fix

src/components/archive_synchronizer.py

@@ -23,7 +23,7 @@ class ArchiveSynchronizer(Component):
     def __init__(self, config=None, name=None, period=1, lazy=True, paused=False, threaded=True):
         super().__init__(config=config, name=name, period=period, lazy=lazy, paused=paused, threaded=threaded)
         self.simulate = "--sim-archiver" in sys.argv
-        self.machine_status = "offline"
+        #self.machine_status = "offline"
 
     def config_changed(self):
         self.machine_id = self.config.machine_id

src/components/modbus_component.py

@@ -1,5 +1,6 @@
 import sys
 import traceback
+import warnings
 
 if "--sim-serial" in sys.argv:
     from components.dummies.serial import serial
@@ -48,7 +49,10 @@ class ModbusComponent(Component):
             strict=False,
         )
         if not self.client.connect():
+            warnings.warn("device not reachable (could not connect): {} ({})".format(self.name, self.port),
+                          RuntimeWarning)
             raise ConnectionError("device not reachable (could not connect): {} ({})".format(self.name, self.port))
+
         if not self.client.is_socket_open():
             raise ConnectionError("device not reachable (socket not open): {} ({})".format(self.name, self.port))
         self.lock.unlock()