Digi XBee S2C 802.15.4 Manuale utente

XBee/XBee-PRO S2C 802.15.4

Radio Frequency (RF) Module

User Guide

Revision history—90001500

Revision Date Description

G May 2018 Added note on range estimation. Changed ICto ISED.

H June 2018 Changes to the Active Scan command.

J May 2019 Removed Brazilian certification information.

K May 2019 Added FCC publication 996369 related information.

L July 2019 Added the NPcommand. Added RS-485 support.

Trademarks and copyright

Digi, Digi International, and the Digi logo are trademarks or registered trademarks in the United

States and other countries worldwide. All other trademarks mentioned in this document are the

property of their respective owners.

Disclaimers

Information in this document is subject to change without notice and does not represent a

commitment on the part of Digi International. Digi provides this document “as is,” without warranty of

any kind, expressed or implied, including, but not limited to, the implied warranties of fitness or

merchantability for a particular purpose. Digi may make improvements and/or changes in this manual

or in the product(s) and/or the program(s) described in this manual at any time.

Warranty

To view product warranty information, go to the following website:

www.digi.com/howtobuy/terms

Customer support

Gather support information: Before contacting Digi technical support for help, gather the following

information:

Product name and model

Product serial number (s)

Firmware version

Operating system/browser (if applicable)

Logs (from time of reported issue)

Trace (if possible)

Description of issue

Steps to reproduce

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide 2

Contact Digi technical support: Digi offers multiple technical support plans and service packages.

Feedback

To provide feedback on this document, email your comments to

techcomm@digi.com

Include the document title and part number (XBee/XBee-PRO S2C 802.15.4 RF Module User Guide,

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XBee/XBee-PRO S2C 802.15.4 RF Module User Guide 3

