diff --git a/site_ansto/instrument/config/environment/sct_syr.tcl b/site_ansto/instrument/config/environment/sct_syr.tcl
index 095cc989..326487b1 100755
--- a/site_ansto/instrument/config/environment/sct_syr.tcl
+++ b/site_ansto/instrument/config/environment/sct_syr.tcl
@@ -468,7 +468,7 @@ sct print "halt $tc_root"
 proc createNode {scobj_hpath sct_controller cmdGroup varName readable writable nexus gumtree\
   drivable dataType permission rdCmd rdFunc wrCmd\
   wrFunc allowedValues klass} {
-
+debug_log "createNode cmdGroup = $cmdGroup"
   set catch_status [ catch {
     set ns "[namespace current]"
     set nodeName "$scobj_hpath/$cmdGroup/$varName"
@@ -568,11 +568,11 @@ debug_log "Registering node $nodeName for write callback"
       }
 
       set num_pumps 2
-      for {set i 0} { i < $num_pumps } { incr i } {
+      for {set i 0} { $i < $num_pumps } { incr i } {
         set cmdGroup "Pump[set i]"
         hfactory $scobj_hpath/[set cmdGroup] plain spy none
         foreach {cmdGroup varName readable writable nexus gumtree drivable dataType permission rdCmd rdFunc wrCmd wrFunc allowedValues} $deviceCommand {
-          createNode $scobj_hpath $sct_controller $cmdGroup $varName $readable $writable $nexus $gumtree $drivable $dataType $permission $rdCmd $rdFunc $wrCmd $wrFunc $allowedValues $klass
+          createNode $scobj_hpath $sct_controller ${cmdGroup}$i $varName $readable $writable $nexus $gumtree $drivable $dataType $permission $rdCmd $rdFunc $wrCmd $wrFunc $allowedValues $klass
         }
       }