Manual Documentation Number: ZPXXx-XXXXx-MR-0812
49
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TR (Transmit Error Count)
Command
<Diagnostics> Read number of
retransmit failures. The
number of retransmit errors is
incremented each time a
packet is not acknowledged
within the number of
retransmits specified by the
RR (Retries) parameter. It
therefore counts the number of packets that were not successfully received and have
been dropped.
The TR parameter is not non-volatile and therefore is reset to zero each time the
module is reset.
TT (Streaming Limit)
Command
<Networking & Security>
Set/Read the number of bytes
that can be sent out before a
random delay is issued. TT
Command is used to simulate
full-duplex behavior.
If a module is sending a continuous stream of RF data, a delay is inserted
(transmission is stopped, allowing other modules time to transmit (once it sends
number of bytes specified by TT Command). Inserted random delay lasts between 1
& „RN + 1‟ delay slots, where each delay slot lasts 38 ms.
VR (Firmware Version)
Command
<Diagnostics> Read the
Firmware Version of the
module.
WR (Write) Command
<(Special)> WR Command
writes configurable parameters
to the module‟s non-volatile memory (Parameter values remain in the module‟s
memory until overwritten by future use of WR Command).
If changes are made without writing them to non-volatile memory, the module reverts
back to previously saved parameters the next time the module is powered-on.
AT Command: ATTR
Binary Command: 0x1B (27 decimal)
Parameter Range: 0
– 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Related Commands: RR (Retries)
Minimum Firmware Version Required: 4.22
AT Command: ATTT
Binary Command: 0x1A (26 decimal)
Parameter Range: 0
– 0xFFFF [bytes]
Default Parameter Value: 0xFFFF (65535d)
Number of bytes returned: 2
Related Commands: RN (Delay Slots)
Minimum Firmware Version Required: 4.22
AT Command: ATVR
Binary Command: 0x14 (20 decimal)
Parameter Range: 0
– 0xFFFF [read-only]
Number of bytes returned: 2
AT Command: ATWR
Binary Command: 0x08