diff --git a/asynnet.c b/asynnet.c
index d59c854d..a30e209a 100644
--- a/asynnet.c
+++ b/asynnet.c
@@ -45,7 +45,7 @@
 #define MAXCONNECTIONS   1024
 #define RBUFFERSIZE       262144 /* 256kb */
 #define WBUFFERSIZE       20*262144
-/* #define WBUFFERSIZE       100*262144 /*
+/* #define WBUFFERSIZE       100*262144 */
 /*--------------------------------------------------------------------------*/
 typedef struct {
   int socket;
diff --git a/commandlog.c b/commandlog.c
index e6439ec7..50192665 100644
--- a/commandlog.c
+++ b/commandlog.c
@@ -536,7 +536,7 @@ int CommandLog(SConnection * pCon, SicsInterp * pSics, void *pData,
       if (iCompact > 0)
         iIntervall = 0;
     }
-    SCPrintf(pCon, eValue, "%s.compact [sec] = %d", argv[0], iCompact);
+    SCPrintf(pCon, eValue, "%s.compact [sec] = %d", argv[0], (int)iCompact);
     return 1;
   } else if (strcmp(argv[1], "close") == 0) {   /* close command */
     fclose(fd);
diff --git a/counter.c b/counter.c
index 0c820901..b5d0cea6 100644
--- a/counter.c
+++ b/counter.c
@@ -1142,7 +1142,7 @@ int CountAction(SConnection * pCon, SicsInterp * pSics, void *pData,
     iRet = self->pDriv->Get(self->pDriv, PaRes.Arg[0].text,
                             PaRes.Arg[1].iVal, &fVal);
     if (iRet == 1) {
-      snprintf(pBueffel,255, "%s.%s %d = %f", argv[0], PaRes.Arg[0].text,
+      snprintf(pBueffel,255, "%s.%s %s = %f", argv[0], PaRes.Arg[0].text,
               PaRes.Arg[1].text, fVal);
       SCWrite(pCon, pBueffel, eValue);
       return 1;
diff --git a/diffscan.c b/diffscan.c
index 6334b0c3..284cb8bb 100644
--- a/diffscan.c
+++ b/diffscan.c
@@ -376,7 +376,7 @@ static int DiffScanTask(void *pData)
   status = GetDrivablePosition(pVar->pObject, self->scanObject->pCon,
                                &fPos);
   if (status == 0) {
-	ReleaseCountLock(pCount->pCountInt);
+    ReleaseCountLock(pCount->pCountInt);
     return finish;
   }
   AppendScanVar(pVar, fPos);
@@ -396,21 +396,21 @@ static int DiffScanTask(void *pData)
     rawCount = data->lCount;
     rawMon = data->Monitors[self->scaleMonitor - 1];
     if(rawMon > 100){
-    	self->normalizationScale = rawMon;
-    	traceSys("diffscan","START:normalizing on %d, scale monitor is %d",
-    			self->normalizationScale, self->scaleMonitor);
+      self->normalizationScale = rawMon;
+      traceSys("diffscan","START:normalizing on %d, scale monitor is %d",
+          self->normalizationScale, self->scaleMonitor);
     } else {
-    	traceSys("diffscan","START:normalization count  %d, on scale monitor is %d and is to low",
-    			rawMon, self->scaleMonitor);
-    	SCWrite(self->scanObject->pCon,"WARNING: Skipping first point because of low count rate", eWarning);
-    	return finish;
+      traceSys("diffscan","START:normalization count  %ld, on scale monitor is %d and is to low",
+          rawMon, self->scaleMonitor);
+      SCWrite(self->scanObject->pCon,"WARNING: Skipping first point because of low count rate", eWarning);
+      return finish;
     }
   } else {
     if (data->Monitors[self->scaleMonitor - 1] -
         self->last.Monitors[self->scaleMonitor - 1] < 5) {
       SCWrite(self->scanObject->pCon, "WARNING: low count rate", eLog);
-      traceSys("diffscan","RUN:low monitor difference from %d to %d",data->Monitors[self->scaleMonitor-1],
-    		  self->last.Monitors[self->scaleMonitor -1]);
+      traceSys("diffscan","RUN:low monitor difference from %ld to %ld",data->Monitors[self->scaleMonitor-1],
+          self->last.Monitors[self->scaleMonitor -1]);
     }
     rawCount = data->lCount;
     rawMon = data->Monitors[self->scaleMonitor - 1];
@@ -441,8 +441,8 @@ static int DiffScanTask(void *pData)
     ReleaseHdbValue(&v);
   }
   InvokeCallBack(self->scanObject->pCall, SCANPOINT, self->scanObject);
