HW Group STE 2 User manual

Manual for STE2 LITE

HW group
2
User Manual for STE2 LITE device
Safety warning
The device has been tested and is in good working condition, meeting the standards required in
the Czech Republic. To keep it working properly, it's important to follow the safety and
maintenance guidelines listed below. If the device is used improperly, it may not work safely.
Also, make sure that the power socket or the point where the device can be unplugged from the
power supply is easy to reach.
Do not use the device if:
•It looks damaged
•It's not working properly
•There are loose parts inside
•It was exposed to moisture or water for a long time
•Someone who is not authorized tried to repair it
•The power adapter or its cable looks damaged
•You're using the device in a way that's not recommended, which may compromise its
safety features
•The switch, fuse, and other power surge protection features must be part of the device's
overall construction.
The manufacturer is only responsible for the device if it's being powered by an approved or
supplied power source.
If you experience any difficulties with installing or starting up the device, please don't hesitate to
reach out to our technical support team for assistance.
HW group s.r.o.
http://www.hw-group.com
email: [e-mail]
Rumunská 26/122
Prague, 120 00
Phone: [phone]
Before contacting technical support, prepare a precise model of your device (on the
manufacturing label and the firmware version (see below), if you know it.

HW group
3
User Manual for STE2 LITE device
STE2 LITE
The STE2 LITE is a thermometer that comes with Ethernet and WiFi interfaces,
supports HTTPS, and can be connected to the Portal service.
The STE2 LITE is a device that can measure temperature, humidity, or other values from
external sensors. It is equipped with HTTPS and SNMP features, and can be connected to a LAN
or WiFi network. If the sensor value exceeds defined Safe-range, the device can send alarm
messages via email. With using external SMS GW device, the SMS or Ring alerts are available. It
can also be connected to the Portal (SensDesk Technology). A power adapter and temperature
sensor are included in the package.

HW group
4
User Manual for STE2 LITE device
Product usage scheme

HW group
5
User Manual for STE2 LITE device
Basic features
•The device supports LAN and WiFi connections through 802.11 b/g/n (2.4 GHz).
•It supports Ethernet and WiFi operations for easy configuration.
•Device and can be powered by 5V (external power adaptor).
•The device comes with a built-in WEB server that supports HTTPS.
Standard Internet browser is enough for configuration.
•Open API: It can be connected to higher-level monitoring systems via XML or SNMP.
•The device can simultaneously handle HTTP and HTTPS traffic, with the option of disabling
one or both protocols for security reasons.
•If the sensor value (temperature) goes out of Safe-Range, the device can send an email as
an alert.
•The device supports TLS authorization (GMAIL) and is password-protected.
Application
AC (Air Conditioning) failure
Changes in temperature alert you to outages of the A/C cooling unit..
Heating monitoring
Remote monitoring of the heating system, email or SMS alerts of freezing hazards.
Monitoring of services provided
Easily create reports with graphs of temperatures at one or more locations via Portal service.
You can keep an eye on the quality of the outsourced services.
Refrigerator or freezer monitoring
Sends an email when your refrigerator fails.
Logging of operating and storage conditions.
Heating optimization
Savings on heating and air conditioning costs.
Food storage
Monitors optimal storage conditions.
HACCP protocols can be created using application
software.

HW group
6
User Manual for STE2 LITE device
Connectors and wiring
•Ethernet –LAN connectivity, default configuration also for WiFi connectivity.
•Sensor Port (RJ11) –External RJ11 sensors from HW group.
-Each port is max 60m.
-One physical sensor can provide several sensor values.
-Temperature & Humidity sensor provides 2 sensor values.
•Power –5V power supply (external adapter).
Indication
•Link –A green LED signalizes connectivity to the computer network.
•Activity –A yellow flashing LED signalizes ongoing communication.
•WiFi –A blue LED signalizes connection to the WiFi AP.
Button
•Reset –serves to restore factory settings on the device.
1) Switch the device off.
2) Press and hold the button.
3) Switch the device on and press the button for another 5 seconds.
4) All the LEDs will gradually light up.
5) Restart the device. Factory settings will be restored.
Sensor Port

