Sena ProBee-ZE20S Series User manual

1ProBee-ZE20S Series User Guide Rev.0.1
ZigBee OEM Module
ProBee-ZE20S Series
User Guide
Sena Technologies, Inc.
Rev 0.1

2ProBee-ZE20S Series User Guide Rev.0.1
ProBee-ZE20S Series User Guide
Firmware version PTv1.X
Copyright
Copyright 2010 Sena Technologies, Inc. All rights reserved.
Sena Technologies reserves the right to make changes and improvements to its product without providing
notice.
Trademark
ProBee™ is a trademark of Sena Technologies, Inc.
Windows® is a registered trademark of Microsoft Corporation.
Ethernet® is a registered trademark of XEROX Corporation.
Notice to Users
When a system failure may cause serious consequences, protecting life and property against such
consequences with a backup system or safety device is essential. The user agrees that protection against
consequences resulting from system failure is the user's responsibility.
This device is not approved for life-support or medical systems.
Changes or modifications to this device not explicitly approved by Sena Technologies will void the user's
authority to operate this device.
Technical Support
Email: [e-mail]
Website: http://www.sena.com

3ProBee-ZE20S Series User Guide Rev.0.1
Contents
1 INTRODUCTION.......................................................................................................9
1.1 About This Document ..................................................................................................................... 9
1.2 Overview......................................................................................................................................... 9
2 GETTING STARTED............................................................................................... 11
2.1 Hardware Installation.................................................................................................................... 11
2.1.1 Development Board Layout...................................................................................................11
2.1.2 Antenna Installation...............................................................................................................12
2.1.3 Module Installation on the Development Board ....................................................................12
2.1.4 Serial/USB Cable Installation................................................................................................13
2.1.5 Powering Development Board...............................................................................................14
2.1.6 USB Driver Installation..........................................................................................................14
2.2 Using Terminal Software for AT Commands ................................................................................. 15
2.3 Using ProBee Manager for Configuration ....................................................................................17
3 ZIGBEE NETWORK CONFIGURATION.................................................................18
3.1 Setting up ZE20S as a Coordinator.............................................................................................. 18
3.1.1 Node Type Selection for Coordinator....................................................................................19
3.1.2 Channel Mask Configuration for Coordinator........................................................................19
3.1.3 PAN ID Configuration for Coordinator...................................................................................20
3.1.4 Permit Joining........................................................................................................................20
3.2 Setting up ZE20S as a Router...................................................................................................... 21
3.2.1 Node Type Selection for Router............................................................................................21
3.2.2 Channel Mask Configuration for Router................................................................................22
3.2.3 PAN ID Configuration for Router...........................................................................................22
3.2.4 Permit Joining........................................................................................................................22
3.3 Setting up ZE20S as an End Device ............................................................................................23
3.4 Setting up ZE20S as a Sleepy End Device .................................................................................. 23
3.5 ZigBee Security ............................................................................................................................ 25
3.5.1 Security Level........................................................................................................................26
3.5.2 Link Key.................................................................................................................................26
3.5.3 Network Key..........................................................................................................................26
3.5.4 Update Key............................................................................................................................26
4 DATA TRANSMISSION...........................................................................................27
4.1 Command Mode ........................................................................................................................... 27
4.1.1 Unicast...................................................................................................................................27

