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Offline diagnostics are sent upon receipt of a
command from the Integra RDS, normally when
the host application is stopped or taken offline.
Since diagnostics transmissions are not under
the control of the SCADA user protocol, tempo-
rary network disruption will occur if both are
attempted simultaneously.

 

Each Integra-TR is associated with three identi-
fication numbers (addresses):

 

ESN: The Electronic Serial Number is uniquely

assigned to each Integra-TR at time of manu-
facture and cannot be changed. It is identical
to the serial number printed on the label of the
unit. Integra-T uses this number for ident-
ification only; it does not form part of the on–
air protocol. The ESN of a remote unit may be
viewed with the RDS by doing a Remote GET.

 

Short ID: The short ID (maximum value of 254)

is used to identify Integra-TR for purposes of
diagnostics (both online and offline), remote
configuration and commands. The default
value of the short ID (set at factory) is calcu-
lated from the ESN. This value may be
changed via the Integra RSS. It is important
that all stations within a communicating group
have unique short IDs.

 

Station Type: This is a 1-bit value used to iden-

tify the station as a master or remote. See
2.5.7 below.

 

On a simplex Integra-TR network, all remote
stations can hear the master, and many remote
stations can hear each other. Certain SCADA
user protocols are designed with the assumption
that remote stations can not hear the responses
to polls made by other remote stations.

 

To allow operation with such protocols in sim-
plex networks, Integra-TR has a simple ad-
dressing scheme. Stations may be designated as
master or remote. This sets a flag in the header
identifying the type of the originating station.

 

On the receive side, Integra-TR stations can be
set to accept all data, or accept data only if it
originates from a station of the opposite type
(selective). This choice is made by setting Data
Delivery to selective or all using the RSS.

 

Online diagnostics, if enabled, are included with
every data transmission.  Online diagnostics do
not interfere with normal network operation.
The following information is gathered and de-
livered via the Setup port:

•

  Unit’s “short ID”

•

  Inside case temperature: degrees C

•

  Supply voltage (B+): tenths of a volt

•

  Local received signal strength: dBm

•

  Remote received signal strength: dBm

•

  Forward power: tenths of a watt

•

  Reverse power: good / poor

•

  Receive quality: based on last 15 data

blocks received.

The Setup port communicates with the RDS
using a proprietary protocol that is not docu-
mented in this manual. However, if a terminal,
or a PC running terminal software, is connected
to the Setup port, online diagnostic information
will be delivered in plain ASCII form.

For the purposes of the following discussion we
will refer to the proprietary data format as
RSS/RDS mode.

When Integra-TR is powered on, it will attempt
to establish a link with the RSS/RDS and select
its output mode as follows:

1.  If RTS is not exerted on the setup port, Inte-

gra-T will immediately switch to ASCII
mode.

2.  If RTS is exerted on the setup port, Integra-

T will send an initialization message in
RSS/RDS mode and wait for the proper re-
sponse form the RSS or RDS.