Introduction
1.4
Mappings
1.4.1 Overview
Mappings let you configure which signals are sent to which outputs. Mappings are
triggered by a change of state and on a configurable time basis.
The change of state required to trigger a change is known as the input sensitivity. If
the input value is noisy or variable you can set a higher value to reduce the number of
messages sent over the radio network.
Analogue signals can be mapped to digital outputs by using setpoints.
For more complicated applications, you can map one input to multiple outputs (which
can be on different Receiver modules).
1.4.2 Setpoints
The setpoints allow you to map an analogue value (like the Temperature) to a digital
(on/off) output. Setpoints consist of a ‘High’ and a ‘Low’ setpoint value. The alarm
turns ‘on’ as the signal drops below the ‘Low’ value and turns ‘off’ when it moves
above the ‘High’ value (effectively acting as a ‘Low’ alarm type).
You can either program up to ten setpoint pairs into the Transmitter module and use
the configuration software and use the front panel rotary switch to select between
them, or you can simply set a single pair of values.
1.4.3 Pulse inputs
Normally the state of a digital input is mapped directly to a digital output. However,
when you use a ‘pulsed input’ to count the number of pulses, the Transmitter uses the
count to increment an internal ‘count’ register. You can then map the register value to
a digital output on a Receiver. The receiver will then send as many pulses out as the
count indicates.
There is also a sensitivity setting for pulsed inputs which sets the change in count
required to trigger the mapping.
1.5
Network settings
System Address Sets the unique address for a group of modules. A system can have
multiple receiver and transmitter units with inputs mapped to multiple receivers or
receiver outputs mapped to inputs on several different transmitters.
Unit address
- Sets the unique address for a WL-TX/RX-900 module on a
network. Select a number between 1 and 95.
Secondary address
- There is also an option to set a secondary address for
each Transmitter unit, so that you can have more than 95 Transmitter units on a
network.
Security code
- When security is enabled the WL-TX/RX-900 network uses the
security code to encrypt all transmitted radio messages.
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