System Total Tag Count. Describes the number of Tags configured on the SCADA Node. This is useful for Licensing diagnostics. Includes IO Tags, Constant Tags, Accumulation Tags, Calculation Tags and System Point Tags. Does not include Local Tags (i.e. screen tags). IO tags are read from PLCs, Controllers, RTUs, over communication ports. See also 18.104.22.168 IO Tags limited by License and 22.214.171.124 Internal Tags limited by license, TagLimit, TTLIOTag, TTLCTag, AccTag and CalTag.