proper prefix handling

Author: Peter Braun

src/secop_ophyd/SECoPDevices.py

@@ -869,6 +869,7 @@ def __init__(
         self.logdir = logdir
 
         self.name = name
+        self.prefix = prefix
 
     async def connect(
         self,
@@ -902,6 +903,8 @@ async def connect(
             if self.name == "":
                 self.name = self._secclient.properties[EQUIPMENT_ID].replace(".", "-")
 
+            self.name = self.prefix + self.name
+
             config = []
 
             self.logger.info(