-  traceSys("diffscan","RUN: pos, count, rawcount, rawmon: %f, %d, %d, %d",
-		  fPos, countValue, rawCount, rawMon);
+  traceSys("diffscan","RUN: pos, count, rawcount, rawmon: %f, %f, %ld, %ld",
+      fPos, countValue, rawCount, rawMon);
 
   /*
      check for interrupt
@@ -455,7 +455,7 @@ static int DiffScanTask(void *pData)
   }
 
   if(finish == 0) {
-	  ReleaseCountLock(pCount->pCountInt);
+    ReleaseCountLock(pCount->pCountInt);
   }
   
   return finish;
diff --git a/nxxml.c b/nxxml.c
index 12f4de16..131b3afe 100644
--- a/nxxml.c
+++ b/nxxml.c
@@ -779,7 +779,7 @@ NXstatus  NXXputdatatable (NXhandle fid, const void *data){
 }
 
 /*------------------------------------------------------------------------*/
-NXstatus  NXXputdata (NXhandle fid, void *data){
+NXstatus  NXXputdata (NXhandle fid, const void *data){
   pXMLNexus xmlHandle = NULL;
   mxml_node_t *userData = NULL;
   mxml_node_t *current = NULL;
@@ -1074,8 +1074,8 @@ NXstatus  NXXputslabtable (NXhandle fid, const void *data,
     return NX_OK;
 }
 /*----------------------------------------------------------------------*/
-NXstatus  NXXputslab64 (NXhandle fid, void *data,
-				   int64_t iStart[], int64_t iSize[]){
+NXstatus  NXXputslab64 (NXhandle fid, const void *data,
+				   const int64_t iStart[], const int64_t iSize[]){
   
   pXMLNexus xmlHandle = NULL;
   mxml_node_t *userData = NULL;
@@ -1295,7 +1295,7 @@ static char *formatAttributeData(const void *data, int datalen, int iType){
   return number;
 }
 /*---------------------------------------------------------------------*/
-NXstatus  NXXputattr (NXhandle fid, CONSTCHAR *name,  void *data,
+NXstatus  NXXputattr (NXhandle fid, CONSTCHAR *name,  const void *data,
 				   int datalen, int iType){
   char buffer[256];
   pXMLNexus xmlHandle = NULL;
diff --git a/nxxml.h b/nxxml.h
index ee7e9ece..03c09a2c 100644
--- a/nxxml.h
+++ b/nxxml.h
@@ -44,15 +44,15 @@ NXstatus  NXXmakedata64 (NXhandle fid,
 				    int rank, int64_t dimensions[]);
 NXstatus  NXXopendata (NXhandle fid, CONSTCHAR *name);
 NXstatus  NXXclosedata (NXhandle fid);
-NXstatus  NXXputdata (NXhandle fid, void *data);
+NXstatus  NXXputdata (NXhandle fid, const void *data);
 NXstatus  NXXgetdata (NXhandle fid, void *data);
 NXstatus  NXXgetinfo64 (NXhandle fid, int *rank, 
 				   int64_t dimension[], int *iType);
-NXstatus  NXXputslab64 (NXhandle fid, void *data,
-				   int64_t iStart[], int64_t iSize[]);
+NXstatus  NXXputslab64 (NXhandle fid, const void *data,
+				   const int64_t iStart[], const int64_t iSize[]);
 NXstatus  NXXgetslab64 (NXhandle fid, void *data, 
 				   const int64_t iStart[], const int64_t iSize[]);
-NXstatus  NXXputattr (NXhandle fid, CONSTCHAR *name, void *data,
+NXstatus  NXXputattr (NXhandle fid, CONSTCHAR *name, const void *data,
 				   int datalen, int iType);
 NXstatus  NXXgetattr (NXhandle fid, char *name, 
 				   void *data, int* datalen, int* iType);
diff --git a/sansbc.c b/sansbc.c
index 985d70ea..e40e1e44 100644
--- a/sansbc.c
+++ b/sansbc.c
@@ -204,7 +204,7 @@ static int StatCmd(pSICSOBJ self, SConnection *pCon, pHdb commandNode,
 	}
 	average = (double)sum/(double)length;
 	
-	SCPrintf(pCon,eValue,"Stat:sum,max,min,av = %d,%d,%d,%f", sum,max,min,average);
+	SCPrintf(pCon,eValue,"Stat:sum,max,min,av = %ld,%ld,%ld,%f", sum,max,min,average);
 	return 1;
 }
 
diff --git a/simidx.h b/simidx.h
index 17668ecc..b29d14df 100644
--- a/simidx.h
+++ b/simidx.h
@@ -85,6 +85,7 @@ int SimIdxRun();
  * \param errCode pointer to an integer error code
  * \param error A text buffer to hold a description of the error
  * \param errLen The length of error
+ */
 void SimIdxGetError(int *errCode, char *error, int errLen);
 
 /**
diff --git a/site_ansto/instrument/bilby/config/motors/motor_configuration.tcl b/site_ansto/instrument/bilby/config/motors/motor_configuration.tcl
