Adobe Lifecycle Designer/SAP Interactive Forms by Adobe code128 barcode embedded (TAB) Control char

We want to create a code128 barcode containig two values separated by tabulator.

SAP ABAP and the Adobe Lifecycle Designer are running under Unicode.

In this article

https://help.adobe.com/en_US/livecycle/10.0/DesignerHelp/WS107c29ade9134a2c-f4af82312a7debfdbd-8000.html#WS107c29ade9134a2c-f4af82312a7debfdbd-7fff

ADOBE desribes the 

Encoding non-printing characters in barcode data

But only FNC1 to FNC3, SHIFT, Change to/Start in Subset A B C ers listed - which I do not understand at all.

What will the string look like with two values (say '12345' and '6789) separated by horizontal Tab. Hex09 will not work as Unicode only accepts 2-byte-Characters.

Thank you for any help.

Best regards

Clemens