Mitsubishi Electric MELSEC Q Series User Manual page 106

5
PRE-OPERATION PROCEDURES
(3) Tag names
5
- 5 5.2 Pre-Operation Procedures
5.2.1 Consideration before configuring the EtherNet/IP network
Name the tags that were considered in (2) in this section.
(a) Number of characters in a tag name
Up to 100 alphanumeric characters can be used for each tag name.
To use a tag name with 41 or more characters, the setting in "Add Own Nic"
window is required. (
Nic" window)
The availability of a tag name with 41 or more characters differs depending on the
version of the EtherNet/IP module and Utility Package. (
and enhanced Functions)
(b) Tag name
In the EtherNet/IP network, communications are available only among devices
with the same name.
Since each Tag communication is identified by its tag name, the name cannot be
duplicated with that of any other communication.
To avoid tag names from duplicating, consider tag names of the entire EtherNet/IP
network in advance.
EtherNet/IP module
TagName1
TagName2
TagName3
Figure 5.5 Considering tag names
POINT
If the IP address ("IP Address (Destination)") of the connected device is different,
the same Tag name can be assigned.
Section 7.9.1 (1) Display and settings of the "Add Own
Target device 1
TagName2
TagName3
TagName1
Target device 2
TagName2
TagName3
Appendix 5 Added