MINI RECEIVER WITH FIELD BUS
USER MANUAL
6-3
In the case of digital signals, each bit of a byte will correspond to a maneouvre channel, while the
analog signals will occupy a whole byte to provide the assigned numerical value.
In the observation field of the document, the relevant characteristics will be indicated for each case
that needs it.
6. RUNNING OPERATION
Once the configuration has been made and the system is running, the equipment will transmit the
information of each action that occurs in the controller. The information is requested by the bus master
to read it.
The link to the bus will be active from the moment that equipment is started and will keep the
manoeuvre information updated with every change that is communicated through the radio
transmitter. When the radio communication is cut off, the data will be initialized and the information
received by the master will be null for the digital and analog channels. The more significant bit of
BYTE1 for the data frame of the fieldbus communication will indicate the state of running or stopping
of the transmitting equipment. The logic value 1 shall be maintained for the entire period that the
device is running and shall become 0 at the time the equipment is stopped.
When the equipment is started up, many software checks are carried out, in case that fieldbus module
is not detected, the equipment will not start and wait until the fieldbus access is available to start the
normal operation of the equipment.
