Soft Pairing; Configuring An Attached Base Station; Asynchronous Operation And Logging - Mantracourt T24-ACMi-SA User Manual

Soft Pairing

Pairing by power cycling is absolute and will work under all circumstances. However, sometimes access to the
power supply of a module that you want to pair to can be restricted, a module 20 metres up a tower for example,
so the T24 Toolkit offers a way to soft pair.
To achieve this you need to know the radio channel and group key of the remote module and configure
the base station to match this. You must also know the unique ID of the module and armed with this you
can soft pair to the module. This works well with Receiver modules as they are not operating in low power modes
but the software does need to try and change Transmitter modules from their normal operation mode into
configuration mode therefore modules with transmission intervals greater than 5 seconds may be difficult to soft
pair to.
This may not always work reliably in high traffic or high noise environments because there are a lot of messages
that need to be sent between the base station and the remote module which can be upset by the presence of too
many other messages on the same radio channel. If a connection cannot be made then power cycle pairing may
be the only option.

Configuring an Attached Base Station

Because a base station is attached to your computer when you are using the T24 Toolkit you do not pair to it the
same way as with other T24 modules. To configure the base station using the Toolkit hold the shift key and click
the Pair button on the

Asynchronous Operation and Logging

Transmitters send their messages at a fixed user defined interval regardless of whether anything is listening. This
message interval is timed from when the Transmitter has been woken or powered on so there is no
synchronisation of when the actual measurement is taken between different transmitters.
If you are logging information from multiple Transmitters using multiple channel logging software you should be
aware of how the software will store and record values.
The software stores the message values as they arrive from each Transmitter and when a log is to be recorded it is
the last value received by each Transmitter that is used.
This means that the values that are recorded could have been measured at any point during the Transmitter
message interval.
For example, if there are 10 Transmitters operating at 333ms message interval then when the values are recorded
to the log file you can only be sure that those values had been recorded within 333ms of each other.
So if there is a requirement that recorded sets of readings are within a certain time of each other, then that time is
the maximum message interval that should be set for the Transmitters regardless of the actual log interval of the
software (Which should always be greater than the Transmitter message interval).
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T24 Telemetry User Manual