on the fly

frappy_psi/network_analysers/ZVL/ZVLDriver.py

@@ -31,7 +31,8 @@ class ZVLNetAnalyzer():
         self.base_data = self.get_data()[1]
         
     def reset(self):
-        self.instrument.write('*RST')
+        #self.instrument.write('*RST')
+        #self.instrument.write('SYST:PRES') # reloads current setup.
         self.instrument.write('*CLS')
         self.instrument.write('INST:NSEL 2')
         self.instrument.write('DISPlay:WINDow1:STATe ON')
@@ -112,7 +113,10 @@ class ZVLNetAnalyzer():
                 
                 data = self.format_data(data)
                 freqs = self.format_data(freqs, complex=False)
-                total_data += data
+                try:
+                    total_data += data
+                except:
+                    total_data = data
             total_data /= averaging_passes
         
         self.base_data = data

frappy_psi/network_analysers/ZVL/ZVLNode.py

@@ -36,7 +36,8 @@ class ZVLNode(fc.Readable):
         self.NA = ZVLNetAnalyzer(self.analyser_ip)
         self.NA.reset()
         self.acq()
-        
+
+    @fc.Command(description="Update data") 
     def acq(self):
         self.status = ('BUSY', 'acquiring')
         self.NA.set_freq_span(self.central_freq, self.freq_span)
@@ -56,4 +57,8 @@ class ZVLNode(fc.Readable):
     def write_analyser_ip(self, ip):
         self.analyser_ip = ip
         self.connect()
-        return self.read_analyser_ip()
+        return self.read_analyser_ip()
+
+    def read_value(self):
+        #self.acq()
+        return self.value