From OpenSCADAWiki
In addition to the basic configuration of the parameter it is necessary to configure the attached template (Fig.4.2.6). Configuration tab of the template appears in the parameter's mode "Enabled". To enable the parameter it is possible by the previously enabling the controller object. The flag "Show attributes" allows you to set apart each link (Fig.4.2.7). Since we in the template forcibly described the links format as "Parameter|Ti", we can establish all three links by simply pointing the address to the parameter in the controller object ModBus. Specify-select the address "ModBus.CM101.AT101_1" and "ModBus.CM101.AT101_2" in the appropriate parameters.