[Resolved] How to integrate Homematic button "HmIP-WRC6"?

Add-ons Bindings
,
1

Tried to integrate it using “openhab2-online 2.0.0~20170107034332”:

.things:
Thing HmIP-WRC6 000B55699AEB46

.items:
Switch EG_WZ_Taster1_Taste1 "EG WZ Taster 1" <settings> (EG_Wohnzimmer) { channel="homematic:HmIP-WRC6:ccu:000B55699AEB46:1#PRESS_SHORT" }

If I press one of the 6 buttons I succesfully do receive this log:
2017-01-22 10:59:50.475 [DEBUG] [ternal.communicator.HomematicGateway] - Received new (Boolean) value 'true' for '000B55699AEB46:1#PRESS_SHORT' from gateway with id 'ccu'

However I am not able to “catch” the event of a button press in a .rules-file (nothing happens!):
rule "TEST Taster1"
when
Item EG_WZ_Taster1_Taste1 changed
then
logInfo(“Taster1”,“TEST”)
end

What to do???

===

Here a hint: if I switch on the item via a GUI this happens:
2017-01-22 11:00:28.432 [WARN ] [ome.core.thing.internal.ThingManager] - Cannot delegate command 'ON' for item 'EG_WZ_Taster1_Taste1' to handler for channel 'homematic:HmIP-WRC6:ccu:000B55699AEB46:1#PRESS_SHORT', because no handler is assigned. Maybe the binding is not installed or not propertly initialized.

===

Here a trace-log:
==> /var/log/openhab2/openhab.log <==
ADDRESS=LEQ0419382
CONNECTED=true
DEFAULT=true
DESCRIPTION=CCU2-Coprocessor
DUTY_CYCLE=10
FIRMWARE_VERSION=2.4.3
TYPE=CCU2
}
]

2017-01-22 16:51:58.734 [TRACE] [nal.communicator.server.XmlRpcServer] - Server parsed XmlRpcMessage:
event()
HMIP-ccu
000B55699AEB46:1
PRESS_SHORT
true

2017-01-22 16:51:58.735 [DEBUG] [ternal.communicator.HomematicGateway] - Received new (Boolean) value 'true' for '000B55699AEB46:1#PRESS_SHORT' from gateway with id 'ccu'
2017-01-22 16:51:58.736 [DEBUG] [ematic.internal.misc.DelayedExecuter] - Delaying event for 2.0 seconds: '000B55699AEB46:1#PRESS_SHORT'
2017-01-22 16:51:58.737 [TRACE] [nal.communicator.server.XmlRpcServer] - Server XmlRpcResponse:
<?xml version="1.0" encoding="ISO-8859-1"?>
<methodResponse><params><param><value></value></param></params></methodResponse>
2017-01-22 16:51:58.878 [TRACE] [nal.communicator.server.XmlRpcServer] - Server parsed XmlRpcMessage:
system.multicall()
[
	{
		methodName=event
		params=
		[
			HMIP-ccu
			000B55699AEB46:0
			RSSI_DEVICE
			-87
		]
	}
	{
		methodName=event
		params=
		[
			HMIP-ccu
			000B55699AEB46:0
			UNREACH
			false
		]
	}
]

2017-01-22 16:51:58.878 [DEBUG] [ternal.communicator.HomematicGateway] - Received new (Integer) value '-87' for '000B55699AEB46:0#RSSI_DEVICE' from gateway with id 'ccu'
2017-01-22 16:51:58.879 [DEBUG] [ternal.communicator.HomematicGateway] - Received new (Boolean) value 'false' for '000B55699AEB46:0#UNREACH' from gateway with id 'ccu'
2017-01-22 16:51:58.880 [TRACE] [nal.communicator.server.XmlRpcServer] - Server XmlRpcResponse:
<?xml version="1.0" encoding="ISO-8859-1"?>
<methodResponse><params><param><value><array><data><value>event</value></data></array></value></param></params></methodResponse>
2

Sorry. Fixed by reboot.