ControlByWeb WebRelay Wireless XW-210I User manual

Introduction XW-210 WiFi™ Users Manual
Section 1: Introduction
The XW-210™ is an easy to use Wi-Fi enabled relay, temperature monitor and status alertin device.
The XW-210 has a built-in relay for controllin li hts, motors and other relatively hi h current loads, a
di ital input which can be used to monitor and report the status of switch closure sensors and a “1-wire”
port for connectin up to four di ital temperature or other Xytronix 1-wire sensors. The XW-210 is ideal
for applications where devices must be controlled or where temperature or events must be monitored
and Ethernet wirin is not accessible or practical to install. The module is powered by an external wall
transformer (9-28 VDC), solar panel, or other DC power source.
The XW-210 works well as a standalone device that can be controlled usin a web browser. It can be
confi ured usin simple menus and drop-down lists. It includes features such as lo in , input state
monitorin , and the ability to control other relays on other devices.
The XW-210 can be a self-contained wireless access point that requires no additional servers or
ControlByWeb devices. In this mode the XW-210 provides live, real-time temperatures or input status
directly to a sin le user throu h web browsers or the CBW Mobile app.
After bein commissioned the XW-210 can reco nize and attach to your Wi-
Fi access point. The XW-210 offers the ability to control it's relay, monitor
temperature or input status and send out email alerts (which can be converted
to text messa e alerts) whenever an alarm condition occurs.
Plu -in terminal strips provide connections for the DC power, relay contacts,
optically isolated input and up to 4-temperature or other Xytronix 1-wire
sensors. No other cables, interfaces, or PC utility pro rams are needed.
Two push-button switches aid in provisionin the module. Press the “Access
Point” button anytime to active the access point mode. With a WiFi enabled
PC or smart phone you then connect to and access the internal web server at
the default IP address, port and password. Usin the web server, you
confi ure the access port, name, and other setup parameters. Alternatively,
add the XW-210 to an existin network by pressin the “WPS” (Wi-Fi
Protected Setup) button on both your access point (i.e., router) and the XW-
210.
The XW-210 supports a number of Ethernet protocols with it's built-in server,
includin HTTP, Modbus/TCP, NTP, and XML.
The XW-210 has a built-in BASIC interpreter. A control script can be written
for special needs or custom applications not provided by the normal control
functions.
Page 2 Xytronix Research & Design, Inc.

XW-210 WiFi™ Users Manual
1.1 Features
➢Wireless Wi-Fi 802.11 b/ /n.
➢Transmission ran e up to 250ft.
➢Built-in web server for confi uration and remote monitorin .
➢Built-in hi h current relay.
➢Optically isolated di ital input. Use the input to control relays or tri er email messa es.
➢Pulse counter.
➢“1-wire” port for connectin up to 4 di ital temperature or other Xytronix 1-wire sensors.
➢Temperature sensors are accurate to +/-0.5°C from -10°C to +85°C.
➢Temperature probes are interchan eable and need no calibration.
➢Powered from a 9 to 24V DC power adapter. The power supply volta e is monitored internally and can be
lo ed.
➢Sensor/Input status can control a relay on other ControlByWeb devices.
➢Confi urable lo in of the input, counter, temperature, humidity, relay state and Vin.
➢Real-time clock with manual or NTP time sync.
➢Send email alerts (up to 8 addresses) based on any sensor or input conditions.
➢Auxiliary protocols includin XML, Modbus/TCP and Remote Services.
➢Custom scrips usin the built-in BASIC interpreter provide additional flexibility.
➢Simple and easy to use.
➢5-year warranty.
Xytronix Research & Design, Inc. Page 3

