AT commands Diagnostic commands - MAC statistics and timeouts
XBee®/XBee-PRO SX RF Module User Guide
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ER (Receive Count Error)
This count increments when a device receives a packet that contains integrity errors of some sort.
When the number reaches 0xFFFF, the firmware does not count further events.
To reset the counter to any 16-bit value, append a hexadecimal parameter to the command. This
value is volatile (the value does not persist in the device's memory after a power-up sequence).
Occasionally random noise can cause this value to increment.
The ER parameter is not reset by pin, serial port or cyclic sleep modes.
Default
N/A
GD (Good Packets Received)
This count increments when a device receives a good frame with a valid MAC header on the RF
interface. Received MAC ACK packets do not increment this counter. Once the number reaches
0xFFFF, it does not count further events.
To reset the counter to any 16-bit unsigned value, append a hexadecimal parameter to the command.
This value is volatile (the value does not persist in the device's memory after a power-up sequence).
Parameter range
0 - 0xFFFF
N/A
EA (MAC ACK Failure Count)
This count increments whenever a MAC ACK timeout occurs on a MAC-level unicast. When the number
reaches 0xFFFF, the firmware does not count further events.
To reset the counter to any 16-bit unsigned value, append a hexadecimal parameter to the command.
This value is volatile (the value does not persist in the device's memory after a power-up sequence).
Parameter range
0 - 0xFFFF
N/A
TR (Transmission Failure Count)
This value is volatile (the value does not persist in the device's memory after a power-up sequence).
Parameter range
0 - 0xFFFF
Default
N/A
UA (Unicasts Attempted Count)
The number of unicast transmissions expecting an acknowledgment (when RR > 0).
This value is volatile (the value does not persist in the device's memory after a power-up sequence).
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