Rules for Child Tags
The following optimizations and considerations should be heeded when you are using parent and child tags in your application:
- When structuring a parent and child tags, it is good practice to configure the parent with only those parameters that are necessary to define what is unique for the station (i.e. the parent should have enough parameters to cover variants in the children). The child tags will then have the common parameters defined.
- Don't launch tags that you do not need. If stations don't use all, launch only the ones required. For example, some stations may have 3 pumps, but others only 2.
- Child tags that are I/O tags do count towards the tag limit as defined by your VTScada license.