Mitsubishi Electric MELSEC Q Series User Manual page 91

4
FUNCTION
(3) Parameter setting and program example
Complete the setting of Class3 Tag parameter in Utility Package.
Select the "Message" window on the "Setting" tab and set the details in the "Message
Tag" window that is displayed when a blank line in the Tag Parameter list is double-
clicked.
Figure 4.15 Window for Class3/UCMM Tag parameter setting of Utility Package
For details, refer to the following.
(4) Reserved tag
Tags can be reserved.
A tag set as a reserved tag is not used to perform Tag communication. It is used only
to reserve input area and output area.
(a) Application
(b) Setting method
(c) Checking reserved tag settings in the buffer memory
Section 7.9.4 (2) Display and settings of the "Message Tag" window
CHAPTER 8 PROGRAMMING
Adding a tag (canceling the reserved tag setting) does not require a sequence
program change since input area and output area remain unchanged.
A sequence program change is not necessary by setting (not deleting) the tag as
a reserved tag when a tag is no longer used.
Select "Reserved Tag" in the "Message Tag" window of Utility Package. (
Parameter setting and program example in this section)
The reserved tag setting status can be checked in Reserved
tag(Class3/UCMM)(Un\G27216 to Un\G27231).
4.2 Tag Communication Function
4.2.2 Class3 Tag communication
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