Introduction XW-210 WiFi™ Users Manual
1.2 Part Numbers and Accessories
Device Description Part Number
XW-210 Wi-Fi WebRelay with built-in web server XW-210I
emperature Sensor Di ital temperature sensor with short wire leads
(connects directly to the terminal strip)
X-DTS-U
emperature Sensor Di ital temperature sensor with 3 foot wire leads
(housed in water resistant stainless steel probe)
X-DTS-S3C
emperature Sensor Di ital temperature sensor with 32 foot wire leads
(housed in water resistant stainless steel probe)
X-DTS-S32C
emperature/
Humidity Sensor
(Wall Mount)
Di ital temperature and humidity sensor housed in vented plastic
enclosure
X-DTHS-WM
Magnetic
emperature Sensor
Mount
Ma netic mount for the temperature sensor probe XW-SMK-1
Power Supply Wall Transformer, 100-240VAC in, 12V, 1.5A out PS12VW1.5-B
Water Leak Sensor Water leak sensor GRI-2605
Spare Connector 8-position, screw terminal connector X-TERM8A
Spare Connector 3-position, screw terminal connector X-TERM3B
Page 4 Xytronix Research & Design, Inc.
Magnetic temperature sensor mount

XW-210 WiFi™ Users Manual
1.3 Wireless Communication Notes
Due to the nature of wireless communications, transmission and reception of data can not be
uaranteed. Data may be delayed, have errors, or be lost. Althou h delays or losses of data are rare with
a well constructed network, data can be lost due to interference, noise, reflections, or other
environmental conditions. The XW-210 should not be used in situations where failure to transmit or
receive data could result in dama e to property, equipment, direct, indirect, consequential, or incidental
dama e, includin dama e for loss of business profit, business interruption, loss of data, life, and the
like.
1.4 Security Notes
The XW-210 is a dedicated device and does not employ a eneral purpose computer operatin system
(i.e. Windows, Linux etc.) It does not have features such as telnet, FTP, SSH, nor uncontrolled open
ports. This means it is extremely difficult if not impossible for someone to ‘break in’ to the XW-210 and
access other devices on your local network. The simplicity of the XW-210 makes it an inherently secure
device. Nevertheless, as with any device installed on a network, appropriate security precautions should
be observed.
It is recommended that passwords be enabled for the Control Page and Setup Pages. Passwords should
be at least 8 characters in len th and use a combination of upper and lower case letters and numbers.
For additional security, a firewall may be used to limit access to selected IP addresses.
Xytronix Research & Design, Inc. Page 5

Introduction XW-210 WiFi™ Users Manual
1.5 Connectors & Indicators
Relay
The XW-210 has an internal hi h-current relay. Screw terminals are provided for the Common, Normally
Open, and Normally Closed contacts of the relay. The screw terminals are internally connected directly to
the relay with no internal fuse or other over-current protection. The relay contacts are isolated from all
other circuits.
Digital Input
The XW-210 has an optically-isolated di ital input. The optically-isolated input provides electrical isolation
between the di ital input and the low volta e control circuits of the XW-210. The input can be used as a
pulse counter and has a built-in debounce of 20ms.
1-Wire Sensor Bus
The XW-210 works with “1-wire” di ital temperature and other Xytronix 1-wire sensors. The sensors are
available in several confi urations, are interchan eable and require no calibration. The sensors require
three connections for communications and power (+5V, Gnd, Data). Control relays or tri er email
messa es based upon temperature and other sensor values.
Power Supply
The XW-210 employs modern switch-mode power supply which works from 9 to 28VDC. With this type
of power supply the current draw decreases as the volta e increases. The power supply volta e (+Vin) is
monitored internally and can be lo ed.
LED Indicators
Power: Illuminated whenever the module is powered
Relay: Illuminated whenever the relay is ener ized
Input: Illuminated when a sufficient volta e is applied to the opto-coupler input
Link: See table below:
WiFi State LINK LED
Not connected Off
WPS in progress Slow flashin ☼ ☼ (1/4Hz)
Access Point mode Med flashin ☼ ☼ ☼ ☼ ☼ ☼ ☼ ☼ (2Hz)
Connected to network waiting for HCP Fast flashin ☼☼☼☼☼☼☼☼☼☼☼☼☼☼☼
Connected to network with static or HCP Solid on ☼
Page 6 Xytronix Research & Design, Inc.