index eae91283..38e8926b 100644
--- a/site_ansto/instrument/bilby/config/motors/motor_configuration.tcl
+++ b/site_ansto/instrument/bilby/config/motors/motor_configuration.tcl
@@ -1,11 +1,15 @@
 # @file Loads the generated_motor_configuration.tcl file which is created by util/genmotconf.tcl from CSV files.
 fileeval config/motors/generated_motor_configuration.tcl
+fileeval config/motors/sct_shutters.tcl
+fileeval config/motors/sct_tank.tcl
+add_shutters shutters aqadapter mc4
+add_tank tank aqadapter mc8
 # Motors which should not be driven should be set as "fixed" here.
 # Configurable virtual motors can be defined here.
 # Eg, mot fixed 1
 # Define "proc motor_set_sobj_attributes {}" if we need to define extra sicslist attributes for some motors.
 
-for {set n 1} {$n < 8} {incr n} {
+for {set n 1} {$n <= 8} {incr n} {
   make_coll_motor_1 c$n c$n col$n count
   make_coll_motor_1 a$n a$n ap$n  count
 }
diff --git a/site_ansto/instrument/bilby/config/motors/sct_shutters.tcl b/site_ansto/instrument/bilby/config/motors/sct_shutters.tcl
new file mode 100644
index 00000000..383e71be
--- /dev/null
+++ b/site_ansto/instrument/bilby/config/motors/sct_shutters.tcl
@@ -0,0 +1,245 @@
+# Generated driver for shutters
+# vim: tabstop=8  softtabstop=2  shiftwidth=2  nocindent  smartindent
+#
+
+namespace eval ::scobj::shutters {
+  set debug_threshold 0
+}
+
+proc ::scobj::shutters::debug_log {debug_level debug_string} {
+  if {${debug_level} >= ${::scobj::shutters::debug_threshold}} {
+    set fd [open "/tmp/shutters.log" "a"]
+    set line "[clock format [clock seconds] -format "%T"] ${debug_string}"
+    puts ${fd} "${line}"
+    close ${fd}
+  }
+}
+
+# check function for hset change
+proc ::scobj::shutters::checkrange {tc_root} {
+  debug_log 1 "checkrange tc_root=${tc_root} sct=[sct] target=[sct target]"
+  set setpoint [sct target]
+  if { [hpropexists [sct] lowerlimit] } {
+    set lolimit [sct lowerlimit]
+  } else {
+    # lowerlimit not set, use target
+    set lolimit [sct target]
+  }
+  if { [hpropexists [sct] upperlimit] } {
+    set hilimit [sct upperlimit]
+  } else {
+    # upperlimit not set, use target
+    set hilimit [sct target]
+  }
+  if { ${setpoint} < ${lolimit} || ${setpoint} > ${hilimit} } {
+    error "setpoint ${setpoint} violates limits (${lolimit}..${hilimit}) on [sct]"
+  }
+  return OK
+}
+
+# function to request the read of a parameter on a device
+proc ::scobj::shutters::getValue {tc_root nextState cmd_str} {
+  debug_log 1 "getValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
+  if { [hpropexists [sct] geterror] } {
+    hdelprop [sct] geterror
+  }
+  set cmd "${cmd_str}"
+  debug_log 1 "getValue sct send ${cmd}"
+  sct send "${cmd}"
+  return ${nextState}
+}
+
+# function to check the write parameter on a device
+proc ::scobj::shutters::noResponse {tc_root} {
+  debug_log 1 "noResponse tc_root=${tc_root} sct=[sct] resp=[sct result]"
+  return "idle"
+}
+
+# function to parse the read of a parameter on a device
+proc ::scobj::shutters::read_switch_pair {tc_root} {
+  debug_log 1 "read_switch_pair tc_root=${tc_root} sct=[sct] result=[sct result]"
+  if { [hpropexists [sct] geterror] } {
+    hdelprop [sct] geterror
+  }
+  set data [sct result]
+  set nextState "idle"
+  if {[string equal -nocase -length 7 ${data} "ASCERR:"]} {
+    # the protocol driver has reported an error
+    sct geterror "${data}"
+    return -code error "[sct geterror]"
+  }
+# hook code starts
+  if { [string equal -nocase -length 1 "${data}" "?"] } {
+    sct geterror "Galil error in: '${data}'"
+  } else {
+    set data_list [split [string trim "${data}"]]
+    if { [llength ${data_list}]  > 2 && [lindex ${data_list} end] == ":" } {
+      set data_list [lrange ${data_list} 0 1]
+    }
+    if { [llength ${data_list}] == 2 } {
+      set left [expr [lindex ${data_list} 0]]
+      set right [expr [lindex ${data_list} 1]]
+      if  { ${left} == 1 && ${right} == 0 } { # open
+        set data "out"
+      } elseif  { ${left} == 0 && ${right} == 1 } { # closed
+        set data "in"
+      } else { # indeterminate
+        set data "moving"
+      }
+    } else {
+      sct geterror "Syntax error in: '${data}'=>'${data_list}'"
+    }
+  }
+# hook code ends
+  if { [hpropexists [sct] geterror] } {
+    debug_log 1 "[sct] error: [sct geterror]"
