Operating instructions
1892 1335 - Orion Radio Modem Operating Instructions - v2.9 / Aug 2009 23
Mode L Parameters
Unit ID (ATS170) The Base is defined by being given the UnitID 0.
Outstations should be given Unit IDs from 1 up to the number of
Outstations, maximum 254, and must be contiguously numbered.
Dest ID
(Destination for
messages which
the unit initiates)
(ATS171)
During normal polling, this setting is ignored: the destination is
dynamically controlled by the Base, and Outstation replies always go
back to the sender.
If alarm messages are sent, Outstations must be set to DestID = 0 to
contact the Base.
Group ID (ATS169) Grouping may be used as for the other modes. Any number between
1 and 254, all units the same within the Group.
Poll Timer time
(ATS183)
The Base station waits for this period between the end of one
sequence of polling all its Outstations and the start of the next
sequence. If the period is 0, it polls continuously. The poll timer
period can be up to 182 hours (just over a week).
Outstations do not check for a poll in this mode.
Number of
Outstations
(ATS189)
(Base only)
The number of Outstations which the Base station polls in its
sequence. The poll is contiguous, starting with UnitID=1 and ending
with this number as UnitID. Not applicable to Outstations.
Serial port
(ATS173)
(Base only)
The data collected by the Base during the poll can be output either
on the normal User Data port (Port A) to customer equipment, or to
the GUI on Port B. Outstations always use Port A to collect the data.