Appendices; Appendix 1 Module Label - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

APPENDICES

Appendix 1
The I/O signals, buffer memory, link special relay (SB), and link special register (SW) of the master/local module can be set
using module label.
Structure of the module label
The module label name is defined with the following structure.
"Instance name"_"Module number"."Label name"
"Instance name"_"Module number"."Label name"_D
Ex.
GF11_1.bSts_DataLinkError
■Instance name
The following is the instance name of the RJ71GF11-T2.
Model
RJ71GF11-T2
For the instance name of the RJ71EN71 and RnENCPU when the CC-Link IE Field Network function is used, refer to the
following.
 MELSEC iQ-R Ethernet User's Manual (Application)
■Module number
A sequential number starting with "1" for identifying a module from the one with 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. The label without "_D" is for link refresh. The following are the
differences between link refresh and direct access.
Type
Link refresh
Direct access
When multiple master/local modules of the same network number are mounted and the module labels of link
special relay (SB) and link special register (SW) is used for direct access, the access target is the module
which has the smallest slot number.
APPX
282

Appendix 1 Module Label

Module Label
Description
The values read/written from/to the module labels are reflected to the module at link refresh. The
execution time of the program can be shortened.
The values read/written from/to the module labels are reflected to the module immediately.
Although the execution time of the program is longer than the one at the link refresh, the
responsiveness is improved.
Instance name
GF11
Access timing
At link refresh
At writing to or reading from
the module label