B&B Electronics Zlinx ZP Series - Manual (Page 60)

56 Manual Documentation Number: ZP24D-250RM-SR-2508
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received. The PWM output will also be set low at power-up until the first RF packet is
received. A parameter value of 0xFF permanently enables the PWM output and it will
always reflect the value of the last received RF packet.
RR Command
<Networking {Addressing}> The
RR command is used set/read the
maximum number of retries the
module will execute in addition to
the 3 retries provided by the
802.15.4 MAC.
This values does not need to be set on all modules for retries to work. If retries are
enabled, the transmitting module will set a bit in the B&B RF Packet header which
requests the receiving module to send an ACK (acknowledgement). If the transmitting
module does not receive an ACK within 200 msec, it will re-send the packet within a
random period up to 48 msec. Each retry can potentially result in the MAC sending
the packet 4 times (1 try plus 3 retries). Note that retries are not attempted for packets
that are purged when transmitting with a Cyclic Sleep Coordinator.
SC (Scan Channels) Command
<Networking {Association}> The
SC command is used to set and
read the list of channels to scan
for all Active and Energy Scans as
a bit field.
This affects scans initiated in
command mode [AS (Active Scan)
and ED (Energy Scan) commands]
and during End Device Association
and Coordinator startup.
bit 0 - 0x0B
bit 4 - 0x0F bit 8 - 0x13 bit 12 - 0x17
bit 1 - 0x0C bit 5 - 0x10 bit 9 - 0x14 bit 13 - 0x18
bit 2 - 0x0D bit 6 - 0x11 bit 10 - 0x15 bit 14 - 0x19
bit 3 - 0x0E bit 7 - 0x12 bit 11 - 0x16 bit 15 - 0x1A
SD (Scan Duration) Command
<Networking {Association}> The
SD command is used to set and
read the exponent value that
determines the duration (in time) of
a scan.
End Device (Duration of Active
Scan during Association) - In a
Beacon system, set SD = BE of
the Coordinator. SD must be set at least to the highest BE parameter of any
Beaconing Coordinator with which an End Device or Coordinator wish to discover.
AT Command: ATRR
Parameter Range: 0 - 6
Default: 0
Minimum Firmware Version Required: 1.xA0
AT Command: ATSC
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0x1FFE
Related Commands: ED (Energy Scan), SD (Scan
Duration)
Minimum Firmware Version Required: v1.x80
AT Command: ATSD
Parameter Range: 0 - 0x0F
Default Parameter Value: 4
Related Commands: ED (Energy Scan), SC
(Scan Channel)
Minimum Firmware Version Required: v1.x80