
30 30 30 30 31 32
H H H H H
ASCII code
0 0 1 2 3 4
30 30 31 32 33 34
H H H H H
0 0 0 0 1 2
30 30 30 30 31 32
H H H H H
Binary code (For C24)
DLE
10 10 00 00
H H H H
DLE
10 10 00 00 00
H H H H H
Binary code
34 12
H H H
3 4
33 34 34 12
H H H H H
Binary code
D2 04
H H H
3 4
33 34 D2 04
H H H H H
Binary code (For E71)
10 00
H H
10 00
H H
8.1 Data to be Specified in Commands
00
H
00 00
H H
00
H
00 00
H H
00
H
00 00
H H
8 DEVICE ACCESS
8
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