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The following figure shows how the integration has to be done.

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The communication between the VHP and the NETx Server is based on TCP/IP. In detail, the VHP side acts as a TCP server and the NETx Server acts a TCP client. The protocol itself is based on a communication standard called FIAS.

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To start, open the BMS Studio. First, configure the IP address and port number that you have enter within the web service URL.This can be done by selecting "Driver Configuration" within the menu "Modules" -> "VHP". If this information is not known, please ask the VHP integrator.

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• BuildingNumber
  • String, read only
  • Specified within Room Definitions within NETx Server
• LevelNumber
  • String, read only
  • Specified within Room Definitions within NETx Server
• RoomNumber
  • String, read only
  • Specified within Room Definitions within NETx Server. Must be identically with the room number used within VHP
• Description
  • String, read only
  • Specified within Room Definitions within NETx Server
• GuestsCount
  • UINT8, read only
  • Amount of guest that are checked in for this room
• GuestName
  • String, read only
  • Guest name that is received from VHP
• GuestLanguage
  • String, read only
  • Language code that is received from VHP. E.g. de, en, es, ...
• GuestVIP
  • UINT8, read only
  • VIP status that is received from VHP
• RoomCheckedForecast (only available if enabled in "Driver configuration...")
  • Boolean, read only
  • True if there is a forecast check in for this room – False if room not
• RoomChecked
  • Boolean, read only
  • True if at least 1 guest is check in this room – False if room is free
• ClassOfService (read only)
  • UINT8, read only
  • Received from VHP. 0 (Barred/hotel internal only), 1 (local), 2 (national), 3 (no restrictions)
• DoNotDisturb 
  • Boolean, read only
  • True if DND is received from VHP– False otherwise
• RoomStatus
  • UINT8, read and writable
  • See table below
• ClearText
  • String, read and writable
• GuestArrivalDate
  • DateTime, read only
  • Arrival data and time of guest. Normally this is equal to the checkin data and time. Please keep in mind that VHP is not providing an arrival date before the checkin signal
• GuestDepartureDate
  • DateTime, read only
  • Scheduled depature data and time of guest.
• PrinterPort
  • UINT8, read only
• MessageCount
  • UINT8, read only
  • Amount of messages that are available for this room
• NextMessage
  • Boolean, write only
  • If set to true, the next message that is queued within the server is shown within the server item "MessageText"
• MessageText
  • String, read only
  • Last message that was received from VHP
• GetMessage 
  • Boolean, write only
  • If set to true, all available messages are fetched from VHP and stored within the server. Using the item "NextMessage", these messages can be shown within the item "MessageText"
• SendMessage 
  • String, read and writable
  • Used to send a message to VHP for this room
• MessageLightStatus
  • Boolean, write only

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These are the predefined room states that are available within VHP. However, it is possible to specify additional room states for additional functionality. For example, further states for "Do not disturb" or "Make up room" can be defined. Using this additional room states, it is possible  to send additional information from the BMS to the VHP system. A typical use case is to add a KNX switch for DND that sends a user-defined room status (e.g. 7 "DND) to the VHP system. These additional room states have to configured within VHP by the VHP integrator.

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VHP provides the possibility to get the check-in signal before the hotel guest does the real check-in at the hotel reception. If the time interval for this so called "forecast check-in" is set to, for example, 6 hours, this "forecast check in" can be used to enable the HVAC system for the dedicated room in advance. This has the advantage that there is already a comfort room temperature when the guest arrives at his or her room.

In order to use this functionality, the "forecast check-in" has to be enabled within the VHP software. For more information, please contact the VHP technical team.

If the "forecast check in" is enabled at the VHP side, you can enable it with the NETx Server, too. To do so, open the driver configuration menu within the studio and set the option "Enable forecast check-in" to true.

After having restarted the server, you will get for each room two check-in/check-out server items:

• RoomCheckedForecast: this item changes from false to true, when a "forecast check-in" signal is received from VHP. The time interval for sending it before the real check-in can be set within the VHP system (not within the NETx Server). Obviously, a forecast check-in is only received if there is reservation within VHP. During a check-out, the item changes from true to false.
• RoomChecked: when there is a real check-in e.g. the hotel guest arrives at the hotel reception for check-in, this item changes from false to true. During a check-out, the item changes from true to false.

Adding control functionality

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A typical use case would be the mapping of the RoomCheck item from VHP to a data point like the set point or the mode of the room's climate control. For implementing this use case, a predefined XLogic command called "HotelCheckInCheckOut" is already included within the server. Open the XCommand Event Definitions (BMS Studio --> Extensions) and add a new definition line. Give the logic a name (e.g. Room101), select "ON_VALUE_CHANGE" as type and select the XLogic "Hotel.CheckInCheckOut". Within the configuration dialog, select the input item (e.g. NETx\XIO\VHP\PartA\Floor1\101\RoomChecked) and as output the data point that shall be controlled by the checkin/checkout signal (e.g. KNX group address of the set point of the room). The following screenshot shows an example:

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Repeat these steps for a hotel rooms. After having finished all definitions, restart the server.

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