Mitsubishi Electric MELSEC IQ-R series Reference Manual page 445

Data to be specified
■Extension specification
Specify the value obtained by dividing the start input/output number of an intelligent function module by 16 in hexadecimal.
• ASCII code: Specify U (55H) at the head of data. Convert the numerical value to 3-digit ASCII code (hexadecimal), and
send it from the upper digits.
• Binary code: Send 2-byte numerical values from the lower byte (L: bits 0 to 7).
Ex.
Start input/output number 0010H of a module
ASCII code
U 0 0 1
55 30 30 31
H H H H
Indirect specification of the start input/output number can also be performed by using the CPU module index
register.
Page 446 Access to index the network No. and start input/output number
■Device code and device number
Specify the following device. (Page 67 Devices)
• Module access device (G)
For the values of device codes, refer to the following section.
Page 70 Device code list
Using the index register of CPU module, the access target device number can be specified indirectly.
Page 447 Access to index the device number
Device extension specification example
Access the buffer memory (address: 1) of intelligent function module whose start input/output number is 0030H by specifying
subcommand 0080.
■Data communication in ASCII code
Extension
Subcommand
specification
0 0 8 0 0 0 U
30 30 38 30 30 30 55
H H H H H H H
■Data communication in binary code
Subcommand Device number
80 00 00 00 01 00 00
H H H H H H H
Binary code
01 00
H H
Device
code
0 0 3 0 0 0 G *
30 30 33 30 30 30 47 2A
H H H H H H H
Device Extension
code
specification
AB 00 00 03 00 F8
H H H H H H
Device number
0 0 0 0 0 1 0
30 30 30 30 30 31 30
H H H H H H H H
Appendix 1 Read/Write by Device Extension Specification
0 0
30 30
H H
APPENDICES APPENDIX
A
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