XW-210 WiFi™ Users Manual
The XW-210 has an 8-position removable screw terminal connector for power, input and sensor connections. A
separate 3-pin connector provides connections to the internal relay.
8-Pin Connector
erminal Description
Vout +5V output to power 1-wire sensor(s), 50mA max
Data Serial data line for 1-wire sensor(s)
Gnd Gnd output for 1-wire sensor(s)
Din+ Di ital Input + The positive side of the optically-isolated input.
Din- Di ital Input - The ne ative side of the optically-isolated input.
Gnd - Power Input (GND)
Gnd - Power input (GND)
+Vin +9 to 28VDC power input
3-Pin Connector
erminal Description
CRelay COMMON
NO Relay NORMALLY OPEN
NC Relay NORMALLY CLOSED
Xytronix Research & Design, Inc. Page 7

Introduction XW-210 WiFi™ Users Manual
1.6 Accessing the XW-210 using a Web Browser
The XW-210 has a built-in web server that provides simple web pa es that can be accessed directly
usin a standard web browser. This allows users to access the unit with NO SPECIAL SOFTWARE
installed on their computer. This is ideal for applications that require a quick, simple solution that does
not need to be accessible to more than a few people. This confi uration is simple to setup, simple to use,
and can be accessed from just about any computer or smart phone.
Page 8 Xytronix Research & Design, Inc.

XW-210 WiFi™ Users Manual
Section 2: Installation and Connections
Installation consists of mountin the XW-210 and connectin it to a power source. See Section 3:
Provisioning for instructions on commissionin the XW-210 such that it can reco nize and connect to
your Wi-Fi access point.
2.1 Installation Guidelines
•This unit must be installed by qualified personnel.
•This unit must not be installed in unprotected outdoor locations.
•This unit must not be used for medical, life savin purposes, or for any purpose where its failure
could cause serious injury or the loss of life.
•This unit must not be used in any way where its function or failure could cause si nificant loss or
property dama e.
•Do not use to directly control motors or other actuators not equipped with limit switches or other
safe uards to protect from equipment or wirin failures.
•The XW-210 should be located in a clean, dry location where it is protected from the elements.
Ventilation is recommended for installations where ambient air temperatures are expected to be
hi h. See Appendix E: Mechanical Information for additional mechanical details.
•The 1-wire temperature probes are water resistant and can be used in outdoor applications
however, they are not suitable for immersion or use in pressure vessels. For immersion and
other demandin applications use a thermowell to protect the sensor.
2.1.1 Wall Mounting
Mount the XW-210 to a wall by usin two #8 screws. Attach the screws to the wall vertically spaced
exactly 2.5 inches apart. The head of the screw should be about 1/10 inch away from the wall.
2.1.2 DIN-Rail Mounting
The XW-210 can be mounted to a standard (35mm by 7.55mm) DIN-
Rail. Attach the XW-210 to the DIN-Rail by hookin the top hook on
the back of the enclosure to the DIN-Rail and then snap the bottom
hook into place. To remove the XW-210 from the DIN-Rail, use a flat-
head screwdriver. Insert the screw driver into the notch in the release
tab and pry a ainst the enclosure to release the bottom hook.
Xytronix Research & Design, Inc. Page 9

Installation and Connections XW-210 WiFi™ Users Manual
2.2 Making Connections
CAU ION: Make sure the power is shut off before making connections
CAU ION: his unit should be installed by a qualified technician.
CAU ION: Miswiring or misconfiguration could cause permanent damage to the XW-210, the
equipment to which it is connected, or both.
A removable terminal connector is provided for makin the power connections. To help protect the XW-
210 from mechanical stress remove the terminal connector before makin the connections.
1. Make sure power is turned off.
2. Remove the terminal connector from the XW-210 and make wirin connections to the terminals.
This technique avoids stressin the internal components while torquin the screws.
3. Reconnect the terminal connector.
4. Apply power.
It is recommended that any load (device to be controlled) not be connected until after the XW-210 has
been confi ured and tested. By doin this, wirin and confi uration mistakes will not cause the load to
turn on unexpectedly. Make certain the wires are properly inserted into to the terminals and that the
screws are ti ht.
Relay Connector Specifications:
Type: 3-position, removable, 7.62 mm (.30”) pitch
Connection wire: Use wire rated for 75ºC (min) for connections to the relay terminal block
Strippin Len th: 7mm
Connection capacity: 2.5mm2 stranded, 2.5mm2 solid
Conductor minimum: 30AWG (UL/CUL)
Conductor maximum: 12 AWG (UL/CUL)
Conductor Type: Copper
Ti htenin torque: 0.5 Nm (min), 0.6 Nm (max)
2.2.1 Power Supply Connections
The XW-210 requires power for its internal lo ic circuits. Connect a 9-28 VDC power supply to the +Vin
and GND terminals. A re ulated power supply is recommended, such as a wall-mount AC-DC adapter.
Verify that the adapter is rated for the operatin current of the XW-210 (See Appendix A: Specifications
for the current requirements.) Multiple XW-210 units may be connected to a sin le power supply by
connectin the power supply input terminals in parallel. The power supply must have a hi h enou h
current ratin to power all units connected. If the XW-210 is powered with a solar panel, the system must
include a solar char e controller and a battery.
Page 1 Xytronix Research & Design, Inc.

