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XBee®/XBee‐PRO®SERFModules
©2009DigiInternational,Inc. 109
RF Interfacing
1.Nodetypesthatsupportthecommand:C=Coordinator,R=Router,E=EndDevice
VC
Verify Certificate.
Verify the presence of the certificate. This command is read only.
CRE 1 – 0x00: no
certificate present; 0x01:
certificate present
[read-only]
RFInterfacingCommands
AT
Command
Name and Description
Node
Type
1
Parameter Range Default
PL
Power Level. Select/Read the power level at which the RF module transmits conducted
power.
CRE
XBee
(boost mode disabled)
0 = -8 dBm
1 = -4 dBm
2 = -2 dBm
3 = 0 dBm
4 = +2 dBm
XBee-PRO
4 = 17 dBm
XBee-PRO
(International Variant)
4 = 10dBm
4
PM
Power Mode. Set/read the power mode of the device. Enabling boost mode will improve
the receive sensitivity by 1dB and increase the transmit power by 2dB
Note: Enabling boost mode on the XBee-PRO will not affect the output power. Boost
mode imposes a slight increase in current draw. See section 1.2 for details.
CRE
0-1,
0= -Boost mode disabled,
1= Boost mode enabled.
1
DB
Received Signal Strength. This command reports the received signal strength of the
last received RF data packet. The DB command only indicates the signal strength of the
last hop. It does not provide an accurate quality measurement for a multi-hop link. DB
can be set to 0 to clear it. The DB command value is measured in -dBm. For example if
DB returns 0x50, then the RSSI of the last packet received was
-80dBm.
CRE
0 - 0xFF
Observed range for
XBee-PRO:
0x1A - 0x58
For XBee:
0x 1A - 0x5C
SecurityCommands
AT
Command
Name and Description
Node
Type
1
Parameter Range Default
- Digi International Inc 1
- 11001 Bren Road East 1
- Minnetonka, MN 55343 1
- 877 912-3444 or 952 912-3444 1
- Contents 3
- 1.Overview 6
- Worldwide Acceptance 7
- Specifications 8
- Mechanical Drawings 9
- SIF Header Interface 10
- Mounting Considerations 10
- Pin Signals 11
- Design Notes 12
- Electrical Characteristics 13
- 2.ModuleOperation 14
- Serial Flow Control 15
- Serial Interface Protocols 15
- Modes of Operation 16
- TransmitModeSequence 17
- Receive Mode 18
- Sleep Mode 18
- 3.XBeeZigBeeNetworks 19
- Operating Channel 21
- Application Profiles 21
- Smart Energy Device Types 22
- Smart Energy Clusters 23
- Coordinator Operation 24
- Channel Selection 25
- PAN ID Selection 25
- Security Policy 25
- Persistent Data 25
- Key Establishment 25
- Permit Joining 26
- XBee Device Registration 26
- Resetting the Coordinator 28
- Leaving a Network 28
- Router Operation 29
- Router Network Connectivity 34
- Resetting the Router 34
- Example: Joining a Network 34
- End Device Operation 35
- Orphan Scans 37
- Parent Connectivity 38
- Resetting the End Device 38
- Channel Scanning 39
- Discovery 41
- Addressing 43
- Data Transmission 43
- Unicast Transmissions 44
- RF Packet Routing 46
- Link Status Transmission 47
- AODV Mesh Routing 48
- Many-to-One Routing 50
- Source Routing 50
- Encrypted Transmissions 54
- Maximum RF Payload Size 54
- Throughput 54
- ZDO Transmissions 55
- Sending a ZDO Command 56
- Transmission Timeouts 57
- Unicast Timeout 58
- Extended Timeout 58
- Transmission Examples 59
- 5.Security 61
- Frame Counter 62
- Message Integrity Code 62
- Network Key Updates 63
- APS Layer Security 63
- Message integrity Code 63
- APS Link Keys 63
- Trust Center 64
- Enabling Security 65
- Enabling APS Encryption 65
- XBee Security Examples 66
- 6.ManagingEndDevices 68
- End Device Poll Timeouts 69
- Packet Buffer Usage 69
- Non-Parent Device Operation 70
- XBee End Device Configuration 70
- Cyclic Sleep 72
- Transmitting RF Data 75
- Receiving RF Data 75
- Parent Verification 76
- Rejoining 76
- Putting it all Together 77
- Sleep Examples 78
- Device Discovery 80
- Commissioning Pushbutton 81
- Associate LED 81
- In this example , AI = 0x22 82
- 8.APIOperation 83
- MSB LSB 1 Byte 84
- API-specific Structure 84
- API UART Exchanges 85
- Supporting the API 86
- API Frames 87
- ZigBee Create Source Route 91
- AT Command Response 93
- Modem Status 93
- ZigBee Transmit Status 94
- ZigBee Explicit Rx Indicator 95
- Route Record Indicator 96
- this byte 99
- Example Description 101
- 3 to this 101
- 10.RFModuleSupport 113
- Invoke XBee Bootloader 114
- Send Firmware Image 114
- SIF Firmware Updates 114
- Writing Custom Firmware 115
- Detecting XBee vs. XBee-PRO 116
- Ensuring Optimal Output Power 116
- When sleeping (end devices): 117
- AppendixA:Definitions 118
- YAGI CLASS ANTENNAS 121
- OMNI-DIRECTIONAL ANTENNAS 121
- PANEL CLASS ANTENNAS 121
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