Getting Started > Upgrading to CitectSCADA v7.20 > Migration Tool > Inserting new local variables
Inserting new local variables

When the Migration Tool runs, a local variable record will be inserted for each identified memory variable, and the variable data will be copied into the new local variable.

Local variables have fewer fields than variables; the following table shows the mapping from variable to local variable when copying their data.

Variable Tag parameter or constant value Local variable parameter

Variable Tag name


Data Type

Date Type


Array Size

Eng. Zero Scale

Zero Scale

Eng. Full Scale

Full Scale



With the exception of the Array Size, which has been introduced in version 7.0 exclusively for local variables, every field receives it's value from the same or similar field.

See Also