XW-210 WiFi™ Users Manual
2.2.2 Antenna Connection
The XW-210 comes with an approved 2.4GHz omnidirectional antenna for use with WLAN devices usin
WiFi (802.11b/ /n). The omnidirectional pattern is suitable for point-to-multipoint broadcastin in all
directions. Connect the antenna to the Reverse SMA connector on the faceplate. Do not operate the XW-
210 without the antenna connected.
The omnidirectional antenna radiates RF si nals in all directions in one plane with a pattern shaped
somewhat like a dou hnut or torus. The radiated power decreases above or below the plane, droppin to
zero on the antenna's axis. Orient the antenna vertically so the antenna will radiate in all horizontal
directions and so little radio ener y is aimed into the sky or down toward the earth and lost.
This device has been approved to operate with an antenna (provided) with the maximum permissible
ain specified in the specification (Appendix A: Specifications). Antenna types not included in this
specification, havin a ain reater than the maximum ain indicated for that type, are strictly prohibited
for use with this device.
The antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm
from all persons and must not be co-located or operatin in conjunction with any other antenna or
transmitter except in accordance with FCC multi-transmitter product uidelines.
Xytronix Research & Design, Inc. Page 11

Installation and Connections XW-210 WiFi™ Users Manual
2.3 Relay Connections (Control a device over an IP network)
The illustration below shows a simple example of usin the relay in the XW-210 to control a device over
an IP network. The device to be controlled is wired in series with the relay contacts.
Note: The circuit must include a fuse or circuit breaker to provide over-current protection.
Page 12 Xytronix Research & Design, Inc.

XW-210 WiFi™ Users Manual
2.4 1-Wire Sensor Connections
The XW-210 has a “1-wire” port which supports up to four di ital temperature or other Xytronix 1-wire
sensors. The sensors share the same three connections for communications and power (+5V, Ground,
Data). Every sensor on the bus is assi ned a unique serial number when it is manufactured. That
number is used to address the sensor durin communication.
The di ital temperature sensors are interchan eable and require no calibration. The sensors accuracy is
+/-0.5°C (-10°C to +85°C). The temperature sensor is available in several confi urations. The
encapsulated version has a stainless steel probe and can be used in outdoor applications however, the
probe is not suitable for immersion or use in pressure vessels. For immersion and other demandin
applications use a thermowell to protect the sensor. The basic sensor (non-encapsulated) must used in
protected locations. The temperature sensors have three wires as shown below.
Sensor Wire Color Connection
Red +5V
Black Gnd
Blue, White, Yellow Data
Xytronix Research & Design, Inc. Page 13

Installation and Connections XW-210 WiFi™ Users Manual
Multiple sensors can be connected in two ways: directly connected (star topolo y) or “daisy chained”
(linear topolo y). Many factors can determine the maximum len th of the cable, includin the sensor
network topolo y, the type of cable used, the number of sensors and ambient electroma netic noise.
Combined cable len ths to all sensors of 600 ft usin Cat 5e cable have been successful. However, due
to the uniqueness of installation environments, results may vary. Please test in the desired environment
before makin a permanent installation.
The followin are eneral recommendations that will maximize sensor runs and minimize problems.
Cat 5 and Cat 5e network cable has proven to be an effective and low-cost solution for lon runs. Other
cable types can be used, but cable capacitance enerally limits the len th. The illustration shows the
recommended connection usin Cat 5 network cable. Connect all unused conductors to round.
A linear (daisy chain) topolo y will minimize si nal reflections, providin a more reliable connection and
will allow lon er cable len th than a star topolo y.
The 1-wire bus is "sin le-ended" and has no intrinsic noise protection. It is susceptible to interference if
the cable is routed near power lines, fluorescent fixtures, motors or other noise sources. Keep the cable
wirin short and avoid routin it near other electrical equipment.
Page 14 Xytronix Research & Design, Inc.
Recommended connections using Cat 5 cable

