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Programmable I/O Lines
TM8000 3DK Hardware Developer’s Kit
Application Manual
September 2003
© Tait Electronics Ltd
3.2.11
Control Status Rx (Line 1 to 3)
These three output signals indicate that a call has been received which
contains a pre-defined status code, causing the signal to either activate or
deactivate. Up to three separate signals may be defined, each having unique
activation and deactivation status control codes.
These outputs may be used in SCADA type systems to remotely control
application devices by radio command. Example applications might include
remote activation or deactivation of outstation equipment (beacons, pumps,
generators etc.) from a central control point.
Configuration
1.
Set up the radio to operate with Selcall on the intended operating
channel.
2.
Set an alert and/or a delay (in Detailed tab of the Selcall / Selcall
Identity form).
3.
Define the required control status values to activate and deactivate the
desired control status signal (in the Selcall / Control Status form).
4.
Configure an output line and associate it with this action. Set the
active state to be high or low (as required).
Note
This signal state of this signal can be set to latching only.
Timing
The control status signal will respond within 2 ms of receiving the last digit
of the call sequence. If an alert and/or delay is configured, 500 ms for the
alert and/or the programmed delay will be added to the response time.
Description
The output signal is activated upon reception of a valid Selcall sequence
containing the pre-defined control activation status value.
The signal remains active until another valid Selcall sequence is received
which contains the pre-defined control deactivation status value.
Related Actions
None.