diff --git a/site_ansto/instrument/config/beamline/he3_polanal.sct b/site_ansto/instrument/config/beamline/he3_polanal.sct
index 1d38fc98..28c8b45f 100644
--- a/site_ansto/instrument/config/beamline/he3_polanal.sct
+++ b/site_ansto/instrument/config/beamline/he3_polanal.sct
@@ -4,42 +4,73 @@ driver he3_polanal = {
   protocol = std;
   class = instrument;
   simulation_group = rfgen_simulation;
+  make_args = '{has_pol true} {has_anal true}';
+
   group polariser = {
+    conditional = '[string equal -nocase ${has_pol} "true"]';
+    type = text;
     var spin = {
-      type = text;
       readable = 900;
       read_command = 'polariser';
       read_function = rdValue;
       writeable = 1;
       write_command = 'polariser';
       check_function = chkWrite;
-      allowed = "+,-,0"
+      allowed = "+,-,Refresh"
     }
-    var Amplitude = { type = text; }
-    var Freq = { type = text; units = 'Hertz'; }
-    var Phase = { type = text; units = 'Degree'; }
-    var Time2 = { type = text; units = 'Second'; }
-    var Field = { type = text; units = 'Oersted'; }
+    var Amplitude = { }
+    var Freq = { units = 'Hertz'; }
+    var Phase = { units = 'Degree'; }
+    var Time2 = { units = 'Second'; }
+    var Field = { units = 'Oersted'; }
+    var Timestamp = { }
   }
+  group polariser_start = {
+    conditional = '[string equal -nocase ${has_pol} "true"]';
+    type = text;
+    var spin = { }
+    var Amplitude = { }
+    var Freq = { units = 'Hertz'; }
+    var Phase = { units = 'Degree'; }
+    var Time2 = { units = 'Second'; }
+    var Field = { units = 'Oersted'; }
+    var Timestamp = { }
+  }
+
   group analyser = {
+    conditional = '[string equal -nocase ${has_anal} "true"]';
+    type = text;
     var spin = {
-      type = text;
       readable = 900;
       read_command = 'analyser';
       read_function = rdValue;
       writeable = 1;
       write_command = 'analyser';
       check_function = chkWrite;
-      allowed = "+,-,0"
+      allowed = "+,-,Refresh"
     }
-    var Amplitude = { type = text; }
-    var Freq = { type = text; units = 'Hertz'; }
-    var Phase = { type = text; units = 'Degree'; }
-    var Time2 = { type = text; units = 'Second'; }
-    var Field = { type = text; units = 'Oersted'; }
+    var Amplitude = { }
+    var Freq = { units = 'Hertz'; }
+    var Phase = { units = 'Degree'; }
+    var Time2 = { units = 'Second'; }
+    var Field = { units = 'Oersted'; }
+    var Timestamp = { }
   }
+  group analyser_start = {
+    conditional = '[string equal -nocase ${has_anal} "true"]';
+    type = text;
+    var spin = { }
+    var Amplitude = { }
+    var Freq = { units = 'Hertz'; }
+    var Phase = { units = 'Degree'; }
+    var Time2 = { units = 'Second'; }
+    var Field = { units = 'Oersted'; }
+    var Timestamp = { }
+  }
+
   code chkWrite = {%%
     [namespace current]::rdValue ${tc_root}
+    clientput [sct result]
   %%}
 
   code rdValue = {%%
@@ -61,6 +92,7 @@ driver he3_polanal = {
       set data [lindex ${dlist} 1]
     }
     set path [pathname [sct]]
+    set timestamp [clock format [clock seconds] -format "%T"]
     if {[llength ${dlist}] > 2} {
       set new_value [lindex ${dlist} 2]
       if { "${new_value}" == "NaN" } {
@@ -80,6 +112,7 @@ driver he3_polanal = {
     if {[llength ${dlist}] > 6} {
       hupdateif ${path}/Field "[lindex ${dlist} 6]"
     }
+    hupdateif ${path}/Timestamp "${timestamp}"
   %%}
 
   code setValue = {%%
@@ -87,6 +120,9 @@ driver he3_polanal = {
     if {[string equal -nocase [sct target] "refresh"]} {
       set cmd "${cmd_str}"
     }
+    if {[string equal -nocase [sct target] "minus"]} {
+      set cmd "${cmd_str} -"
+    }
     if {[string equal -nocase [sct target] "dn"]} {
       set cmd "${cmd_str} -"
     }
@@ -96,6 +132,9 @@ driver he3_polanal = {
     if {[sct target] == "-" || [sct target] == -1} {
       set cmd "${cmd_str} -"
     }
+    if {[string equal -nocase [sct target] "plus"]} {
+      set cmd "${cmd_str} +"
+    }
     if {[string equal -nocase [sct target] "up"]} {
       set cmd "${cmd_str} +"
     }