ABB WICB Benutzerhandbuch
36 OI/266/WIHART-EN | 2600T Series Pressure transmitters
7 Commissioning
7.9 Commissioning by DTM
The 266WiPressure DTM gives access to all parameters and
information relevant to communication and device
commissioning. Once the device is taken into the wireless
network by the gateway the DTM can be used with the wired
but also with the wireless interface, depending of the
capabilities of FDT frame application and gateway.
information relevant to communication and device
commissioning. Once the device is taken into the wireless
network by the gateway the DTM can be used with the wired
but also with the wireless interface, depending of the
capabilities of FDT frame application and gateway.
Typically the connection to the gateway is via Ethernet. This
allows a remote access to the wireless HART network and the
266 WiPressure over intranet or Ethernet, depending on the
network policies. Components and tools provided or
recommended by ABB do not have limitation regarding the
communication interface.
allows a remote access to the wireless HART network and the
266 WiPressure over intranet or Ethernet, depending on the
network policies. Components and tools provided or
recommended by ABB do not have limitation regarding the
communication interface.
Usually the network ID and join key needs to be set to allow a
wireless device to enter an existing network. The join key and
the network ID are also set in the gateway and must be the
same as that entered in the 266 WiPressure.
wireless device to enter an existing network. The join key and
the network ID are also set in the gateway and must be the
same as that entered in the 266 WiPressure.
The following description assumes the device needs a change
of network parameters to join a network.
of network parameters to join a network.
The DTM will have to be connected via a wired interface to the
266 WiPressure. After searching for the device and getting into
online mode the dialog Network Settings should be opened:
266 WiPressure. After searching for the device and getting into
online mode the dialog Network Settings should be opened:
The sequence of the adjustments is as the position of the
parameters with the DTM dialog:
parameters with the DTM dialog:
1. Network ID to be set in decimal notation within the DTM.
2. Join key to be set in hexadecimal notation
3. Join mode. Usually the option “Join now” is most suitable
to let the device enter the (new) network after download all
parameters described above.
to let the device enter the (new) network after download all
parameters described above.
The data on the bottom of the dialog gives status information
about the process of network join. Whenever a wireless HART
network is in the range of 266 WiPressure – even it does not
match its own network parameters - the “Wireless signal
found” flag is set. This is a pre-condition to join a network. The
266 WiPressure now tries to join the network and to establish a
connection to the wireless HART gateway.
about the process of network join. Whenever a wireless HART
network is in the range of 266 WiPressure – even it does not
match its own network parameters - the “Wireless signal
found” flag is set. This is a pre-condition to join a network. The
266 WiPressure now tries to join the network and to establish a
connection to the wireless HART gateway.
A successful join phase is indicated by the “Join complete” flag
at the end. Depending of the network structure, size and
performance of wireless HART gateway and other devices in
the network it may take up to 60 minutes.
at the end. Depending of the network structure, size and
performance of wireless HART gateway and other devices in
the network it may take up to 60 minutes.
Important. Some gateways need to switch on the “Active
Advertising” in order to support devices to join the network.
Advertising” in order to support devices to join the network.
7.9.1 Network Diagnostics by DTM
One of the strengths of wireless HART networks is the
capability to automatically build a robust meshed structure. So
the wireless devices try to connect to neighbours in order to
get multiple paths for any telegram.
capability to automatically build a robust meshed structure. So
the wireless devices try to connect to neighbours in order to
get multiple paths for any telegram.
Powerful network diagnostics of 266 WiPressure automatically
checks the network transmission quality to and from the device
itself.DTM gives visibility about signal strenght for at maximum
five neighbour devices showing their specific link.
checks the network transmission quality to and from the device
itself.DTM gives visibility about signal strenght for at maximum
five neighbour devices showing their specific link.
Signal strength is returned as a computed value which includes
signal level, retries required etc.
signal level, retries required etc.
Important. In a proper and robust network, each wireless
device should have at least three neighbours.
device should have at least three neighbours.
Figure 35: Burst B2 in OFF-OFF status