CALAMP WIRELESS NETWORKS INC. MCUB5R Manual Do Utilizador

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Integra TR Technical Manual
 
Online diagnostics. Information is auto-
matically sent by each unit at the beginning
of every data transmission.
 
Offline diagnostics. Information is sent by a
specific unit in response to an inquiry made
locally or from another station.
 
Diagnostics are processed using the Integra-TR’
RDS.
1.8.1 Remote 
Commands
 
The upcoming Integra RRSS will allow config-
uring most functions and adjustments remotely
via the radio network.
 
Sending remote commands and receiving re-
sponses is done with the host application off-
line.
1.9 Firmware 
Upgrades
 
Integra-TR’s firmware resides in flash EPROM
and is designed to allow field upgrades.
 
Upgrades are done using a PC connected to In-
tegra-TR and do not require that the unit be
opened.
1.10 Network Application
 
Integra-TR is suited to a variety of network ap-
plications. Its primary design goal was to satisfy
the needs of SCADA systems using RTUs or
PLCs in either point to point or point–multipoint
service.
 
This section gives an overview of some common
configurations. Selection of “master” or “re-
mote” as well as data delivery conditions is
done using the Integra RSS.
1.10.1  RF Path and Communications
Range
 
Integra-TR is designed for use over distances up
to 30 miles (50 km) depending on terrain and
antenna system. To assure reliable commun-
ications, the RF (radio frequency) path between
stations should be studied by a competent pro-
fessional, who will then determine what anten-
nas are required, and whether or not a repeater is
needed.
1.10.2 Basic 
Connections
 
The connections required (except power) are
shown below in Figure 1.
 
While an RTU or PLC is shown in the diagram,
master stations often use a PC running an appli-
cation designed to communicate with remote
RTUs or PLCs.
 
The Setup PC is used for both configuration and
local and remote diagnostics. It may be left con-
nected at all times if desired, but is not required
for normal operation once the unit has been con-
figured.
 
Integra
®
Antenna
Integra 
Setup PC
RTU or PLC
 
Figure 1 - Basic connections required
1.10.3  Common Characteristics
 
The networks described below share a number
of common characteristics.
1.  The network speed (4800 or 9600 b/s) must
be the same for all stations in a network.
2.  Unless otherwise noted, the default setting
of station type is  “master” and data delivery
is “all”.
3.  Transmission of online diagnostics may be
enabled or disabled at any station or stations
without affecting their ability to commun-
icate with other stations.
1.10.4  Point to Point System
 
A simple point to point connection is shown
below: