Daniel, Why not do the following. I tested the following and it works. It should allow you to do what you are after. However, in the subroutine THIS_GUY takes on the name used in the argument list, but that's pretty standard and you should be able to make something that is normal out of it. INDEPENDENT_SEQUENCE CONSTANTS VARIABLES USER_LABELS THIS_GUY : BO0001; SUBROUTINE CHNG_OUTPUT (ITEM : B) STATEMENTS ITEM := TRUE; ENDSUBROUTINE STATEMENTS CALL CHNG_OUTPUT (THIS_GUY); ENDSEQUENCE _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave