Appendix 3 Module Labels - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

Appendix 3
The buffer memory of an FX5-OPC can be set using module labels.
Structure of a module label
The module label name is defined with the following structure.
• "Instance name"_"data format""label name"_D
■Instance name
The following is the instance name of an FX5-OPC.
Model
FX5-OPC
Ex.
FX5OPC_uServerStatus_D
■Data format
The data format indicates the size of a buffer memory area. The following shows the classification.
Data format
b
u
ud
un
■Label name
A label name unique to the module.
■_D
This symbol indicates that the module label is for direct access. Value update timing is shown below.
Type
Direct access
APPX
88

Appendix 3 Module Labels

Module Labels
Instance name
FX5OPC
Description
Bit
Word [Unsigned]/Bit String [16-bit]
Double word [Unsigned]/Bit String [32-bit]
Word of multiple buffer memories [Unsigned]/Bit String [16-bit]
Description
The values read/written from/to the module labels are reflected to
the module immediately.
Access timing
At writing to or reading from the module label