Omron NTXS Manual page 56

Using NTXS Software
Select the type of Product and then click OK to start the Application.
Steps for creating a new application are as follows:
1) Start a new project using either File Menu or Tool section New command.
2) Define Unit Settings.
3) Define Network Configuration for selected unit and PLCs.
4) Define the tags in the Tag database required for the project / application.
4) Define the screens.
5) Define Power-on, Global and Screen tasks.
6) Save your application.
7) Download firmware to the unit.
8) Download your application to the unit.
Tag Database
This is the central database for the tags which need to be used in the application. Once the tags are
defined (as register or coils) and their attributes selected, the tags can be used in the application on
screens, tasks, alarms etc. This screen helps you to define Tags associated with defined Nodes. Tag is
nothing but a Register or Coil or Individual bit of any register. Select type of the tag from Tag Type field
which is either Register or Coil Type.
If type of tag selected is register then number of bytes to be fetched varies from 1, 2, 4, etc. For display-
ing or editing float data number of bytes of tag must be 4. Tag Name field is user definable. Tag is not
added in Tag list unless you define Tag name. Once you define all these fields click on Add button for
adding Tag in Tags List Box. Block field of this tag database defines Block starting address followed by
Block size.
For example : Tag M0214 is within a block ( M0214 : 1 ) whose starting address is M0214 and block size
is 1. This block size is optimized automatically depending on address of PLC Tag.
Default block size is either 1 or 16. This setting varies from PLC to PLC.
Attributes of existing Tag can be changed by clicking on Change button. Note that Change button is
activated only if tag in the tag list is selected. Existing Tag can be removed from Tag list by clicking on
Delete button. However, user can delete the tags only if they are not used in any screen.
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