From OpenSCADAWiki
The "Configuration" section directly contains the configuration of the parameter. Set the following ones, leaving everything else unchanged:
- "To enable" indicates to need of transfer the object to the "Enabled" mode when the program is started — set this field.
- "Attributes list" contains configuration of the parameter attributes relatively to registers and bits of ModBus, you can familiar the record format in tooltip — set contents of this text field to:
R:100:r:Ti:T input R:101:r:To:T output R:102:rw:Cw:Productivity