Changes after BMS EMS connection test with uniper

- Added EMS heartbeat timeout
- Removed commented code
- Fixed BMS Error DC-Switch: Was true when switch was ok and vice versa

PLC/GVLs/GVL_CONFIG.TcGVL

@@ -266,6 +266,9 @@ VAR_GLOBAL PERSISTENT
 	// Balancing factor
 	rBalancingFactor : REAL := 20.0;
 	
+	// Timeout heartbeat from EMS
+	timEMSHeartbeatTimeout : TIME := t#5s;
+	
 	// Dummy to deactivate functions
 	{attribute 'analysis' := '-33'}
 	xDummy : BOOL := FALSE;