Appendix 2 Dedicated Instruction List - Mitsubishi MELSEC-Q Series User Manual

APPENDIX

Appendix 2 Dedicated Instruction List

App.
App - 2
Transient transmission can be performed for the local stations and intelligent device
stations using dedicated instructions.
The following table lists the dedicated instructions that can be used for each of these
stations:
Target station Instruction
RIRD
Master station
Local station
RIWT
RIRD
RIWT
RIRCV
Intelligent
device station
RISEND
RIFR
RITO
Master station RLPASET
POINT
Execute the dedicated instructions while the data link is being performed.
If any of the dedicated instructions is executed offline, no error will occur, but the
execution of the dedicated instruction will not be completed.
Description
Reads data from the buffer memory or the
PLC CPU device of the specified station.
Writes data into the buffer memory or the PLC
CPU device of the specified station.
Reads data from the buffer memory of the
specified station.
Writes data into the buffer memory of the
specified station.
Automatically performs handshaking with the
specified station and reads data from the
buffer memory of that station.
Automatically performs handshaking with the
specified station and writes data into the buffer
memory of that station.
Reads data in the automatic update buffer of
the specified station.
Writes data into the automatic update buffer of
the specified station.
Sets the network parameters for the master
station and starts up the data link.
MELSEC-Q
Reference page
Appendix 2.1
Appendix 2.2
Appendix 2.1
Appendix 2.2
Appendix 2.3
Appendix 2.4
Appendix 2.5
Appendix 2.6
Appendix 2.7
App - 2