profile may be selected by depressing the profile selection button 90 selection of the save button again may then save the settings to the selected profile furthermore an indicator 186 may signal to the operator that the portable memory unit is being accessed similar to the busy indicator 182 fig6 the indicator 186 may be illuminated when data is being transferred via the memory interface 174 fig8 is a flow chart illustrating an exemplary profile hierarchy 188 that may be associated with the profile selectors 36 and 90 of the exemplary interfaces 26 and 32 illustrated in fig6 7 in the illustrated embodiments the user may select a user process profile 190 by selecting one of the profile selectors 36 fig6 or depressing the profile selection button 90 fig7 until the desired profile number is selected as described above with respect to fig5 default welding parameters are automatically recalled the first time the profile 190 is selected any changes made while a given profile 190 is selected may be automatically or manually saved such that they may be recalled at a later time by simply selecting that profile 190 again within the profile 190 the user may select between a stick welding process 192 a tig welding process 194 a left gun process 196 or a right gun process 198 additionally a trigger select option 200 may enable the profile 190 to be selected via the trigger on the torch or gun e g the right and left welding guns 18 and 20 the stick welding process 192 may include selection of either an exx10 electrode 202 or an exx18 electrode 204 for each electrode 202 and 204 amperage 206 and 208 may be set respectively likewise in the tig welding process an amperage 210.