fixes on 2023-11-27

- ls372 autorange: wait one sec. more for switching
- keep only one channel, even after target is reached
- intermediate target only when T is raise, but not when lowered

cfg/addons/flamesample_cfg.py

@@ -24,6 +24,7 @@ Mod('ts_low',
     minrange=13,
     range=22,
     tolerance = 0.1,
+    vexc = 3,
     htrrng=4,
 )
 
@@ -32,7 +33,8 @@ Mod('ts_high',
     'sample Cernox',
     channel = 1,
     switcher = 'lsc_channel',
-    minrange=9,
+    minrange=11,
+    vexc = 5,
     range=22,
     tolerance = 0.1,
     htrrng=5,
@@ -45,7 +47,9 @@ Mod('ts',
     value=Param(unit='K'),
     low='ts_low',
     high='ts_high',
-    min_high=0.6035,
-    max_low=1.6965,
+    #min_high=0.6035,
+    #max_low=1.6965,
+    min_high=0.6,
+    max_low=1.7,
     tolerance=0.1,
 )

frappy_psi/ls372.py

@@ -231,7 +231,7 @@ class ResChannel(Channel):
     def _read_value(self):
         """read value, without update"""
         now = time.monotonic()
-        if now + 0.5 < max(self._last_range_change, self.switcher._start_switch) + self.pause:
+        if now - 0.5 < max(self._last_range_change, self.switcher._start_switch) + self.pause:
             return None
         result = float(self.communicate('RDGR?%d' % self.channel))
         if result == 0:
@@ -241,7 +241,7 @@ class ResChannel(Channel):
             return None
         if self.autorange:
             self.fix_autorange()
-            if now + 0.5 > self._last_range_change + self.pause:
+            if now - 0.5 > self._last_range_change + self.pause:
                 rng = int(max(self.minrange, self.range))  # convert from enum to int
                 if self.status[0] < self.Status.ERROR:
                     if abs(result) > self.RES_SCALE[rng]:
@@ -386,6 +386,10 @@ class TemperatureLoop(HasConvergence, TemperatureChannel, Drivable):
     htrrng = Parameter('', EnumType(HTRRNG), readonly=False)
     _control_active = False
 
+    def doPoll(self):
+        super().doPoll()
+        self.set_htrrng()
+
     @Command
     def control_off(self):
         """switch control off"""

frappy_psi/parmod.py

@@ -22,7 +22,7 @@
 """modules to access parameters"""
 
 from frappy.core import Drivable, EnumType, IDLE, Attached, StringType, Property, \
-    Parameter, FloatRange, Readable, ERROR
+    Parameter, FloatRange, BoolType, Readable, ERROR
 from frappy.errors import ConfigError
 from frappy_psi.convergence import HasConvergence
 from frappy_psi.mixins import HasRamp
@@ -148,6 +148,7 @@ class SwitchDriv(HasConvergence, Drivable):
     max_low = Parameter('maximum low target', FloatRange(unit='$'), readonly=False)
     # disable_other = Parameter('whether to disable unused channel', BoolType(), readonly=False)
     selected = Parameter('selected module', EnumType(low=LOW, high=HIGH), readonly=False, default=0)
+    autoswitch = Parameter('switch sensor automatically', BoolType(), readonly=False, default=True)
     _switch_target = None  # if not None, switch to selection mhen mid range is reached
 
     # TODO: copy units from attached module
@@ -165,13 +166,13 @@ class SwitchDriv(HasConvergence, Drivable):
                     self.write_target(self.target)
                     return
             else:
-                high = get_value(self.high, mid)  # return mid then high is invalid
+                high = get_value(self.high, mid)  # return mid when high is invalid
                 if high < mid:
                     self.value = self.high.value
                     self._switch_target = None
                     self.write_target(self.target)
                     return
-        if not self.isBusy():
+        if not self.isBusy() and self.autoswitch:
             low = get_value(self.low, self.max_low)
             high = get_value(self.high, self.min_high)
             low_valid = low < self.max_low
@@ -184,8 +185,9 @@ class SwitchDriv(HasConvergence, Drivable):
                 if not high_valid and not self.high.control_active:
                     set_enabled(self.high, False)
                 return
-            set_enabled(self.low, True)
-            set_enabled(self.high, True)
+            # keep only one channel on
+            #set_enabled(self.low, True)
+            #set_enabled(self.high, True)
 
     def get_selected(self):
         low = get_value(self.low, self.max_low)
@@ -219,13 +221,13 @@ class SwitchDriv(HasConvergence, Drivable):
                 this, other = other, this
                 selected = HIGH
         elif target < self.min_high * 0.75 + self.max_low * 0.25:
-            if self.value > self.max_low:
-                target1 = max(self.min_high, target)
-                self._switch_target = LOW
-                this, other = other, this
-                selected = HIGH
-            else:
-                selected = LOW
+            #if self.value > self.max_low:
+            #    target1 = max(self.min_high, target)
+            #    self._switch_target = LOW
+            #    this, other = other, this
+            #    selected = HIGH
+            #else:
+            selected = LOW
         elif self.selected == HIGH:
             this, other = other, this
         if hasattr(other, 'control_off'):