Neighbor Filter; Allocate General Purpose File Memory - Campbell CR510 Operator's Manual

Section 12. Program Control Instructions

Neighbor Filter

Allocate General Purpose File Memory

12-18
desired interval in the Communications Interval field. This option is the same
as the datalogger's *D18 mode.
In some networks, a beacon interval might interfere with regular
communication in the PakBus network (such as in an RF network), since the
beacon is broadcast to all devices within range. In such cases, it may be more
appropriate to use the Neighbor Filter instead, which broadcasts a beacon only
to those dataloggers which it has not received communication from within a
specified interval.
This option allows you to list potential neighbors that are available to the
datalogger in the PakBus network. The datalogger will attempt to issue a
"hello" command to all the dataloggers listed in the neighbors filter list, and
will transmit an expected communication interval. The communication interval
is the interval on which the datalogger expects to receive communication from
the neighbors. If communication is not received from a neighbor within 2.5
times this interval, then the datalogger will attempt to issue another "hello"
command to that datalogger only (thus, creating less network traffic than the
Beacon Interval).
The expected interval is entered into the Communication Interval field in
seconds. The neighbors are defined by entering their addresses into the table. A
range of addresses can be entered by using the Swath field. For example,
entering 1 for the address and 5 for the swath will set up dataloggers with
PakBus addresses 1, 2, 3, 4, and 5 as neighbors to the current datalogger.
This option is the same as the datalogger's *D19 mode.
PakBus dataloggers have the ability to store files transmitted from an NL100 in
a general purpose memory area. This memory area is configured as ring
memory. A value can be entered to specify the number of 64K blocks of
memory that should be used for this purpose. Final storage memory will be
reduce by the amount of memory specified in this option. This option is the
same as the datalogger's *D16 mode.