Appendices; Appendix 1 Module Label - Mitsubishi Electric MELSEC iQ-R Series User Manual

APPENDICES

Appendix 1
Module labels can be used to set the I/O signals and buffer memory of the RJ71EIP91.
Module label structure
Module label names are defined with the following structure.
"instance name"_"module number"."label name"
"instance name"_"module number"."label name"_D
Ex.
EIP91_1.bSts_ModuleReady
■Instance name
Instance name of the RJ71EIP91 is as shown below.
Module model name
RJ71EIP91
■Module number
Module numbers start from 1 and are added to identify modules that have the same instance name.
■Label name
A label name unique to the module.
■_D
This symbol indicates that the module label is for direct access. If this symbol is not present, the label is for refreshing.
Refreshing and direct access differ as shown below.
Type
Refresh
Direct access
APPX
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Appendix 1 Module Label

Module Label
Description
The values written to and read from the module label are reflected on the module as
a batch during refreshing.
This function makes it possible to reduce the program execution time.
The values written to and read from the module label are immediately reflected on
the module.
The program execution time is longer than the refresh time, but the responsiveness
increases.
Instance name
EIP91
Access timing
Refreshing
Writing to/reading from module labels