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4.1.2 Multicast ................................................................................................................................27
4.1.3 Broadcast ..............................................................................................................................28
4.1.4 Sending Binary Data .............................................................................................................28
4.1.5 Display Incoming Message ...................................................................................................28
4.2 Data Mode .................................................................................................................................... 29
4.2.1 Unicast Data Mode................................................................................................................29
4.2.2 Multicast Data Mode..............................................................................................................31
4.2.3 Broadcast Data Mode............................................................................................................33
5 DIGITAL AND ANALOG I/O....................................................................................35
5.1 GPIO Configuration ...................................................................................................................... 35
5.2 I/O Sampling ................................................................................................................................. 36
5.2.1 Queried Sampling..................................................................................................................36
5.2.2 Periodic Sampling .................................................................................................................38
5.2.3 Change Detection Sampling..................................................................................................38
5.2.4 GPIO Remote Control...........................................................................................................39
6 WORKING WITH DEVELOPMENT KIT .................................................................40
6.1 Development Kit Contents............................................................................................................ 40
6.2 Development Board Features....................................................................................................... 40
6.3 Development Board Hardware Descriptions ................................................................................ 41
6.3.1 Power ....................................................................................................................................41
6.3.2 RS232 Port............................................................................................................................42
6.3.3 USB Port................................................................................................................................42
6.3.4 ZE20S GPIO Interface ..........................................................................................................42
6.3.5 LEDs (CR12-19)....................................................................................................................43
6.3.6 Button Switches (SW10-17)..................................................................................................43
6.3.7 Variable Resistors (VR1, VR2)..............................................................................................43
6.3.8 Temperature Sensor..............................................................................................................43
6.3.9 Light Sensor ..........................................................................................................................43
6.3.10 Terminal Block.......................................................................................................................44
6.4 Configuration Example #1: 1 Coordinator, 1 Router and 1 End-Device....................................... 44
6.4.1 Coordinator Configuration.....................................................................................................45
6.4.2 Router Configuration.............................................................................................................45
6.4.3 End-device Configuration......................................................................................................46
6.4.4 Monitoring the Sensors .........................................................................................................46
6.5 Configuration Example #2: 1 Coordinator and 2 End-Devices.....................................................46
6.5.1 Coordinator Configuration.....................................................................................................47
6.5.2 End-devices Configuration....................................................................................................47
6.5.3 Turning on/off the LEDs.........................................................................................................48

5ProBee-ZE20S Series User Guide Rev.0.1
7 AT COMMAND REFERENCE.................................................................................49
7.1 Command Line Format................................................................................................................. 49
7.2 Standard AT Commands............................................................................................................... 49
7.2.1 AT ..........................................................................................................................................49
7.2.2 ATB........................................................................................................................................49
7.2.3 ATD........................................................................................................................................49
7.2.4 ATE........................................................................................................................................50
7.2.5 ATM .......................................................................................................................................50
7.2.6 ATO........................................................................................................................................50
7.2.7 ATR........................................................................................................................................50
7.2.8 ATS........................................................................................................................................50
7.2.9 ATZ........................................................................................................................................50
7.2.10 AT&F......................................................................................................................................50
7.2.11 +++ ........................................................................................................................................51
7.3 Node Specific Information ............................................................................................................ 51
7.3.1 AT+LONGADDR or AT+LA....................................................................................................51
7.3.2 AT+SHORTADDR or AT+SA.................................................................................................51
7.3.3 AT+ADDRDISCOVERY or AT+AD........................................................................................51
7.3.4 AT+OPCH or AT+OC.............................................................................................................51
7.3.5 AT+OPPANID or AT+OI.........................................................................................................52
7.3.6 AT+OPEPID or AT+OE..........................................................................................................52
7.3.7 AT+VERSION or AT+VR.......................................................................................................52
7.3.8 AT+PRODUCTNAME or AT+PN...........................................................................................52
7.4 Network Specific Parameters ....................................................................................................... 52
7.4.1 AT+CHMASK or AT+CM .......................................................................................................52
7.4.2 AT+PANID or AT+PI ..............................................................................................................53
7.4.3 AT+EPID or AT+EI.................................................................................................................53
7.4.4 AT+GROUPID or AT+GI........................................................................................................53
7.4.5 AT+POWER or AT+PW.........................................................................................................53
7.4.6 AT+STACK or AT+ZS............................................................................................................53
7.4.7 AT+NODENAME or AT+NN ..................................................................................................54
7.5 Network Formation and Join......................................................................................................... 54
7.5.1 AT+ASCAN or AT+AS ...........................................................................................................54
7.5.2 AT+ESCAN or AT+ES ...........................................................................................................54
7.5.3 AT+DSCAN or AT+DS...........................................................................................................54
7.5.4 AT+NODETYPE or AT+NT....................................................................................................55
7.5.5 AT+PERMIT or AT+PJ...........................................................................................................55
7.5.6 AT+LEAVE or AT+LV.............................................................................................................55
7.6 End-device.................................................................................................................................... 55

