7 APPLICATION INSTRUCTIONS
7.6 Reading/Writing Data Instructions
595
7
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).
• When the S(P).DEVLD instruction is used, a device data storage file must be set up in advance. (
• Use the SP.DEVST instruction to write device data to the device data storage file. (
Operation error
Error code
(SD0)
Description
2840H
The device data storage file is not set in parameter.
3405H
The value specified by (n) is 0.
+0
+1
+2
(d)
(n)
(s)
Data memory
Device data storage file
Read offset of the device data
storage file
Read offset
16 bits
Summary of Contents for MELSEC iQ-R Series
Page 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Page 34: ...32 MEMO ...
Page 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Page 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Page 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Page 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Page 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Page 2109: ......