diff --git a/bbb/bbb.v b/bbb/bbb.v
index 02fe7074..48ef9eb8 100755
--- a/bbb/bbb.v
+++ b/bbb/bbb.v
@@ -245,6 +245,7 @@ isnupdot1sd               integer /0/  #=0, use 2-pt ndot for (n*up)_dot;
 isphicore0		  integer /0/  #=1 sets phi=phi_mp in core if isphion=1
 is_z0_imp_const           integer /0/  #=0 use hydr Keilhacker;=1 z0_imp_const
 z0_imp_const              real    /1./ #z0 in therm force if is_z0_imp_const=1
+upbparadir                integer /0/ # Internal multiplicative switch for up equation
 					
 ***** Model_choice restart:
 #Flags for choosing one or another calculation of a part of the model
diff --git a/bbb/odesetup.m b/bbb/odesetup.m
index d14d343f..a5fad8dd 100755
--- a/bbb/odesetup.m
+++ b/bbb/odesetup.m
@@ -27,6 +27,7 @@
       Use(Lsode)    # neq,jacflg,jpre,ipar,ismmaxuc,mmaxu
       Use(Solver_work_arrays)   # liw,lrw,iwork
       Use(Grid)     # inewton
+      Use(Comflxgrd) # cpasma
       Use(Interp)   # nxold,nyold
       Use(Decomp)   # ubw,lbw
       Use(Jacobian)     # neqp1,nnzmx
@@ -57,7 +58,7 @@ cc      Use(Rccoef)
 
 * --  local variables
       integer lda, lenk, ngspon, nispon, nuspon, ntgspon, ifld, isor, id
-      character*60 runid
+      character*60 runidint
       integer iprt_tfcx_warn
       data iprt_tfcx_warn/1/
       #Former Aux module variables
@@ -172,13 +173,20 @@ call gchange("Xpoint_indices",0)  #needed to allocate ixrb
             endif
          endif
          call gchange("Xpoint_indices",0)
-         call readgridpars(trim(GridFileName),runid)  #define/redefine iysptrx1 etc
+         call readgridpars(trim(GridFileName),runidint)  #define/redefine iysptrx1 etc
          nx = nxm - abs(nxomit)
          ny = nym - nyomitmx
       endif	# end if-test on gengrid
       endif	# end if-test on newgeo
       endif	# end if-test on isallloc
 
+c     Check the direction of the toroidal current
+      if (cpasma .lt. 0) then
+        upbparadir = -1
+      else
+        upbparadir = 1
+      endif
+
 
 c ... Check that number neutral gas species is not larger than ngspmx
       if (ngsp .gt. ngspmx) then