Mitsubishi Electric MELSEC iQ-R Series - Page 443

APPENDICES APPENDIX
Appendix 1 Read/Write by Device Extension Specification
441
A
Data to be specified
■Extension specification
Specify the access target network No. in hexadecimal.
• ASCII code: Specify J (4AH) 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.
For network No.8
Using the index register of CPU module, the access target network No. can be specified indirectly.
Page 446 Access to index the network No. and start input/output number
■Device code and device number
Specify the following devices. (Page 67 Devices)
• Link input (X)
• Link output (Y)
• Link relay (B)
• Link special relay (SB)
• Link register (W)
• Link special register (SW)
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 W100 (J1\W100) of network No.1 by specifying subcommand 0080.
■Data communication in ASCII code
■Data communication in binary code
ASCII code Binary code
J
4A
H
0
30
H
0
30
H
8
38
H
08 H 00 H
00
30 H 30 H
00
30 H 30 H
80
38 H 30 H
00
30 H 30 H
01
30 H 31 H
00
30 H 30 H
J0
4A H 30 H
01
30 H 31 H
00
30 H 30 H
0
30 H
W
57 H
*
2A H
00
30 H 30 H
0
30 H
Device
code
Device number
Subcommand
Extension
specification
00 H 00 H 00 H 01 H 00 H B4 H F9 H 00 H 00 H 01 H 00 H 80 H 00 H
Subcommand
Device
number
Device
code
Extension
specification