6ProBee-ZE20S Series User Guide Rev.0.1
7.6.1 AT+SLEEP or AT+SM............................................................................................................55
7.6.2 AT+PARENTLA or AT+PL .....................................................................................................55
7.6.3 AT+PARENTSA or AT+PS.....................................................................................................56
7.6.4 AT+CHILDTABLE or AT+CT..................................................................................................56
7.7 Data Transmission and Reception................................................................................................ 56
7.7.1 AT+DESTLA or AT+DL..........................................................................................................56
7.7.2 AT+DESTGROUPID or AT+DG.............................................................................................56
7.7.3 AT+SINKINFO or AT+SI........................................................................................................56
7.7.4 AT+MAXPAYLOAD or AT+MP...............................................................................................57
7.7.5 AT+TRASNSMITMODE or AT+TM........................................................................................57
7.7.6 AT+UNICAST or AT+UC .......................................................................................................57
7.7.7 AT+MULTICAST or AT+MC...................................................................................................57
7.7.8 AT+BROADCAST or AT+BC.................................................................................................57
7.7.9 AT+REMOTE or AT+RC........................................................................................................57
7.8 UART ............................................................................................................................................ 58
7.8.1 AT+BAUDRATE or AT+UB....................................................................................................58
7.8.2 AT+DATABIT or AT+UD.........................................................................................................58
7.8.3 AT+PARITY or AT+UP...........................................................................................................58
7.8.4 AT+STOPBIT or AT+US........................................................................................................58
7.8.5 AT+FLOWCTRL or AT+UF....................................................................................................59
7.9 Security......................................................................................................................................... 59
7.9.1 AT+SECURITY or AT+SE......................................................................................................59
7.9.2 AT+LINKKEY or AT+LK.........................................................................................................59
7.9.3 AT+NWKKEY or AT+NK........................................................................................................59
7.9.4 AT+UPDATEKEY or AT+UK..................................................................................................59
7.10 GPIO............................................................................................................................................. 60
7.10.1 AT+GPIO or AT+IO................................................................................................................60
7.10.2 AT+DIO..................................................................................................................................60
7.10.3 AT+AI.....................................................................................................................................60
7.10.4 AT+ SOURCELA or AT+SL ...................................................................................................60
7.11 Firmware Upload and Help........................................................................................................... 61
7.11.1 AT+BOOTLOAD or AT+BL....................................................................................................61
7.11.2 AT+HELP or AT+HP..............................................................................................................61
8 AT COMMAND EXAMPLES...................................................................................62
8.1 Network configuration................................................................................................................... 62
8.1.1 Coordinator............................................................................................................................62
8.1.2 Router....................................................................................................................................62
8.1.3 End-device.............................................................................................................................62
8.1.4 Sleepy End-device ................................................................................................................62

7ProBee-ZE20S Series User Guide Rev.0.1
8.1.5 Specifying Network................................................................................................................62
8.2 Data Transmission........................................................................................................................ 63
8.2.1 Command Mode....................................................................................................................63
8.2.2 Data Mode.............................................................................................................................63
8.3 UART Settings .............................................................................................................................. 64
8.4 Security......................................................................................................................................... 65
8.5 GPIO............................................................................................................................................. 65
8.6 Firmware Upload .......................................................................................................................... 65
8.6.1 Local Node ............................................................................................................................65
8.6.2 Remote Node ........................................................................................................................66
8.6.3 Clone.....................................................................................................................................66
9 S-REGISTERS........................................................................................................67
9.1 Display Options............................................................................................................................. 67
9.1.1 S11.........................................................................................................................................67
9.1.2 S12........................................................................................................................................68
9.1.3 S13........................................................................................................................................68
9.1.4 S14........................................................................................................................................68
9.2 Network Settings........................................................................................................................... 68
9.2.1 S21........................................................................................................................................68
9.2.2 S22........................................................................................................................................69
9.2.3 S23........................................................................................................................................69
9.3 Data Transmissions ...................................................................................................................... 69
9.3.1 S31........................................................................................................................................69
9.3.2 S32........................................................................................................................................69
9.3.3 S33........................................................................................................................................70
9.3.4 S34........................................................................................................................................70
9.3.5 S35........................................................................................................................................70
9.3.6 S36........................................................................................................................................71
9.3.7 S37........................................................................................................................................71
9.3.8 S38........................................................................................................................................71
9.3.9 S39........................................................................................................................................71
9.4 GPIO............................................................................................................................................. 72
9.4.1 S41........................................................................................................................................72
9.4.2 S42........................................................................................................................................72
9.4.3 S43........................................................................................................................................72
9.4.4 S44........................................................................................................................................72
9.4.5 S45........................................................................................................................................73
9.5 End Device ................................................................................................................................... 73
9.5.1 S51........................................................................................................................................73