XW-210 WiFi™ Users Manual
2.5 Digital Input Connections
The XW-210 has an optically-isolated di ital input which can be used to control the relay and/or a remote
relay (over the network), or simply to monitor the state of a device. To use this input, connect a DC
control volta e directly to the input, and customize the input function usin the XW-210 confi uration
pa es.
2.5.1 DC Input
The di ital input is connected internally throu h a current-limitin resistor directly to a photo-coupler
circuit. No external resistor is necessary as lon as the input si nal is within the proper ran e (See
Appendix A: Specifications). A DC volta e can be reduced with an external resistor of the appropriate
value and power ratin to reduce the input current.
The di ital input has an internal 3K ohm resistor. The forward volta e drop of the photo-coupler is
approximately 1.2V and works well with an input current of 9mA. Use the followin formula to determine
the resistor value needed for other volta e ran es:
R =((Vin-1.2)/0.009)-3000
Where:
•R = External resistor value required
•Vin = Desired input volta e
•1.2V = forward volta e drop of the LED in the photo coupler
•.009A = workable LED current
•3000 ohm = Internal resistor
For example:
To connect a 48VDC si nal volta e to the XW-210:
R = ((48-1.2)/0.009)-3000 = 2200 ohms
Check the power dissipated by the resistor:
P = I x I x R, The resistor must be at least .009 x .009 x 2200 = 0.18 Watts, so use a 1/2
Watt resistor.
Xytronix Research & Design, Inc. Page 15

Installation and Connections XW-210 WiFi™ Users Manual
2.5.2 Switch Closure Connections
The XW-210 can sense the state of a switch closure sensor. Sensors with switch closure outputs include
push buttons, ma netic door alarm switches, micro-switches, or any device which has a relay, switch
closure or open collector output. The XW-210 can be confi ured for the alarm to be active when the
switch is either open or closed.
The illustration below shows an example of usin the XW-210 to monitor the status of a ate or door
over an IP network. The status of the device is detected with a switch. These types of sensors are called
“dry contacts” in that the sensor output is a bare switch with no power source. In this example the volta e
source for the switch is provided via the power supply for the XW-210.
Page 16 Xytronix Research & Design, Inc.

XW-210 WiFi™ Users Manual
2.5.3 Water Leak Sensor Connections
A GRI-2605 water leak detector can be directly connected to the XW-210. The sensor detects the
presence of water or other conductive liquids. The sensor has 4-wires which are connected as shown
below. The GRI-2605 has an internal relay whose contacts ( reen & white wires) are closed when the
sensor is dry. When the sensor is dry the di ital input will be On. When water is detected the relay
contacts open and the di ital input will be Off. With the connections shown the sensor is a closed loop
“supervised” alarm circuit such that if a wire is disconnected or the sensor fails, an alarm will be
enerated. The XW-210 can be pro rammed to activate it's relay, activate a relay at a remote location or
send an e-mail warnin when a water leak is detected. The GRI-2605 is not recommended for
submer ed applications or prolon ed exposure to water. After installation test the sensor with a damp
spon e or wet towel.
Xytronix Research & Design, Inc. Page 17

Installation and Connections XW-210 WiFi™ Users Manual
2.5.4 AC Input Connections
If an AC si nal volta e needs to be detected, use a si nal conditioner to convert the AC si nal to a DC
volta e within the input ran e. An AC si nal conditioner can be made usin a diode (or brid e rectifier)
and a capacitor. Prepacka ed si nal converters are available as accessories at industrial automation
distributors. A simple volta e converter module (RedLion VCM10000 or VCM20000) is shown below.
These are available in two input volta e ran es that cover the spectrum from 4-270VAC/DC. These
devices have a MOSFET output (solid state DC contact closure) which is compatible with the XW-210
input. The converter module accepts AC (50/60 Hz) or DC volta es with an input pulse rate up to 30 Hz.
The converter provides isolation between the input and output usin an opto-isolator. You must provide a
volta e source for the converter circuit as shown in the example below:
Page 18 Xytronix Research & Design, Inc.

