Mitsubishi Electric MELSEC iQ-R Series User Manual page 155

■Data format
This part indicates the data size of the buffer memory area. The following table lists data types.
Data format
u
w
z
■Label name
This part indicates a label name unique to the module.
■_D
This string indicates that the module label is for direct access. A module label without this string is for auto refresh. The
following table shows the differences between auto refresh and direct access.
Type Description
Auto refresh The values read/written from/to a module label are reflected to the
module in a batch at auto refresh. The run time of a program can
be reduced. To use the auto refresh, set "Target" to "Module Label"
in "Refresh" of "Module Parameter."
Direct access The values read/written from/to a module label are immediately
reflected to the module. The run time of a program is longer than
the one for auto refresh. However, the responsiveness is high.
Description
Word [Unsigned]/Bit string [16 bits]
Word [Signed]
System area
Access timing
At auto refresh
At reading/writing from/to the
module label
Example
R60TC_1.stErrorInfo.uLatest
ErrorCode
R60TC_1.stErrorInfo_D.uLat
estErrorCode_D
APPX
153
Appendix 1 Module Label
A