+    return -code error "[sct geterror]"
+  }
+  if { ${data} != [sct oldval] } {
+    debug_log 1 "[sct] changed to new:${data}, from old:[sct oldval]"
+    sct oldval ${data}
+    sct update ${data}
+    sct utime readtime
+    }
+  return ${nextState}
+}
+
+# function to write a parameter value on a device
+proc ::scobj::shutters::setValue {tc_root nextState cmd_str} {
+  debug_log 1 "setValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
+  if { [hpropexists [sct] geterror] } {
+    hdelprop [sct] geterror
+  }
+  set par [sct target]
+  set cmd "${cmd_str}${par}"
+  debug_log 1 "setValue sct send ${cmd}"
+  sct send "${cmd}"
+  return ${nextState}
+}
+
+# function to write a parameter value on a device
+proc ::scobj::shutters::write_switch {tc_root nextState cmd_str} {
+  debug_log 1 "write_switch tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
+  if { [hpropexists [sct] geterror] } {
+    hdelprop [sct] geterror
+  }
+  set par [sct target]
+  set cmd "${cmd_str}${par}"
+# hook code starts
+  if { [string equal -nocase -length 2 "${par}" "in"] } {
+    set cmd "SB${cmd_str}"
+  } elseif { [string equal -nocase -length 2 "${par}" "out"] } {
+    set cmd "CB${cmd_str}"
+  } else {
+    sct geterror "Value error: '${par}' not in ('in', 'out')"
+  }
+# hook code ends
+  if { [hpropexists [sct] geterror] } {
+    debug_log 1 "[sct] error: [sct geterror]"
+    return -code error "[sct geterror]"
+  }
+  debug_log 1 "write_switch sct send ${cmd}"
+  sct send "${cmd}"
+  return ${nextState}
+}
+
+proc ::scobj::shutters::mk_sct_shutters { sct_controller name } {
+  debug_log 1 "mk_sct_shutters for ${name}"
+  set ns "[namespace current]"
+  set catch_status [ catch {
+
+    MakeSICSObj ${name} SCT_OBJECT
+
+    sicslist setatt ${name} klass collimator
+    sicslist setatt ${name} long_name ${name}
+
+    set scobj_hpath /sics/${name}
+
+    hfactory ${scobj_hpath}/fast_shutter plain user text
+    hsetprop ${scobj_hpath}/fast_shutter read ${ns}::getValue ${scobj_hpath} read_switch_pair {MG @IN[5], @IN[6]}
+    hsetprop ${scobj_hpath}/fast_shutter read_switch_pair ${ns}::read_switch_pair ${scobj_hpath}
+    hsetprop ${scobj_hpath}/fast_shutter control true
+    hsetprop ${scobj_hpath}/fast_shutter data true
+    hsetprop ${scobj_hpath}/fast_shutter mutable false
+    hsetprop ${scobj_hpath}/fast_shutter nxsave true
+    hsetprop ${scobj_hpath}/fast_shutter oldval UNKNOWN
+    hsetprop ${scobj_hpath}/fast_shutter klass "collimator"
+    hsetprop ${scobj_hpath}/fast_shutter nxalias "fast_shutter"
+    hsetprop ${scobj_hpath}/fast_shutter sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/fast_shutter type "part"
+
+    hfactory ${scobj_hpath}/rough_100 plain user text
+    hsetprop ${scobj_hpath}/rough_100 read ${ns}::getValue ${scobj_hpath} read_switch_pair {MG @IN[15], @IN[16]}
+    hsetprop ${scobj_hpath}/rough_100 read_switch_pair ${ns}::read_switch_pair ${scobj_hpath}
+    hsetprop ${scobj_hpath}/rough_100 write ${ns}::write_switch ${scobj_hpath} noResponse {11}
+    hsetprop ${scobj_hpath}/rough_100 noResponse ${ns}::noResponse ${scobj_hpath}
+    hsetprop ${scobj_hpath}/rough_100 check ${ns}::checkrange ${scobj_hpath}
+    hsetprop ${scobj_hpath}/rough_100 control true
+    hsetprop ${scobj_hpath}/rough_100 data true
+    hsetprop ${scobj_hpath}/rough_100 mutable false
+    hsetprop ${scobj_hpath}/rough_100 nxsave true
+    hsetprop ${scobj_hpath}/rough_100 values in,out
+    hsetprop ${scobj_hpath}/rough_100 oldval UNKNOWN
+    hsetprop ${scobj_hpath}/rough_100 klass "collimator"
+    hsetprop ${scobj_hpath}/rough_100 nxalias "rough_100"
+    hsetprop ${scobj_hpath}/rough_100 sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/rough_100 type "part"
+
+    hfactory ${scobj_hpath}/rough_40 plain user text
+    hsetprop ${scobj_hpath}/rough_40 read ${ns}::getValue ${scobj_hpath} read_switch_pair {MG @IN[13], @IN[14]}
+    hsetprop ${scobj_hpath}/rough_40 read_switch_pair ${ns}::read_switch_pair ${scobj_hpath}
+    hsetprop ${scobj_hpath}/rough_40 write ${ns}::write_switch ${scobj_hpath} noResponse {10}
+    hsetprop ${scobj_hpath}/rough_40 noResponse ${ns}::noResponse ${scobj_hpath}
+    hsetprop ${scobj_hpath}/rough_40 check ${ns}::checkrange ${scobj_hpath}
+    hsetprop ${scobj_hpath}/rough_40 control true
+    hsetprop ${scobj_hpath}/rough_40 data true
