Device Access; Commands - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

4.2

Device Access

This section explains the control procedure specification method and shows a specification example when the device memory
is read and written.

Commands

This section explains commands when the device memory is read or written.
Commands
Function
Device Read Bit units
(Batch)
Word units
Device Write Bit units
(Batch)
Word units
Device Read Word units
Random
Device Write Bit units
Random
Word units
Device Read Block Word units
Device Write Block Word units
: Available, : Unavailable
Command Processing content
(Subcommand)
0401 Reads bit devices in 1 point units.
(001)
0401 Reads bit devices in 16 point units.
(000)
Reads word devices in 1 point units.
1401 Writes bit devices in 1-point units.
(001)
1401 Writes bit devices in 16-point units.
(000)
Writes word devices in 1-point units.
0403 Reads bit devices specified randomly in 16-point units
(000) or 32-point units.
Reads word devices specified randomly in 1-point
units or 2-point units.
1402 Sets or resets device memory to bit devices specified
(001) randomly in 1-point units.
1402 Sets or resets device memory to bit devices specified
(000) randomly in 16-point units or 32-point units
Writes device memory to word devices specified
randomly in 1-point units or 2-point units.
0406 Sets n point(s) in the word device or bit device (one
(000) point is specified by 16-bit) as 1 block, specifies
multiple blocks randomly and reads the device
memory.
1406 Sets n point(s) in the word device or bit device (one
(000) point is specified by 16-bit) as 1 block, specifies
multiple blocks randomly and writes the device
memory.
CPU module status
STOP RUN
Write allow Write prohibit
setting setting
  
  
  
  
  
  
4 COMMANDS
4.2 Device Access
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