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9.5.2 S52........................................................................................................................................73
9.5.3 S53........................................................................................................................................73
9.5.4 S54........................................................................................................................................74
9.5.5 S55........................................................................................................................................74
9.5.6 S56........................................................................................................................................74
9.6 Sink............................................................................................................................................... 75
9.6.1 S61........................................................................................................................................75
9.6.2 S62........................................................................................................................................75
10 PIN ASSIGNMENTS............................................................................................76
11 MECHANICAL DRAWINGS.................................................................................78
12 WARRANTY.........................................................................................................83
12.1 GENERAL WARRANTY POLICY ................................................................................................. 83
12.2 LIMITATION OF LIABILITY........................................................................................................... 83
12.3 HARDWARE PRODUCT WARRANTY DETAILS......................................................................... 83
12.4 SOFTWARE PRODUCT WARRANTY DETAILS ......................................................................... 84
12.5 THIRD-PARTY SOFTWARE PRODUCT WARRANTY DETAILS ................................................ 84
13 REGULATORY INFORMATION...........................................................................85
13.1 FCC .............................................................................................................................................. 85
13.2 CE................................................................................................................................................. 85
13.3 TELEC .......................................................................................................................................... 86
13.4 KCC .............................................................................................................................................. 86
13.5 ZigBee Alliance ............................................................................................................................. 86
14 RF INFORMATION ..............................................................................................87

9ProBee-ZE20S Series User Guide Rev.0.1
1 Introduction
1.1 About This Document
This document provides an introduction on configuration and operation of the ProBee-ZE20S ZigBee
OEM module. This document assumes the user is using the ZE20S starter kit for evaluation hence the
pictures and configuration examples shown in this document are all based on the ZE20S starter kit.
This document does not provide full detail of the hardware specifications. Please refer to the ProBee-
ZE20S data sheet for further references on the hardware design.
1.2 Overview
The ProBee-ZE20S is an all-in-one ZigBee OEM module with integrated ZigBee core and radio/antenna
circuits together with high level software library. Using the ZE20S, OEM manufacturers can easily and
cost-effectively integrate ZigBee functionality into target products in timely manner.
The ZE20S OEM module is designed to meet specific requirements of low cost and low power wireless
applications such as home automation or smart energy by adopting the ZigBee technology. The ZE20S is
based on the Ember EM250 ZigBee core and fully certified under the latest ZigBee Pro standard for the
maximum compatibility.
Despite of its low cost and low power consumptions, the ZE20S provides high performance and robust
data transfer capability for wide range of applications. The ZE20S can transfer data at up to 250 kbps and
reach up to 1.6 km (0.99 miles) outdoor line-of-sight.
Key Features
•Integrated 2.4GHz, IEEE 802.15.4-compliant transceiver
•ZigBee Pro Certified
•ZigBee core: Ember EM357
•Transmit Power: +8dBm (max.)
•Receiver Sensitivity: -100dBm @1% BER
•TX current : 33mA (typ.) / 45mA (max. boost mode) @3.3V
•RX current: 28mA (typ.) / 31ma (max. boost mode) @3.3V
•Sleep Current: ≤1uA
•Working Distance: 400m outdoor, 40m indoor
•Various Antenna/Connector Options: Dipole 1/3/5dBi, RPSMA, U.FL, Chip
•Full UART Signals Support: UART_TXD/RXD, RTS/CTS, DTR/DSR
•6 Analog Inputs
•22 Digital Inputs/Outputs
•RoHS Compliant