+    hsetprop ${scobj_hpath}/rough_40 mutable false
+    hsetprop ${scobj_hpath}/rough_40 nxsave true
+    hsetprop ${scobj_hpath}/rough_40 values in,out
+    hsetprop ${scobj_hpath}/rough_40 oldval UNKNOWN
+    hsetprop ${scobj_hpath}/rough_40 klass "collimator"
+    hsetprop ${scobj_hpath}/rough_40 nxalias "rough_40"
+    hsetprop ${scobj_hpath}/rough_40 sdsinfo "::nexus::scobj::sdsinfo"
+    hsetprop ${scobj_hpath}/rough_40 type "part"
+
+    hsetprop ${scobj_hpath} data "true"
+    hsetprop ${scobj_hpath} nxsave "true"
+
+    if {[SplitReply [motor_simulation]]=="false"} {
+      ${sct_controller} poll ${scobj_hpath}/fast_shutter 1
+      ${sct_controller} poll ${scobj_hpath}/rough_100 1
+      ${sct_controller} poll ${scobj_hpath}/rough_40 1
+      ${sct_controller} write ${scobj_hpath}/rough_100
+      ${sct_controller} write ${scobj_hpath}/rough_40
+    }
+    hsetprop ${scobj_hpath} klass collimator
+# hook code starts
+# hook code ends
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message} "in ${ns}::mk_sct_shutters"
+}
+
+namespace eval ::scobj::shutters {
+  namespace export debug_log
+  namespace export mk_sct_shutters
+}
+
+proc add_shutters {name IP port} {
+  set ns "::scobj::shutters"
+  ${ns}::debug_log 1 "add_shutters ${name} ${IP} ${port}"
+  if {[SplitReply [motor_simulation]]=="false"} {
+    if {[string equal -nocase "aqadapter" "${IP}"]} {
+      ${ns}::debug_log 1 "makesctcontroller sct_${name} aqadapter ${port}"
+      makesctcontroller sct_${name} aqadapter ${port}
+    } else {
+      ${ns}::debug_log 1 "makesctcontroller sct_${name} dmc2280 ${IP}:${port}"
+      makesctcontroller sct_${name} dmc2280 ${IP}:${port}
+    }
+  }
+  ${ns}::debug_log 1 "mk_sct_shutters sct_${name} ${name}"
+  ${ns}::mk_sct_shutters sct_${name} ${name}
+  close ${fd}
+}
+
+puts stdout "file evaluation of sct_shutters.tcl"
+::scobj::shutters::debug_log 1 "file evaluation of sct_shutters.tcl"
diff --git a/site_ansto/instrument/bilby/config/motors/sct_tank.tcl b/site_ansto/instrument/bilby/config/motors/sct_tank.tcl
new file mode 100644
index 00000000..6aa06101
--- /dev/null
+++ b/site_ansto/instrument/bilby/config/motors/sct_tank.tcl
@@ -0,0 +1,208 @@
+# Generated driver for tank
+# vim: tabstop=8  softtabstop=2  shiftwidth=2  nocindent  smartindent
+#
+
+namespace eval ::scobj::tank {
+  set debug_threshold 0
+}
+
+proc ::scobj::tank::debug_log {debug_level debug_string} {
+  if {${debug_level} >= ${::scobj::tank::debug_threshold}} {
+    set fd [open "/tmp/tank.log" "a"]
+    set line "[clock format [clock seconds] -format "%T"] ${debug_string}"
+    puts ${fd} "${line}"
+    close ${fd}
+  }
+}
+
+# check function for hset change
+proc ::scobj::tank::checkrange {tc_root} {
+  debug_log 1 "checkrange tc_root=${tc_root} sct=[sct] target=[sct target]"
+  set setpoint [sct target]
+  if { [hpropexists [sct] lowerlimit] } {
+    set lolimit [sct lowerlimit]
+  } else {
+    # lowerlimit not set, use target
+    set lolimit [sct target]
+  }
+  if { [hpropexists [sct] upperlimit] } {
+    set hilimit [sct upperlimit]
+  } else {
+    # upperlimit not set, use target
+    set hilimit [sct target]
+  }
+  if { ${setpoint} < ${lolimit} || ${setpoint} > ${hilimit} } {
+    error "setpoint ${setpoint} violates limits (${lolimit}..${hilimit}) on [sct]"
+  }
+  return OK
+}
+
+# function to request the read of a parameter on a device
+proc ::scobj::tank::getValue {tc_root nextState cmd_str} {
+  debug_log 1 "getValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
+  if { [hpropexists [sct] geterror] } {
+    hdelprop [sct] geterror
+  }
+  set cmd "${cmd_str}"
+  debug_log 1 "getValue sct send ${cmd}"
+  sct send "${cmd}"
+  return ${nextState}
+}
+
+# function to check the write parameter on a device
+proc ::scobj::tank::noResponse {tc_root} {
+  debug_log 1 "noResponse tc_root=${tc_root} sct=[sct] resp=[sct result]"
+  return "idle"
+}
+
+# function to parse the read of a parameter on a device
+proc ::scobj::tank::read_switch {tc_root} {
+  debug_log 1 "read_switch tc_root=${tc_root} sct=[sct] result=[sct result]"
+  if { [hpropexists [sct] geterror] } {
+    hdelprop [sct] geterror
+  }
+  set data [sct result]
+  set nextState "idle"
+  if {[string equal -nocase -length 7 ${data} "ASCERR:"]} {
+    # the protocol driver has reported an error
