Go to the Data source page.
To add a variable to the device, click the button allowing you to view the list of its variables:
Click the Add a variable button.
The form adapts according to the protocol of the chosen equipment.
The tag name must contain only lowercase or uppercase letters and digits.
All the information is mandatory.
The following format types are available:
Boolean (BOOL);
16-bit integer (INT);
32-bit integer (DINT);
Unsigned 16-bit word (WORD);
Unsigned 32-bit word (DWORD);
Floating point number (FLOAT).
For a device using the ModbusTCP protocol, specify the variable function type from among the following choices:
Coil status;
Input status;
Holding registers;
Input registers
When you save the form, you go back to the Variables list page and the new variable will have been added.