10ProBee-ZE20S Series User Guide Rev.0.1
Applications
•Advanced Metering Infrastructure
•Home Area Networks (HAN)
•Neighborhood Area Networks (NAN)
•Home Automation
•Advanced lighting, entertainment, and climate control systems
•Service-based monitoring, security, and awareness systems
•Commercial Building Automation
•Climate & lighting control systems
•Industrial and Domestic Applications
Model despription
Model name Interface Connector
Antenna
Type1 Type2 Type3
ProBee-ZE20SDU DIP, pin U.FL 5dBi dipole 3dBi dipole 1dBi stub
ProBee-ZE20SDS DIP, pin RPSMA 5dBi dipole 3dBi dipole 1dBi stub
ProBee-ZE20SDC DIP, pin CHIP 0dBi Chip
ProBee-ZE20SSU SMD, pad U.FL 5dBi dipole 3dBi dipole 1dBi stub
ProBee-ZE20SSC SMD, pad CHIP 0dBi Chip

11ProBee-ZE20S Series User Guide Rev.0.1
2 Getting Started
Creating a ZigBee network using the ZE20S modules consists of the following steps:
•Install the ZE20S module on the development board
•Create a ZigBee network by configuring a ZE20S module as the coordinator
•Configure ZE20S modules as routers. This step is optional since the coordinator works as a
router too.
•Configure ZE20S modules as end devices
•Transmit data between ZE20S devices
This chapter describes how to install the ZE20S modules on to the development boards and how to use
terminal software programs to access the ZE20S modules using AT commands for configurations and
operations. The rest of the steps including ZigBee network creation, coordinator/router/end-device
configurations and data transmissions are described in the following chapters. The more detailed
information on the development kit and the configuration examples are also provided in the later chapter.
2.1 Hardware Installation
2.1.1 Development Board Layout
Figure 2-1 shows the layout of the development board. The development board provides the interface
between the ZE20S and the external serial port or USB port together with input/output terminals for
convenient tests.
TBD
Figure 2-1 Development Board Layout

12ProBee-ZE20S Series User Guide Rev.0.1
2.1.2 Antenna Installation
The ZE20S starter kit includes the several antennas for evaluation purposes. You can try different
antennas for testing purpose and select the appropriate antenna for the actual applications. Figure 2-2
shows how to install the RP-SMA dipole antenna to the ZE20S module.
TBD
Figure 2-2 RP-SMA Dipole Antenna Installation
2.1.3 Module Installation on the Development Board
Once the antenna is installed on the ZE20S module, the ZE20S module can be installed on the
development board.
TBD
Figure 2-3 ZE20S Installation on the Development Board

13ProBee-ZE20S Series User Guide Rev.0.1
2.1.4 Serial/USB Cable Installation
After the ZE20S is securely installed on the development board, please connect the included serial cable
between the development board and your computer so AT commands can be sent from the computer to
the ZE20S module. The serial port of the development board is DB9 male as a DTE terminal, and the
serial cable included is a cross-over cable for DTE-DTE connection. To use the serial port, the HOST
(SW2) switch should be set to UART.
TBD
Figure 2-4 Serial Cable Installation
In case the serial port is not available for the computer, you can use the USB port of the development
board instead. In this case, the internal USB-RS232 converter of the development board will convert the
USB signal to the RS232 signal and vice versa. To use the USB port, the HOST (SW2) switch should be
set to USB and the software driver for the USB in the CD should be installed on the computer. For the
USB driver installation, please refer to the section 2.1.6.
TBD
Figure 2-5 USB Cable Installation

14ProBee-ZE20S Series User Guide Rev.0.1
2.1.5 Powering Development Board
Once all the installations are completed, please plug in the power connector using the included DC power
adapter. The RS_PWR, USB_PWR and BATT_EN jumpers should be all OPEN to use the DC power
adapter. Alternatively, the development board can be powered using batteries, or from the USB port or
through the RS232 port pin 9. In these cases, the power source jumpers should be set accordingly. For
details about the power source jumper settings, please refer to the section 6.3.1 Power.
TBD
Figure 2-6 Plugging DC Power Adapter
2.1.6 USB Driver Installation
In case the USB interface is used for the communication between the development board and the
computer, the corresponding software driver needs to be installed on the computer. Windows XP and later
versions already include the USB driver. When Windows asks for the location of the USB driver, you can
select the option to “install the software automatically” as shown in Figure 2-7. You can also choose to
install the driver from the CD included if the driver is not installed correctly for some reason.
Figure 2-7 USB Driver Installation

15ProBee-ZE20S Series User Guide Rev.0.1
2.2 Using Terminal Software for AT Commands
Once the hardware installation is complete, the ZE20S unit is ready to communicate with the computer
using the AT commands using a terminal emulation software. You can use any kind of terminal emulation
software. This document assumes HyperTerminal is used. If you are using Windows Vista or 7,
HyperTerminal is no longer included in the Windows so you need to download HyperTerminal from the
Internet. For more details on HyperTerminal, please refer to Microsoft web page.
Once the HyperTerminal is installed, launch HyperTerminal and select the serial port that is connected to
the ZE20S development board and enter the serial settings to use. The default serial settings of the
ZE20S are 9600 bps, 8 data bit, none parity, 1 stop bit, hardware flow control.
Figure 2-8 HyperTerminal Serial Settings

16ProBee-ZE20S Series User Guide Rev.0.1
To display the AT commands that are being typed, you need to enable the local echo option on the
HyperTerminal. To enable this option, Go to File->Properties->Settings->ASCII setup and select the
“Echo typed characters locally” option. To verify the connection, type AT and press the Enter key. If the
AT command is accepted by the ZE20S, OK string will be displayed on the screen.
Figure 2-9 Testing AT Command on HyperTerminal

17ProBee-ZE20S Series User Guide Rev.0.1
2.3 Using ProBee Manager for Configuration
Figure 2-10 ProBee Manager
It is possible to set or get the configurations of the ZE20S using ProBee Manager. This PC utility helps
that a user can configure several setting values easily without a terminal program and upload the
firmware file to local and/or remote node.

18ProBee-ZE20S Series User Guide Rev.0.1
3 ZigBee Network Configuration
A ZigBee Network consists of a coordinator, routers and end devices. A minimal ZigBee network consists
of one coordinator and multiple end devices which directly connect to the coordinator. For larger ZigBee
networks, routers are required to provide redundant routings to form mesh networks.
•ZigBee Coordinator: The coordinator forms the root of the network tree and might bridge to
other networks. There is exactly one ZigBee coordinator in each network since the coordinator
starts the ZigBee network itself. It also stores information about the network, including acting as
the Trust Center & repository for security keys.
•ZigBee Router: The routers are able to route messages between other devices. Since the
coordinator provides the routing functionality too, the routers are optional to form a ZigBee
network.
•ZigBee End Device: The end device contains just enough functionality to talk to the parent node
which is either the coordinator or a router. It cannot relay data from other devices.
•ZigBee Sleepy End Device: The sleepy end device is the same with normal end device except it
can stay in the sleep mode much longer. This relationship allows the end device to sleep
significant amount of the time and achieve the long battery life.
The ZE20S can be configured to work either as a coordinator, a router or an end device. Once the
operation mode of the ZE20S is selected, corresponding parameters need to be set up appropriately. This
chapter explains how to configure the ZE20S operation mode and other parameters related to the ZigBee
network itself.
Table 3-1 ZigBee Node Types
Node Type Recommendation when to use ZE20S
Coordinator It should be selected when it is first time to establish the network.
Router It is recommended when there is a network already and it needs to be expanded. A
router is suitable for fast and stable data transmissions and receptions.
End Device It is recommended when it doesn’t need to expand the network anymore and there
are enough nodes as parents. An end-device consumes less power than a router.
Sleepy End Device It is recommended when the data transmissions occur rarely and in very small
quantities. A sleepy end device can lose data if sleep duration is too long, but it is
possible to consume extremely low power as low as 2uA.
3.1 Setting up ZE20S as a Coordinator
A coordinator relays messages and can act as a parent to other nodes. Every personal area network
(PAN) must be started by a node acting as the coordinator. This device is normally always powered on.
To set up the ZE20S to work as the coordinator, please follow the steps as below