+    sct geterror "${data}"
+    return -code error "[sct geterror]"
+  }
+# hook code starts
+  if { [string equal -nocase -length 1 "${data}" "?"] } {
+    sct geterror "Galil error in: '${data}'"
+  } else {
+    set data_list [split [string trim "${data}"]]
+    if { [llength ${data_list}] > 1 && [lindex ${data_list} end] == ":" } {
+      set data_list [lrange ${data_list} 0 0]
+    }
+    if { [llength ${data_list}] == 1 } {
+      set left [expr [lindex ${data_list} 0]]
+      if  { ${left} == 1 } { # open
+        set data "open"
+      } else { # closed
+        set data "closed"
+      }
+    } else {
+      sct geterror "Syntax error in: '${data}'=>'${data_list}'"
+    }
+  }
+# hook code ends
+  if { [hpropexists [sct] geterror] } {
+    debug_log 1 "[sct] error: [sct geterror]"
+    return -code error "[sct geterror]"
+  }
+  if { ${data} != [sct oldval] } {
+    debug_log 1 "[sct] changed to new:${data}, from old:[sct oldval]"
+    sct oldval ${data}
+    sct update ${data}
+    sct utime readtime
+    }
+  return ${nextState}
+}
+
+# function to write a parameter value on a device
+proc ::scobj::tank::setValue {tc_root nextState cmd_str} {
+  debug_log 1 "setValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
+  if { [hpropexists [sct] geterror] } {
+    hdelprop [sct] geterror
+  }
+  set par [sct target]
+  set cmd "${cmd_str}${par}"
+  debug_log 1 "setValue sct send ${cmd}"
+  sct send "${cmd}"
+  return ${nextState}
+}
+
+proc ::scobj::tank::mk_sct_tank { sct_controller name } {
+  debug_log 1 "mk_sct_tank for ${name}"
+  set ns "[namespace current]"
+  set catch_status [ catch {
+
+    MakeSICSObj ${name} SCT_OBJECT
+
+    sicslist setatt ${name} klass instrument
+    sicslist setatt ${name} long_name ${name}
+
+    set scobj_hpath /sics/${name}
+
+    hfactory ${scobj_hpath}/limits plain spy none
+
+    hfactory ${scobj_hpath}/limits/forward plain user text
+    hsetprop ${scobj_hpath}/limits/forward read ${ns}::getValue ${scobj_hpath} read_switch {MG _LFH}
+    hsetprop ${scobj_hpath}/limits/forward read_switch ${ns}::read_switch ${scobj_hpath}
+    hsetprop ${scobj_hpath}/limits/forward control true
+    hsetprop ${scobj_hpath}/limits/forward data true
+    hsetprop ${scobj_hpath}/limits/forward mutable false
+    hsetprop ${scobj_hpath}/limits/forward nxsave true
+    hsetprop ${scobj_hpath}/limits/forward oldval UNKNOWN
+
+    hfactory ${scobj_hpath}/limits/reverse plain user text
+    hsetprop ${scobj_hpath}/limits/reverse read ${ns}::getValue ${scobj_hpath} read_switch {MG _LRH}
+    hsetprop ${scobj_hpath}/limits/reverse read_switch ${ns}::read_switch ${scobj_hpath}
+    hsetprop ${scobj_hpath}/limits/reverse control true
+    hsetprop ${scobj_hpath}/limits/reverse data true
+    hsetprop ${scobj_hpath}/limits/reverse mutable false
+    hsetprop ${scobj_hpath}/limits/reverse nxsave true
+    hsetprop ${scobj_hpath}/limits/reverse oldval UNKNOWN
+
+    if {[SplitReply [motor_simulation]]=="false"} {
+      ${sct_controller} poll ${scobj_hpath}/limits/forward 1
+      ${sct_controller} poll ${scobj_hpath}/limits/reverse 1
+    }
+
+    hfactory ${scobj_hpath}/switches plain spy none
+
+    hfactory ${scobj_hpath}/switches/forward plain user text
+    hsetprop ${scobj_hpath}/switches/forward read ${ns}::getValue ${scobj_hpath} read_switch {MG @IN[5]}
+    hsetprop ${scobj_hpath}/switches/forward read_switch ${ns}::read_switch ${scobj_hpath}
+    hsetprop ${scobj_hpath}/switches/forward control true
+    hsetprop ${scobj_hpath}/switches/forward data true
+    hsetprop ${scobj_hpath}/switches/forward mutable false
+    hsetprop ${scobj_hpath}/switches/forward nxsave true
+    hsetprop ${scobj_hpath}/switches/forward oldval UNKNOWN
+
+    hfactory ${scobj_hpath}/switches/reverse plain user text
+    hsetprop ${scobj_hpath}/switches/reverse read ${ns}::getValue ${scobj_hpath} read_switch {MG @IN[6]}
+    hsetprop ${scobj_hpath}/switches/reverse read_switch ${ns}::read_switch ${scobj_hpath}
+    hsetprop ${scobj_hpath}/switches/reverse control true
+    hsetprop ${scobj_hpath}/switches/reverse data true
+    hsetprop ${scobj_hpath}/switches/reverse mutable false
+    hsetprop ${scobj_hpath}/switches/reverse nxsave true
+    hsetprop ${scobj_hpath}/switches/reverse oldval UNKNOWN
+
+    if {[SplitReply [motor_simulation]]=="false"} {
