User's Manual

Table Of Contents
Waveport CF user manuel Coronis Systems
Commands related to radio frame exchanges
Radio exchanges are composed of several transmission/reception modes. In some cases it is possible to
receive several consecutive radio frames (multi-frame mode which is accessible in reception only).
The following modes allow point-to-point exchange:
Frame exchange mode Waveport CF sends a request and waits for a response from remote
module.
Following the radio frame sending, the Waveport CF radio board stay in
radio reception during a time (fixed by default at 2s, cf.
RADIO_USER_TIMEOUT) in order to receive the response from the
addressed equipment. During this time the serial RS232 link is not
managed. This command is particularly intended to read CORONIS
SYSTEMS radio modules used to collect remote information (temperature,
humidity, meters index, ...).
Message mode Waveport CF sends a request without waiting for a response from
the remote module.
After sending a frame, the Waveport CF radio board goes back to listening
on the serial RS232 link. This command may be used for simple data
transfer between Wavenis modules.
Relay mode When a remote module is beyond a transmitting module's radio range, relay
mode may be used to forward frames via intermediate nodes (repeaters).
The maximum number of repeaters is 3.
The modes below allow selective and non-selective exchange with several remote modules at once:
Polling This mode is used to address requests to a known list of remote modules.
Responses are sent to the host that issued the request when all remote
modules have responded, or after a time-out.
The list of remote modules is configured with a parameter setting
command(see chapter 3).
Broadcast This mode allows a Waveport CF to issue a request to all remote modules
within radio range of the transmitter. Broadcast may also be limited to a
selected group of modules.
Multi-frame reception This is a particular case in which multi-frame exchange takes place between
a Waveport CF or Waveport module (considered to be the master of the
exchange) and another Wavenis-based telemetry module, such as
Wavetherm, Waveflow, Wavesense, etc.
Note: Waveport CF does not currently allow multi-frame mode between two
Waveport CF/Waveport modules.
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