BB2-7030 User Guide – Rev. 1.0
Page 47
The periodic poll time determines how often the remote OID will be read. This number, if
nonzero, will override the default poll time given in the Devices page for the remote device
being read.
The default value will be stored into the local object after the given number of read failures if the
fail count is non-zero. Setting the count to zero will disable the default, and the object will retain
the most recent value obtained.
Delete will remove the rule number shown in the "Map #" box. Insert will insert a new rule
before the rule number shown, and is used for placing rules between existing rules. It is not
necessary to use Insert to add rules to the bottom of the list or to define any rule presently having
zero for a source object or "none" for remote type.
Entering zero (for none) for local object effectively deletes the rule even though it will still
appear in the list until deleted. Unused rules at the end of the list will always show none as the
type. If you wish to prevent these from being displayed, reduce the number of rules enabled.
Initial COV increment and period will only apply if a BACnet client subscribes to COV
notification from the BACnet object assigned to this SNMP client map. These properties may be
overwritten by the BACnet client(s) at any time. The values shown here are initial values, not
necessarily the current values. (Note: COV increment only applies to Analog objects, all changes
are reported for Binary or Multistate objects.)
Units default to no_units, but you may select any of the available BACnetEngineeringUnits
values. This value will simply be read by the BACnet client when the units property is requested
from the object this OID maps to. The units have no bearing on calculations performed. You
must select appropriate scale and offset values to make any required translation between SNMP
units and BACnet units. Units are only valid for Analog objects.
The number of rules enabled simply limits the scope of rule review so that you do not have to
review a lot of unused rules. If the displayed rules are used up and you need more, increase the
enabled number.