XW-210 WiFi™ Users Manual
Section 3: Provisioning
After makin the sensor connections and providin power, you must provision the XW-210 for use on
your wireless network. The oal is to confi ure the XW-210 such that it can reco nize and attach to your
Wi-Fi access point. There are two methods for doin this:
3.1 Access Point
By default, the XW-210 comes up as a wireless access point when powered for the first time. Pressin
the "access point" push button any time also activates the access point mode. It isn't really an access
point because it will not provide internet connectivity to your computer or smart phone, but it will appear
as an access point meanin that your computer or smart phone will detect it as an access point and
display it as such. When actin as an access point, the XW-210 broadcasts an SSID of “XW210-
XXXXXX” where XXXXXX are the last six di its of its MAC address.
With your wireless device (laptop computer or smart phone) scan for, and attach to the XW210 wireless
network. Next, access the web server in the XW-210 usin a web browser. To access the setup pa es,
enter the followin URL in the address bar of your web browser:
http://192.168.1.2/setup.html
After the pa e is requested, a password prompt will appear. Enter the username and password. The
username is admin and the password is webrelay (password is case sensitive). The next chapter
explains each of the setup tabs and screens. Use the WiFi Networks tab for makin the proper settin s
to allow the XW-210 to connect to your access point.
Notes About Access Point Mode:
•As an Access Point the XW-210 functions independently of other wireless networks. It
broadcasts beacons and services WiFi packet requests. In this mode, your computer or smart-
phone is connected directly with the XW-210 on a private network and is NOT usin another
WiFi network. Typically you would use this for confi uration and not for normal operation.
•The XW-210 has no hardware “restore defaults” button, to prevent the installer from bein locked
out, the default username (admin) and password (webrelay) always work in the access point
mode, even if the password is chan ed. If the password has chan ed via the Password tab, both
the new password and the webrelay password will work. Additionally, the IP address and HTTP
port will temporarily revert to the default values shown above when in the access point mode.
•Only one client (computer or smart-phone) can be connected to XW-210 at a time.
•SSID and password cannot be customized (once a ain this mode is intended for confi uration
only).
•Access point is unsecured and open.
Xytronix Research & Design, Inc. Page 19

Provisionin XW-210 WiFi™ Users Manual
3.2 WPS (Wi-Fi Protected Setup)
The WPS Push button method, provides a simple method for attachin the XW-210 to a wireless
network without needin to use any setup pa es. Althou h usin this method to connect the XW-210 to
the network is simple, you will not be able to access the XW-210 web server unless you know the IP
address that was assi ned by the DHCP sever (router) or unless mDNS services are available on your
device. For this reason, it is recommended that you use this method of confi uration only when the XW-
210 units have been pre-confi ured to operate in a non-web-server mode or when you have full access
to the DHCP server so you can obtain the IP address that was assi ned.
To be in, press the WPS button on your wireless router or access-point. You will enerally have about
two minutes to connect wireless devices to the network with WPS. Now press the “WPS” push button on
your XW-210. After a few seconds, the XW-210 should re ister itself with the router or access-point. If
WPS fails, the XW-210 will automatically enter the access point mode.
The XW-210 will use DHCP to obtain an IP address after a successful WPS association. Additionally, the
connection information is also broadcast usin mDNS. If you need to access the XW-210 usin its
internal web server you will need to obtain the IP address that was assi ned to the XW-210 throu h your
DHCP server or router. Alternatively, if usin an mDNS capable device, it may be accessed by enterin
the followin into the address bar of your web browser:
http://xw-210.local/setup.html
Page 2 Xytronix Research & Design, Inc.