change id to s/n

Author: HotNoob

classes/transports/modbus_base.py

@@ -68,6 +68,7 @@ def init_after_connect(self):
         #if sn is empty, attempt to autoread it
         if not self.device_serial_number: 
             self.device_serial_number = self.read_serial_number()
+            self.update_identifier()
 
     def connect(self):
         if self.connected and self.first_connect:

classes/transports/transport_base.py

@@ -67,10 +67,13 @@ def __init__(self, settings : 'SectionProxy', protocolSettings : 'protocol_setti
                 self.write_enabled = settings.getboolean(["write_enabled", "enable_write"], self.write_enabled)
             else:
                 self.write_enabled = settings.getboolean("write", self.write_enabled)
-            
-        self.device_identifier = (self.device_model + "_" + self.device_serial_number).lower()
+                
+        self.update_identifier()
 
 
+    def update_identifier(self):
+        self.device_identifier = (self.device_serial_number).trim().lower()
+
     def init_bridge(self, from_transport : 'transport_base'):
         pass