User's Manual
Table Of Contents
- 1. INTRODUCTION
- 2. RS232 SERIAL PROTOCOL PRESENTATION
- 3. setting the internal parameters of the wavecard
- 3.1- Configuration of the functional parameters
- 3.2- Configuration of the control parameters
- 3.2.1 - selection of the radio operating channel when FHSS is deselected
- 3.2.2 - Selection of the RF medium physical mode
- 3.2.3 - Selection of the radio board emission power
- 3.2.4 - Activation of the Wavenis RF Asic RSSI threshold autocorrection
- 3.2.5 - Selection of the serial baudrate.
- 3.2.6 - Reading the firmware version of the WaveCard
- 3.2.7 - Reading the RSSI level (Received Signal Strengh Indicator)
- 3.2.8 - TEST Mode
- 4. SERVICE COMMANDS
- 5. COMMUNICATION MODES
- 5.1- 'Frame Exchange’ Mode
- 5.2- 'Message’ Mode
- 5.3- ’Polling’ Mode
- 5.4- ’Broadcast’ mode
- 5.4.1 - Configuration of the parameters relating to the 'Broadcast' mode
- 5.4.2 - 'BroadCast' mode without waiting for a response
- 5.4.3 - 'BroadCast' mode with waiting for responses
- 5.4.4 - Format of the commands – from the request transmitter side
- 5.4.5 - Format of the commands – from the request receiver side
- 5.4.6 - Use of the selective, or not-selective broadcast mode
- 5.5- ’Multi frames' Mode
Document : WCAMODHEL.sxw
➢ Commands relating to radio exchanges
The radio exchanges are composed of several modes of transmission/reception. With in certain cases, the
possibility of receiving several consecutive radio frames (multi frames mode, accessible in reception only).
The following modes allow point-to-point exchanges :
’Frame Exchange’ mode : This mode allows to emit a request, with waiting of a radio response
from the distant equipment.
Following the radio frame sending, the Wavecard 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 : allows to emit a request, without waiting of a radio response from the distant
equipment.
After radio frame emission, the Wavecard radio board is listening again the serial RS232 link. This
command is suited to a simple data transfer between several Wavecard equipments.
Moreover exchanges of the point-to-point types have an additional mode which allow to reach a module out
of radio range of the transmitter, by relaying the frames via other equipments.
'Relaying' mode : this functionality allow to use a radio equipment to repeat a frame which is not
initially intended to him.
This functionality is used when the transmitter equipment, and the recipient of the request are out of
radio range. The maximum number of repeaters is limited to 3.
The remaining modes allow exchanges with several distant equipments, in a selective way or not.
‘Polling’ mode : allows to address a request to a list of known distant equipment. The response
is sent to the host, transmitter of the request, when all the distant equipment responded, or on time-
out.
In this case, the list of the distant equipments is configured via a command of parameter setting (see
chapter 3)
’Broadcast’ mode : allows to address a request to all the distant equipment within radio range
of the transmitter, or only to a group of equipment in radio range of the transmitter.
Particular Case: multi-frames reception
Multi frame mode allows multi frame exchange between the Wavecard/Waveport (considered like the
master of the exchange) and one of the telemetry equipments of the Coronis Systems product family
( WaveTherm, WaveFlow, WaveSens, ...).
Current version of Wavecard does not allow multi frame mode between two Wavecard/Waveport
equipments.
WCAMODHEL Handbook page 11 of 74