+      ${sct_controller} poll ${scobj_hpath}/switches/forward 1
+      ${sct_controller} poll ${scobj_hpath}/switches/reverse 1
+    }
+    hsetprop ${scobj_hpath} klass instrument
+# hook code starts
+# hook code ends
+  } catch_message ]
+  handle_exception ${catch_status} ${catch_message} "in ${ns}::mk_sct_tank"
+}
+
+namespace eval ::scobj::tank {
+  namespace export debug_log
+  namespace export mk_sct_tank
+}
+
+proc add_tank {name IP port} {
+  set ns "::scobj::tank"
+  ${ns}::debug_log 1 "add_tank ${name} ${IP} ${port}"
+  if {[SplitReply [motor_simulation]]=="false"} {
+    if {[string equal -nocase "aqadapter" "${IP}"]} {
+      ${ns}::debug_log 1 "makesctcontroller sct_${name} aqadapter ${port}"
+      makesctcontroller sct_${name} aqadapter ${port}
+    } else {
+      ${ns}::debug_log 1 "makesctcontroller sct_${name} dmc2280 ${IP}:${port}"
+      makesctcontroller sct_${name} dmc2280 ${IP}:${port}
+    }
+  }
+  ${ns}::debug_log 1 "mk_sct_tank sct_${name} ${name}"
+  ${ns}::mk_sct_tank sct_${name} ${name}
+  close ${fd}
+}
+
+puts stdout "file evaluation of sct_tank.tcl"
+::scobj::tank::debug_log 1 "file evaluation of sct_tank.tcl"
diff --git a/site_ansto/instrument/bilby/config/motors/shutters.sct b/site_ansto/instrument/bilby/config/motors/shutters.sct
new file mode 100644
index 00000000..d1f99bba
--- /dev/null
+++ b/site_ansto/instrument/bilby/config/motors/shutters.sct
@@ -0,0 +1,93 @@
+#
+# Simple driver generator for the non-motor galil controls on mc4
+# vim: ts=8 sts=2 sw=2 expandtab autoindent smartindent nocindent
+#
+driver shutters = {
+  usecreatenode = false
+  vendor = galil; device = mc4; protocol = dmc2280;
+  class = collimator
+  simulation_group = motor_simulation
+#
+# Unnamed group has variables at device level
+#
+#
+# The named group is at the device level, variables below that
+#
+  group = {
+    type = text
+    priv = user
+    group_property 'data' = 'true'
+    group_property 'nxsave' = 'true'
+    property 'type' = 'part'
+    property 'klass' = 'collimator'
+    property 'sdsinfo' = '::nexus::scobj::sdsinfo'
+    var fast_shutter = {
+      readable = 1
+      read_command = 'MG @IN[5], @IN[6]'
+      read_function = read_switch_pair
+      property 'nxalias' = 'fast_shutter'
+    }
+    var rough_40 = {
+      readable = 1;
+      read_function = read_switch_pair;
+      read_command = 'MG @IN[13], @IN[14]'
+      writeable = 1
+      write_function = write_switch;
+      write_command = '10'
+      allowed = 'in,out'
+      property 'nxalias' = 'rough_40'
+    }
+    var rough_100 = {
+      readable = 1;
+      read_function = read_switch_pair;
+      read_command = 'MG @IN[15], @IN[16]'
+      writeable = 1
+      write_function = write_switch;
+      write_command = '11'
+      allowed = 'in,out'
+      property 'nxalias' = 'rough_100'
+    }
+  };
+
+#
+# Code lines start with '@' which is stripped before being emitted
+# The code is emitted at the appropriate place in the given function
+#
+  code read_function read_switch_pair = {
+@  if { [string equal -nocase -length 1 "${data}" "?"] } {
+@    sct geterror "Galil error in: '${data}'"
+@  } else {
+@    set data_list [split [string trim "${data}"]]
+@    if { [llength ${data_list}]  > 2 && [lindex ${data_list} end] == ":" } {
+@      set data_list [lrange ${data_list} 0 1]
+@    }
+@    if { [llength ${data_list}] == 2 } {
+@      set left [expr [lindex ${data_list} 0]]
+@      set right [expr [lindex ${data_list} 1]]
+@      if  { ${left} == 1 && ${right} == 0 } { # open
+@        set data "out"
+@      } elseif  { ${left} == 0 && ${right} == 1 } { # closed
+@        set data "in"
+@      } else { # indeterminate
+@        set data "moving"
+@      }
+@    } else {
+@      sct geterror "Syntax error in: '${data}'=>'${data_list}'"
+@    }
+@  }
+  }
+  code write_function write_switch = {
+@  if { [string equal -nocase -length 2 "${par}" "in"] } {
+@    set cmd "SB${cmd_str}"
+@  } elseif { [string equal -nocase -length 2 "${par}" "out"] } {
+@    set cmd "CB${cmd_str}"
+@  } else {
+@    sct geterror "Value error: '${par}' not in ('in', 'out')"
+@  }
+  }
+#
+# This code is after database creation
+#
+  code mkDriver = {
+  }
+};
diff --git a/site_ansto/instrument/bilby/config/motors/tank.sct b/site_ansto/instrument/bilby/config/motors/tank.sct
new file mode 100644
