BB-ZP9D115RMLR-A Radio Modem
28
CT (Command Mode Timeout)
Command
<Command Mode Options> The CT
command is used to set and read
the amount of inactive time that
elapses before the module
automatically exits from AT
Command Mode and returns to Idle
Mode.
Use the CN (Exit AT Command
Mode) command to exit AT
Command Mode manually.
DB (Received Signal Strength)
Command
<Diagnostics> DB Command is used
to read the receive signal strength
(in decibels relative to milliWatts) of
the last received packet. This
parameter is useful in determining
range characteristics of the Zlinx Radio Modems under various conditions.
In default mode, this command shows the power level in signed decimal format with the
units (dBm). If CF = 1, the magnitude of the value is presented in unsigned hex. If CF = 2,
the value is presented in decimal, but without the units.
Sample Output: -88 dBm (when ATCF = 0)
58 (when ATCF = 1)
-88 (when ATCF = 2)
Note
: If the DB register is read before the module has received an RF packet, the module
will return a value of 0x8000 (which means an RF packet has not yet been received).
DT (Destination Address)
Command
<Networking & Security> DT
Command is used to set/read the
networking address of an RF
module. The modules utilize three
filtration layers: Vendor ID Number
(ATID), Channel (ATHP), and
Destination Address (ATDT). The
DT command assigns an address to
a module that enables it to
communicate only with other
modules having the same address. All modules that share the same DT parameter can
communicate with each other.
Zlinx Radio Modems in the same network with a different destination address (than that of
the transmitter) will listen to all transmissions to stay synchronized, but will not send any of
the data out their serial ports.
AT Command: ATCT
Binary Command: 0x06 (6 decimal)
Parameter Range: 2 - 0xFFFF [x 100
milliseconds]
Default Parameter Value: 0xC8 (200d)
Number of Bytes Returned: 2
Related Command: CN (Exit AT Command
Mode)
AT Command: ATDB
Binary Command: 0x36 (54 decimal)
Parameter Range (read-only): 0x6E - 0x28 (-110
to -40 Decimal)
Number of Bytes Returned: 2
AT Command: ATDT
Binary Command: 0x00
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0
Number of Bytes Returned: 2
Related Commands: HP (Hopping Channel), ID
(Modem VID), MK (Address Mask), MY (Source
Address)