Mdlc And User Port Heaps - Motorola MOSCAD 68P02958C00-B User Manual

NO
YES
Event and Burst Password <Enable/Disable>
Enables the user to transmit events of bursts with a communication password.
The value of this parameter must be identical for all RTUs and the central unit.
Event and Burst Authentication <Enable/Disable>
For future use.
Broadcast (Group Call)
Broadcast (group call) Number of boxes <1-31>
The number of boxes allocated for storing frames that were broadcast from the central unit and
that are to be processed by the RTU.
The RTU scans the box queue with intervals of 1 second, and updates the Qualifiers table
accordingly. Increase this value if the reception rate is greater than the queue scanning rate.
Broadcast (group call) Password <Enable/Disable>
This parameter enables you to decide whether it is allowed to receive frames that were
broadcast from the central unit without a password. Change the default if the central unit is
capable of broadcasting frames without a password.
Broadcast (group call) Authentication <Enable/Disable>
For future use.

MDLC and User Port Heaps

MDLC Buffers
Number of formatted buffers in TX-heap <50-1000>
The number of formatted buffers designed for RTU-to-RTU burst, event, burst seq, and event
seq transmissions, as well as for transmissions from MDLC applications such as Diagnostics,
Error Logger, Processes/Tables Monitor, Site Configuration and Downloader. If
DEVICE=HP_F_TX is emptied frequently, increase the value of this parameter.
!
WARNING
Each buffer consumes about 250 bytes of RAM.
Number of formatted buffers in RX-heap <50-1000>
The number of formatted buffers designed for RTU-to-RTU burst, event, burst seq, and event
seq receptions, as well as for receptions from broadcasts and MDLC applications such as
There is no need for ACK from the central unit at RTU/Central Unit level. The
system relies on Data Link ACK (at From/To level).
The system requires that the central unit issues ACK to the RTU (RTU/Central
Unit level), in addition to Data Link ACK.
5-50
Site Configuration
[Enable]:
[Enable]:
[6]:
[Enable]:
[Enable]:
[500]:
[400]: