Product manual

XBee®/XBee‐PRO®RFModules‐802.15.4‐v1.xEx[2009.09.23]

©2009DigiInternatonal,Inc. 34

*Firmwareversioninwhichthecommand wasfirstintroduced(firmwareversionsarenumberedinhexadecimalnotation.)

HV (v1.x80*) Diagnostics Hardware Version. Read hardware version of the RF module. 0 - 0xFFFF [read-only] Factory-set

DB Diagnostics

Received Signal Strength. Read signal level [in dB] of last good packet received

(RSSI). Absolute value is reported. (For example: 0x58 = -88 dBm) Reported value is

accurate between -40 dBm and RX sensitivity.

0x17-0x5C (XBee)

0x24-0x64 (XBee-PRO)

[read-only]

EC (v1.x80*) Diagnostics

CCA Failures. Reset/Read count of CCA (Clear Channel Assessment) failures. This

parameter value increments when the module does not transmit a packet because it

detected energy above the CCA threshold level set with CA command. This count

saturates at its maximum value. Set count to “0” to reset count.

0 - 0xFFFF -

EA (v1.x80*) Diagnostics

ACK Failures. Reset/Read count of acknowledgment failures. This parameter value

increments when the module expires its transmission retries without receiving an ACK

on a packet transmission. This count saturates at its maximum value. Set the parameter

to “0” to reset count.

0 - 0xFFFF -

ED (v1.x80*) Diagnostics

Energy Scan. Send ‘Energy Detect Scan’. ED parameter determines the length of scan

on each channel. The maximal energy on each channel is returned and each value is

followed by a carriage return. Values returned represent detected energy levels in units

of -dBm. Actual scan time on each channel is measured as Time = [(2 ^ SD) * 15.36]

ms. Total scan time is this time multiplied by the number of channels to be scanned.

0 - 6 -

Tabl e3‐07. XBee®/XBee‐PRO®Com mands‐Diagnostics

Command