Contents

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide

Applicable firmware and hardware 11

Technical specifications

Performance specifications 13

Power requirements 13

General specifications 14

Regulatory conformity summary 14

Serial communication specifications 15

UART pin assignments 15

SPI pin assignments 15

GPIO specifications 15

Hardware

Antenna options 18

Mechanical drawings 18

Mounting considerations 19

Pin signals 20

Notes 23

Design notes 23

Power supply design 23

Board layout 23

Antenna performance 23

Keepout area 24

RF pad version 26

Configure the XBee/XBee-PRO S2C 802.15.4 RF Module

Software libraries 30

Configure the device using XCTU 30

Over-the-air (OTA) firmware update 30

XBee Network Assistant 30

XBee Multi Programmer 31

Modes

Serial modes 33

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide 4

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide 5

Transparent operating mode 33

API operating mode 33

Command mode 34

Transceiver modes 36

Idle mode 36

Transmit mode 36

Receive mode 36

Operation

Addressing 38

Send packets to a specific device 38

Addressing modes 38

Encryption 38

Maximum payload 40

Maximum payload rules 40

Maximum payload summary tables 41

Work with Legacy devices 41

Networking 42

MAC Mode configuration 42

XBee retries configuration 43

Transmit status based on MAC mode and XBee retries configurations 43

Peer-to-peer networks 44

Master/slave networks 44

Clear Channel Assessment (CCA) 48

CCA operations 48

Serial interface 49

Select a serial port 49

UART data flow 50

Flow control 51

SPI operation 52

SPI signals 52

SPI parameters 53

SPI and API mode 53

Full duplex operation 53

Slave mode characteristics 54

I/O support 54

Digital I/O line support 55

Analog input 55

On demand I/O sampling 55

Periodic I/O sampling 57

Change Detect I/O sampling 58

Wakeup I/O sampling 59

Sample rate (interval) 59

I/O line passing 59

Output control 60

Sleep support 60

Sleep modes 60

Sleep parameters 61

Sleep current 62

Sleep pins 62

Direct and indirect transmission 62

Node discovery 63

Node discovery in compatibility mode 64

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide 6

Directed node discovery 64

Directed node discovery in compatibility mode 64

Destination Node 64

Remote configuration commands 65

Send a remote command 65

Apply changes on remote devices 65

Remote command responses 65

AT commands

Special commands 67

WR (Write) 67

RE (Restore Defaults) 67

FR (Software Reset) 67

Networking and security commands 67

C8 (802.15.4 Compatibility) 67

CH (Operating Channel) 69

ID (Network ID) 69

DH (Destination Address High) 69

DL (Destination Address Low) 70

MY (Source Address) 70

SH (Serial Number High) 70

SL (Serial Number Low) 70

MM (MAC Mode) 71

RR (XBee Retries) 71

RN (Random Delay Slots) 72

ND (Network Discovery) 72

NT (Node Discover Timeout) 73

NO (Node Discovery Options) 73

DN (Discover Node) 74

CE (Coordinator Enable) 74

SC (Scan Channels) 75

SD (Scan Duration) 75

A1 (End Device Association) 76

A2 (Coordinator Association) 77

AI (Association Indication) 78

DA (Force Disassociation) 78

FP (Force Poll) 78

AS (Active Scan) 79

ED (Energy Detect) 80

EE (Encryption Enable) 80

KY (AES Encryption Key) 81

NI (Node Identifier) 81

NP (Maximum Packet Payload Bytes) 81

RF interfacing commands 82

PL (TX Power Level) 82

PM (Power Mode) 83

CA (CCA Threshold) 83

Sleep commands 83

SM (Sleep Mode) 84

ST (Time before Sleep) 84

SP (Cyclic Sleep Period) 84

DP (Disassociated Cyclic Sleep Period) 85

SO (Sleep Options) 85

Serial interfacing commands 85

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide 7

BD (Interface Data Rate) 86

NB (Parity) 87

RO (Packetization Timeout) 87

D7 (DIO7/CTS) 87

D6 (DIO6/RTS) 88

AP (API Enable) 88

I/O settings commands 89

D0 (DIO0/AD0) 89

D1 (DIO1/AD1) 89

D2 (DIO2/AD2) 90

D3 (DIO3/AD3) 90

D4 (DIO4) 91

D5 (DIO5/ASSOCIATED_INDICATOR) 91

D8 (DIO8/SLEEP_REQUEST) 92

P0 (RSSI/PWM0 Configuration) 92

P1 (PWM1 Configuration) 93

P2 (SPI_MISO) 93

M0 (PWM0 Duty Cycle) 94

M1 (PWM1 Duty Cycle) 94

P5 (SPI_MISO) 94

P6 (SPI_MOSI Configuration) 95

P7 (SPI_SSEL ) 95

P8 (SPI_SCLK) 95

P9 (SPI_ATTN) 96

PR (Pull-up/Down Resistor Enable) 96

PD (Pull Up/Down Direction) 97

IU (I/O Output Enable) 97

IT (Samples before TX) 97

IS (Force Sample) 98

IO (Digital Output Level) 98

IC (DIO Change Detect) 98

IR (Sample Rate) 99

RP (RSSI PWM Timer) 99

I/O line passing commands 99

IA (I/O Input Address) 99

T0 (D0 Timeout) 100

T1 (D1 Output Timeout) 100

T2 (D2 Output Timeout) 100

T3 (D3 Output Timeout) 100

T4 (D4 Output Timeout) 101

T5 (D5 Output Timeout) 101

T6 (D6 Output Timeout) 101

T7 (D7 Output Timeout) 101

PT (PWM Output Timeout) 101

Diagnostic commands 102

VR (Firmware Version) 102

VL (Version Long) 102

HV (Hardware Version) 102

DB (Last Packet RSSI) 102

EC (CCA Failures) 103

EA (ACK Failures) 103

DD (Device Type Identifier) 103

Command mode options 104

CT (Command mode Timeout) 104

CN (Exit Command mode) 104

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide 8

AC (Apply Changes) 104

GT (Guard Times) 104

CC (Command Character) 105

Operate in API mode

API mode overview 107

API frame specifications 107

API operation (AP parameter = 1) 107

API operation-with escaped characters (AP parameter = 2) 107

Start delimiter 108

Length 108

Frame data 108

Checksum 109

Calculate and verify checksums 109

Escaped characters in API frames 110

Frame descriptions 111

64-bit Transmit Request - 0x00 111

16-bit Transmit Request- 0x01 113

Local AT Command Request - 0x08 115

Queue Local AT Command Request - 0x09 117

Remote AT Command Request - 0x17 119

Description 122

Format 122

Examples 123

16-bit Receive Packet - 0x81 124

64-bit I/O Sample Indicator - 0x82 126

16-bit I/O Sample Indicator - 0x83 128

Description 130

Examples 131

Transmit Status - 0x89 132

Modem Status - 0x8A 135

Modem status codes 136

Remote AT Command Response- 0x97 138

Regulatory information

United States (FCC) 142

OEM labeling requirements 142

FCC notices 142

FCC-approved antennas (2.4 GHz) 144

RF exposure 156

FCC publication 996369 related information 156

Europe (CE) 157

Maximum power and frequency specifications 157

OEM labeling requirements 157

Listen Before Talk requirement 158

Declarations of conformity 158

Antennas 158

ISED (Innovation, Science and Economic Development Canada) 159

Labeling requirements 159

For XBee S2C surface-mount 159

For XBee-PRO S2C surface-mount 159

For XBee S2C through-hole 159

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide 9

For XBee-PRO S2C through-hole 159

Transmitters for detachable antennas 159

Detachable antenna 160

Australia (RCM) 160

South Korea 160

Load 802.15.4 firmware on ZB devices

Background 166

Load 802.15.4 firmware 166

Migrate from XBee through-hole to surface-mount devices

Pin mapping 169

Mount the devices 170

PCB design and manufacturing

Recommended solder reflow cycle 173

Recommended footprint and keepout 173

Flux and cleaning 175

Rework 175

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide

XBee/XBee-PRO S2C 802.15.4 RF Modules are embedded solutions providing wireless end-point

connectivity to devices. These devices use the IEEE 802.15.4 networking protocol for fast point-to-

multipoint or peer-to-peer networking. They are designed for high-throughput applications requiring

low latency and predictable communication timing.

There are two footprints for the XBee/XBee-PRO S2C 802.15.4 RF Module hardware: through-hole

(TH) and surface-mount (SMT). TH devices include a 20-pin header and require the placement of two

1x10 sockets on the carrier board for mounting the device. SMT devices include 37 pads. They are

placed directly on the carrier board, which means they do not require holes or sockets for mounting.

The TH version may be useful for prototyping and production, but we recommend SMT for high-volume

applications, as the component can be placed automatically by a pick-and-place machine and you save

the cost of a socket on each board.

The XBee/XBee-PRO S2C 802.15.4 RF Module supports the needs of low-cost, low-power wireless

sensor networks. The devices require minimal power and provide reliable delivery of data between

devices. The devices operate within the ISM 2.4 GHz frequency band.

The XBee/XBee-PRO S2C 802.15.4 RF Module uses S2C hardware and the Silicon Labs EM357 chipset.

As the name suggests, the 802.15.4 module is over-the-air compatible with our Legacy 802.15.4

module (S1 hardware), and the TH versions of the new product are also form factor compatible with

designs that use the Legacy module.

Note OTA capability is only available when MM (Mac Mode)= 0 or 3

Applicable firmware and hardware 11

XBee/XBee-PRO S2C 802.15.4 RF Module User Guide 10

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