TIAMIS-800 wireless radio transceiver
User Manual. Ver. 1.3
DOUM0003AA
Page 16 of 35
•
Each Slave in the network must have their
NetworkID
and their
AddressMask
matching the corresponding Master’s settings.
•
Selected Master’s hopping pattern,
HopTableLength
,
and the options selected for
each of the hopping channels must be repeated on all of the Slave units in the
network.
The settings ignored by the Master radio:
•
ACKRequired
.
•
Receipient_UnitID
.
•
BytesThreshold
.
•
FrameToWait
.
3.4.3. Functionality of the Slave in a TDMA network
A Slave radio can send a new packet of data over the RF channel only if the all of the
following conditions are met:
•
The link is On.
•
The number of bytes in the Slave’s input buffer is greater than or equal to the
BytesThreshold
settings OR if the Slave did not send RF packets for longer than
FramesToWait
number of frames and its input buffer has at least one byte of the
user’s data in it.
•
The last packet it received from the Master was Global_Packet or Local_Packet
addressed to this Slave.
The Slave will transmit only during its transmit frames.
For the firmware version 1106.e and prior the
ACKRequired
settings on the Slave should
always be “Off”. Therefore, with each RF packet sent, the Slave will not expect any
acknowledgements back from the Master.
The Slave transceiver will send each RF packet once and will repeat it
PacketRepeat
times.
The Slave will loose a link to the Master if it does not hear the Master’s transmissions for
TimeoutRetries
consecutive receive frames. Once the link is lost, the Slave will start
searching for the Master.
The Slave can link to the Master only if it hears the Master’s transmission and only if the
Master is transmitting Global_Packet(s) or Local_Packet(s) addressed to this Slave.
The Slave’s settings, which need to match the Master’s settings in the order for the
Slave to be able to operate in the network:
