Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 37

Specifying tag data and public variables
The following describes how to specify tag data and public variables in programs.
■Specifying tag data
To use tag data of a tag FB in an FBD/LD program for process control, specify the tag data as "Tag name.Tag data name".
Ex.
When using the manipulated value (MV) of the tag data (TIC001)
(1) Specify "TIC001.MV" using the tag name and tag data name of the tag data.
■Specifying public variables
To use a public variable of a tag FB in an FBD/LD program for process control, specify the public variable as "FB instance
name.Public variable name".
Ex.
When using the input high limit (IN_NMAX) of the tag FB (TIC001_FB)
(2) Specify "TIC001_FB.IN_NMAX" using the FB instance name and member name of the tag FB.
(2)
2 PROCEDURE BEFORE USING PROCESS CONTROL FUNCTION BLOCK
(1)
2.4 Editing an FBD/LD Program for Process Control
2
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