CRVW3 3-Channel Vibrating-Wire Datalogger
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For 1 active channel the smallest (fastest) measurement interval is 1 second.
For two channels, 2 seconds is required, and for three channels, 3 seconds is
the smallest interval. The longest interval between measurements that can be
used is 24 hours.
PakBus – PakBus Address
If multiple CRVW3 devices will communicate with each other in the field or
communicate to
LoggerNet
from the field, each CRVW3 station requires a
unique
PakBus address
. You may wish to give a unique address to each
CRVW3 even if it currently won’t be deployed as part of a radio network in
case your communications usage on the device changes in the future. Valid
PakBus address range is 1 to 4094. Generally, addresses between 4000 and
4094 are reserved for use by specialized PakBus server tools such as
LoggerNet
or
DevConfig
. Therefore, it is recommended that addresses between
4000 and 4094 be used only by experienced PakBus network engineers.
When deploying multiple devices to the field, plan carefully so that no two
devices share the same address.
The
Network Planner
can be used to manage PakBus Addresses
and ensure that each device has a unique value for this setting.
PakBus – Is Router
Sometimes, a CRVW3 is not only used to make measurements, but it is also
used as a communications relay device in a radio network. This can extend the
spatial range of the network by allowing distant stations to communicate back
to a base station via multiple radio links or “hops”. When a CRVW3 station
performs these relay functions it is known as a radio repeater, and also
functions as a PakBus router. Set the
Is Router
setting to true when the
CRVW3 station will be used in this way.
Since a station configured as a router must communicate with
multiple remote stations, an omnidirectional antenna is usually
required instead of a directional antenna. For more information
about repeater stations and routing, refer to Section
Channel 1, Channel 2, Channel 3 – Name
Each measurement channel (sensor) can be given a name. This helps to
distinguish data from multiple sensors as it is stored in the final storage table
and eventually collected into data files by
LoggerNet
or other means.
Sometimes a name more descriptive than just the channel number is helpful.
Channel 1, Channel 2, Channel 3 – Enabled
This setting is used to specify whether the channel will be actively measured or
not. When set to
False
, any sensor connected to the channel will be ignored.
NOTE
NOTE
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