Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual page 420

Processing details
• These instructions read device data by the number of points specified by (n) from the read offset specified by (s) in the
device data storage file in data memory, and store it in the device specified by (d). (s) indicates the offset from the start of
the device data storage file and can be specified by word offsets (incremented by 1 every 16 bits).
(d)
• Use the SP.DEVST instruction to write device data to the device data storage file. (Page 419 SP.DEVST)
Operation error
Error code Description
(SD0/SD8067)
2820H • The value specified by (s), and (s)+(n) are out of range of the device data storage file.
• The device range specified by (d) exceeds the corresponding device range.
2822H Device that cannot be specified is specified.
3405H The value stored in a device specified by (n) is 0.
8 APPLICATION INSTRUCTION
418
8.6 Reading/writing Data Instructions
Data memory
Device data
(s)
storage file
Read offset of the device data storage file
Read offset
+0
(n)
+1
+2
16 bits