19ProBee-ZE20S Series User Guide Rev.0.1
•Configure the ZE20S node type as the coordinator
•Optionally, select the channel mask. Otherwise, the ZE20S will use the default channel mask.
•Optionally, set up the PAN ID and/or the extended PAN ID. Otherwise, the ZE20S will generate
the PAN ID and/or the extended PAN ID automatically.
•Permit joining when other router or end device tries to join the ZigBee network.
3.1.1 Node Type Selection for Coordinator
The ZE20S module can be configured as a ZigBee coordinator by the AT command as below:
AT+NODETYPE=n or AT+NT=n
Where n is 0 = none, 1 = coordinator, 2 = router, 3 = end-device, 4 = sleepy end-device
After the operation mode is selected, ATZ command should be performed to reset the unit to have the
change applied.
Example)
AT+NODETYPE=1<CR> # Set node type as the coordinator
OK<CR> # Response
ATZ<CR> # Apply the change
OK<CR> # Response
3.1.2 Channel Mask Configuration for Coordinator
When the ZigBee coordinator starts, it scans predefined frequency channels to find the best frequency
channel to use without causing interference with other wireless devices. The user is able to specify the
channels to use with the AT command as below:
AT+CHMASK=n
Where n = channel mask to use. Default = 0x03FFF000
This value has a 32-bit hexadecimal unsigned integer. Each bit represents whether a channel will be used
or not. For example, to use a channel between 12 and 15, the 12, 13, 14 and 15 bits of the channel mask
should be 1 and all other bits should be 0. The default setting is 0x3FFF000 which means that all the
channels from 12 to 25 can be used. The ZE20S supports only the channels between 12 and 25, so 0~11
bits and 26~31 bits should be 0. Table 3-2 shows the bit mask for each channel.

20ProBee-ZE20S Series User Guide Rev.0.1
Table 3-2 Channel Bitmask
Channel 12 13 14 15 16 17 18
Bit mask 00001000 00002000 00004000 00008000 00010000 00020000 00040000
Channel 19 20 21 22 23 24 25
Bit mask 00080000 00100000 00200000 00400000 00800000 01000000 02000000
3.1.3 PAN ID Configuration for Coordinator
Every ZigBee network should be assigned a PAN ID to identify the network. If the PAN ID is 0000, the
ZE20S will generate a random 16-bit PAN ID to start the ZigBee network. Otherwise, the user can enter
the PAN ID using the AT command as below:
AT+PANID=xxxx
Where xxxx is PAN ID to use. For example, 12AB. Default setting is 0000
When choosing a PAN ID, the user needs to make sure that there is no ZigBee network using the same
PAN ID. If the PAN ID is already used by another ZigBee network, the PAN ID is unavailable and the user
should choose a new PAN ID. In order to avoid this, PAN ID auto-generation is strongly recommended.
The user can also assign the 64-bit extended PAN ID to the ZE20S using the AT command below. If the
extended PAN ID is 0000000000000000, the ZE20S uses its IEEE address as the extended PAN ID. The
extended PAN ID cannot be shared with other ZigBee networks either.
AT+EPID=xxx
… xxx
Where xxx
… xxx is EPID to use. For example, 0123456789ABCDEF. Default setting is 000 … 000.
3.1.4 Permit Joining
When a router or an end device tries to join the ZigBee network, there should be at least one coordinator
or router which is permitting joining. If there is no router in the ZigBee network yet, the coordinator should
permit joining. The ZE20S provides three ways to permit joining are as follows:
•Permanently permitting by configuration
•Transiently permitting by AT command
•Transiently permitting by digital input signal
If joining is permanently permitted, any device can join anytime. Since this will allow even an unidentified
device to join the network anytime, this mode should be selected with extra caution. The AT command to
permit joining permanently is as follows:
AT+PERMIT=255 or AT+PJ=255