Mitsubishi Electric MELSEC Q Series User Manual page 105

5
PRE-OPERATION PROCEDURES
(b) Setting auto refresh for each input/output area or not setting auto refresh
Increasing the data size of
EtherNet/IP
module
U0\G0
5 words
U0\G5
9 words
U0\G14
7 words
Figure 5.4 Setting auto refresh for each input/output area or not setting auto refresh
POINT
Set Tag No.1 as a reserved tag and create Tag No.4 as shown in the Figure 5.4.
Buffer memory addresses for Tag No.2 and Tag No.3 will remain unchanged
because the data sizes are not changed.
The sequence program can be modified only by changing the following items of
Tag No.1.
• Read or write size
• Buffer memory addresses, that are reallocated due to Tag No. change from 1
to 4
Example: Input Area (Un\G0 to Un\G4095), Operation status (Un\G27392 to
Un\G27903), etc.
from 5 words to 10 words
Tag No.1
Tag name: Data1
Tag No.2
Tag No.3
Auto refresh settings for each tag can be set in Tag Parameter.
Section 7.9.2 (2) Display and settings of the "Producer Tag" window
Section 7.9.3 (2) Display and settings of the "Consumer Tag" window
Section 7.9.4 (2) Display and settings of the "Message Tag" window
Auto refresh settings for each input/output area can be set in Refresh Parameter.
Section 7.9.7 "Refresh Parameter" window
5.2.1 Consideration before configuring the EtherNet/IP network
EtherNet/IP
module
5 words
U0\G0
Tag name: Rsv_Data
(Reserved Tag)
U0\G5
9 words
U0\G14
7 words
U0\G21
10 words
Tag name: Data1
Set Tag No.1 as a reserved tag, and create Tag No.4. Because
buffer memory addresses for Tag No.2 and No.3 are not changed,
program modification steps can be reduced.
5.2 Pre-Operation Procedures
Tag No.1
Rename
the tag
Tag No.2
Tag No.3
Set the same
Tag No.4
Tag name as
used before.
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