Pull some changes from RELEASE-3_1 in gen_sct and *.sct

site_ansto/instrument/config/environment/isotech_ps.sct

@@ -5,7 +5,7 @@ driver isotech_ps = {
   vendor = isotech; device = ps; protocol = std;
   class = environment;
   simulation_group = environment_simulation;
-  protocol_args = '"\r"';
+  protocol_args = '{terminator \r}';
   group = {
     readable = 5
     mutable = true

site_ansto/instrument/config/environment/temperature/julabo_lh45.sct

@@ -8,7 +8,7 @@ driver julabo_lh45_gen = {
   simulation_group = environment_simulation
   add_args = '{id 1} {ctrl_sensor "bath"} {tol 5.0}';
   make_args = 'id ctrl_sensor tol';
-  protocol_args = '"\r"';
+  protocol_args = '{terminator \r}';
 #
 # Unnamed group has variables at device level
 #
@@ -22,7 +22,7 @@ driver julabo_lh45_gen = {
       permlink = 'T.SP01';
       writeable = 1; write_function = setPoint; write_command = 'out_sp_00';
       driveable = sensor/'value';
-      lowerlimit = 10; upperlimit = 90; tolerance = '${tol}';
+      lowerlimit = -20; upperlimit = 90; tolerance = '${tol}';
     }
     var overtemp_warnlimit = {
       read_command = 'in_sp_03';