Does the HI 3030 have a totalizer option?

The HI 3030 does not have a Totalizer option. The unit is designed as an interface between the scale and the PLC using one of the various communication options available from Hardy Process Solutions. Normally you would create a Totalizer in the PLC.
However, if you needed to create a Totalizer, you may be able to do that in mapping.  Check out the associated question/answers to get an idea of the mapping involved to do this. This is inforamtion is also found in another WebTech Knowledge base answer ID 1484.  Search using 1484 for the artical.