SECTION 4. OPERATION OF THE RADIOTELEMETRY NETWORK
4-3
Enabling the HIPRIORITY flag will cause
RTM, and in turn DlsMgr and the RFBase, to
attempt to collect data as fast as possible
from the station(s) used on the affected
template. The RFBase will poll these sites
as fast it can while maintaining polling on the
other sites. The RFBase will continue
polling at the hi priority rate for about one
minute after RTM has stopped. This is also
found under OPTIONS on the main menu.
By default, the HIPRIORITY flag is not
enabled.
4.1.3 DATA ARCHIVE AND ROUTING
(DBSELECT)
As with RTM, none of the DBSelect settings
are RF specific but the availability of data is
tied to the polling interval and the RF
communications.
4.2 GRAPHTERM FOR DOS
VERSION 2.2 OR NEWER.
While RTMS is used primarily with the CR10T
dataloggers and RF95T modems, there may
be occasions when it is desirable to access a
site with an inexpensive DOS computer. For
example, when doing a field site visit for
maintenance, it is convenient to have a laptop
computer on site to verify sensor
performance before returning to the base.
When installing a RF network, it may be
useful to use a portable base station as
described in Appendix B. For both of the
situations, GraphTerm is very convenient.
Like RTMS, GraphTerm may be used to
collect data, set clocks, download datalogger
programs, graph data, and test RF links.
Unlike RTMS, GraphTerm can only be used
with one site at a time and is not intended for
unattended use. While it is possible to have a
station communicating with RTMS and
GraphTerm at the same time, more
predictable behavior is exhibited if only one is
used at a time. RTMS sites may be “turned
off” without actually removing them from the
net description. This is done by deselecting
the ON check box; (part of the affected
stations net description in NetAdmin). The
net description should be “made active” after
this change.
NOTE: GraphTerm cannot be used with
COM 3 or 4 on an OS/2 computer.
4.2.1 THE GRAPHTERM STATION FILE.
GraphTerm uses station files to describe the
communication path and data collection
options associated with a datalogger site.
When GraphTerm is run, it will present a
STATION NAME (ADD /E TO EDIT
PARAMETERS): prompt. Enter the name of
an existing station file to use that file or enter
a new name to create a station file. Use the
stationname/E to edit a station file. If
GraphTerm is run on the OS/2 computer
that is used for RTMS, GraphTerm should
be run in a separate directory of GraphTerm
and RTMS can create files with the same
names. OS/2 does not support GraphTerm
and RTMS with both using the same
communication port (serial port) at the same
time. A screen prompting for the following
parameters will be displayed when editing a
station file.
Telecommunication Parameters For Station:
RF1
Datalogger Type:
CR10T
Security Code: 0
Use Asynchronous Communications Adapter:
COM1
Communications Baud Rate:
9600
Data File Format:
Comma w/International Date
Station No:
1
Interface Device:
#1: RF Modem
Path: 2:1
#2: End
