Campbell Scientific RF401A-Series Spread Spectrum Radios - Manual (Page 29)

RF401A-Series Spread Spectrum Radio
11.1.2 SDC Address
Specifies the CS I/O port SDC address when Active Interface is set as CS I/O
SDC.
11.1.3 RS-232 Baud Rate
Specifies the baud rate that will be used on the RS-232 port when Active
Interface is set as RS-232. Other related advanced settings include RS-232
Parity, Stop Bits, Character Length, and Auto Power Down.
11.1.4 Protocol
Protocol Description
Transparent Provides a transparent link with no interpretation of the
data packet. This mode is most commonly used with
array based dataloggers, and it must be used when
communicating with other transparent devices such as
the RF400/410/415 and CR205/210/215. This mode is
also used for non PakBus® protocols like Modbus.
When used this way, Retry Level must be set to None.
PakBus Aware This is the most commonly used protocol setting for
PakBus® networks. The radio will automatically
inherit an RF identifier equal to the PakBus address of
the device it is serially attached to. In this mode, the
radio will be capable of performing RF level retries and
acknowledgements and provide a more reliable link
than Transparent mode used for broadcast messaging.
You do not need to manually set a unique RF Radio
Address or a unique PakBus Address. This device will
not appear in PakBus Graph.
PakBus Node This mode is similar to PakBus Aware, but it requires
the device to have a unique PakBus Address specified.
Because the radio is PakBus® addressable, status
information, such as RSSI, can be queried through a get
variables transaction. Additionally, if the radio is
connected to a PakBus router, it will also be viewable
in PakBus Graph and accessible by other remote
PakBus devices. If attached to a PakBus router,
network overhead will increase due the increase in
number of PakBus nodes in the network. If Active
Interface is also set to PakBus Router, this mode will
allow the device to function as a standalone RF
repeater. This setting must be used if Active Interface
is set as PakBus Router. This setting is most
commonly used when a user wants to a) use the device
as a standalone PakBus repeater, b) make the device
available remotely for viewing and editing settings, or
c) attach more than one radio to a single datalogger.
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