index 00000000..b22d752f
--- /dev/null
+++ b/site_ansto/instrument/bilby/config/motors/tank.sct
@@ -0,0 +1,70 @@
+#
+# Simple driver generator for the non-motor galil controls on mc8
+# vim: ts=8 sts=2 sw=2 expandtab autoindent smartindent nocindent
+#
+driver tank = {
+  usecreatenode = false
+  vendor = galil; device = mc8; protocol = dmc2280;
+  class = instrument
+  simulation_group = motor_simulation
+#
+# Unnamed group has variables at device level
+#
+#
+# The named group is at the device level, variables below that
+#
+  group switches = {
+    type = text;
+    priv = user;
+    readable = 1;
+    read_function = read_switch;
+    var forward = {
+      read_command = 'MG @IN[5]'
+    }
+    var reverse = {
+      read_command = 'MG @IN[6]'
+    }
+  };
+  group limits = {
+    type = text;
+    priv = user;
+    readable = 1;
+    read_function = read_switch;
+    var forward = {
+      read_command = 'MG _LFH'
+    }
+    var reverse = {
+      read_command = 'MG _LRH'
+    }
+  };
+
+#
+# Code lines start with '@' which is stripped before being emitted
+# The code is emitted at the appropriate place in the given function
+#
+  code read_function read_switch = {
+@  if { [string equal -nocase -length 1 "${data}" "?"] } {
+@    sct geterror "Galil error in: '${data}'"
+@  } else {
+@    set data_list [split [string trim "${data}"]]
+@    if { [llength ${data_list}] > 1 && [lindex ${data_list} end] == ":" } {
+@      set data_list [lrange ${data_list} 0 0]
+@    }
+@    if { [llength ${data_list}] == 1 } {
+@      set left [expr [lindex ${data_list} 0]]
+@      if  { ${left} == 1 } { # open
+@        set data "open"
+@      } else { # closed
+@        set data "closed"
+@      }
+@    } else {
+@      sct geterror "Syntax error in: '${data}'=>'${data_list}'"
+@    }
+@  }
+  }
+#
+# This code is after database creation
+#
+  code mkDriver = {
+  }
+};
diff --git a/site_ansto/instrument/util/gen_sct.py b/site_ansto/instrument/util/gen_sct.py
index 7db82017..1d03a201 100755
--- a/site_ansto/instrument/util/gen_sct.py
+++ b/site_ansto/instrument/util/gen_sct.py
@@ -768,6 +768,10 @@ def put_write_function(MyDriver, func):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs'][func]['text']
     txt += ['# hook code ends']
+    txt += ['  if { [hpropexists [sct] geterror] } {']
+    txt += ['    debug_log 1 "[sct] error: [sct geterror]"']
+    txt += ['    return -code error "[sct geterror]"']
+    txt += ['  }']
   txt += ['  debug_log 1 "%s sct send ${cmd}"' % func]
   txt += ['  sct send "${cmd}"']
   txt += ['  return ${nextState}']
@@ -800,6 +804,10 @@ def put_fetch_function(MyDriver, func):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs'][func]['text']
     txt += ['# hook code ends']
+    txt += ['  if { [hpropexists [sct] geterror] } {']
+    txt += ['    debug_log 1 "[sct] error: [sct geterror]"']
+    txt += ['    return -code error "[sct geterror]"']
+    txt += ['  }']
   txt += ['  debug_log 1 "%s sct send ${cmd}"' % func]
   txt += ['  sct send "${cmd}"']
   txt += ['  return ${nextState}']
@@ -825,10 +833,10 @@ def put_read_function(MyDriver, func):
     txt += ['# hook code starts']
     txt += MyDriver['Funcs'][func]['text']
     txt += ['# hook code ends']
-  txt += ['  if { [hpropexists [sct] geterror] } {']
-  txt += ['    debug_log 1 "[sct] error: [sct geterror]"']
-  txt += ['    return -code error "[sct geterror]"']
-  txt += ['  }']
+    txt += ['  if { [hpropexists [sct] geterror] } {']
+    txt += ['    debug_log 1 "[sct] error: [sct geterror]"']
+    txt += ['    return -code error "[sct geterror]"']
+    txt += ['  }']
   txt += ['  if { ${data} != [sct oldval] } {']
   txt += ['    debug_log 1 "[sct] changed to new:${data}, from old:[sct oldval]"']
   txt += ['    sct oldval ${data}']
diff --git a/statistics.c b/statistics.c
index 406be5a4..da2a622d 100644
--- a/statistics.c
+++ b/statistics.c
@@ -58,7 +58,7 @@ int StatisticsCommand(SConnection * con, SicsInterp * pSics, void *pData,
 
   gettimeofday(&now, 0);
   dif = timeFloat(timeDif(lastStat, now));
-  SCPrintf(con, eLog, "calls/s time[%] full[%] mean[ms]  command");
+  SCPrintf(con, eLog, "calls/s time[%%] full[%%] mean[ms]  command");
   SCPrintf(con, eLog, "----------------------------------------------");
   for (p = list; p != NULL; p = p->next) {
     if (dif > 0) {