HW group
7
User Manual for STE2 LITE device
STE2 LITE
STE2 R2
STE2 PLUS
Ethernet
10/100Mbit
10/100Mbit
10/100Mbit
WiFi
IEEE 802.11bg
IEEE 802.11bg
IEEE 802.11bg
IPv6
-
-
YES
SNMP
v1
v1
v1 + v3
SNMP Trap
-
-
YES
DHCP
YES
YES
YES
HTTP
YES
YES
YES
HTTPS
YES
YES
YES
XML
YES
YES
YES
SMTP
YES
YES
YES
SMTP TLS
YES
YES
YES
HWg-Push (SensDesk)
YES
YES
YES
Net-GSM (SMS GW)
YES
YES
YES
Syslog
--
-
YES
Sensors
1-Wire sensor values
Max 4
Max 5
Max 15
1-Wire UNI
YES
YES
YES
DI (Digital Inputs)
-
2
2
DO (Outputs)
-
-
8 VDO
Virtual Digital Outputs
Alarms
Email destinations
2
5
5
Trap destinations
-
5
5
SMS - destinations
2
5
5
Alarm reminder
-
-
YES
Periodical status
-
-
YES
Power and dimensions
Power supply
5V / 300 mA
5V / 300 mA
5V / 300 mA
Connector
Jack
(barrel, 1,35 / 3,5 mm)
Jack (barrel, inner 1,35
mm outer 3,5 mm)
Jack (barrel, inner 1,35
mm outer 3,5 mm)
PoE
-
YES
YES
PoE Current
-
60 mA
60 mA
PoE class
-
IEEE 802.3af Class 0
IEEE 802.3af Class 0
Operating / Storage
-30°C to 60°C
0% RH to 95% RH
-30°C to 60°C
0% RH to 95% RH
-30°C to 60°C
0% RH to 95% RH
Weight
85 g
91 g
91 g
Dimensions
68x63x32 mm
98x68x33 mm
98x68x33 mm
Environment
SoHo, IT
SoHo, IT
SoHo, IT
Installation
Table
DIN, Table, Wall
DIN, Table, Wall
Protection
IP40
IP40
IP40

HW group
8
User Manual for STE2 LITE device
Recommended connection
Sensor daisy-chain connection options:

HW group
9
User Manual for STE2 LITE device
First start-up
1) Cable connection
•Connect the device to the Ethernet (direct cable to the switch, crossed to PC).
•Connect the power adapter to the power grid and to the device.
•If the Ethernet connection is OK, the LINK (yellow) light should come on a moment later.
The ACTIVITY light (green) indicate Ethernet activity.
•The LINK (yellow) flashing rapidly to indicate communication with the DHCP server.
2) The setting of the IP address - HWg-Config
The HWg-Config program for MS Windows can be downloaded at www.hw-group.com ->
Products -> Software -> HWg-Config.
Launch HWg-Config, program automatically searches for LAN connected devices.
If the device is connected later, click to Find Devices button. Local network devices will be
listed. Click on the MAC address of the device to open the dialogue window for device settings.

HW group
10
User Manual for STE2 LITE device
Set device network parameters:
•IP address / HTTP port (80 by standard)
•Your network mask
•IP address of your network gateway
•Device name (optional parameter)
Save the settings by clicking on Apply Changes.
Note: The device provides 2 options how to restore its default settings:
1) Right-click on the device’s MAC address. Click to Load default values item.
Note: Device default values can be restored from the HWg-Config program only during
first 60 settings after device powered-up.
2) Switch off the device. Press the RESET button on the device, hold it down and connect
the device power source (power adaptor). Hold the button down for another 5 seconds
until all the LEDs light up.

HW group
11
User Manual for STE2 LITE device
3) How to open the device website
1) Enter the device IP address in your web browser if you know it.
2) Use right-click on device in the HWg-Config program. Select Open in WEB Browser.
3) Click on the underlined IP address in the HWg-Config program.

HW group
12
User Manual for STE2 LITE device
WWW interface
Home tab
General Info section
•Device Name: This setting allows you to assign a unique name to the device, which can
be helpful when managing larger installations. You can configure the device name on the
General Setup tab.
•Time: Displays the current time of the device. You can set it manually on the Time tab, or
you can choose to synchronize it automatically with the Internet. If the automatic
synchronization is successful, the displayed time indicates that the device has Internet
access.
•Date: Shows the current date of the device. You can set it manually on the Time tab, or
you can synchronize it automatically with the Internet. If the automatic synchronization is
successful, the displayed date indicates that the device has Internet access.
Sensors & Digital Inputs section
•State –Current state of the input or sensor.
-Normal - Quiet state, everything is fine.
-Alarm High - The value has exceeded the upper allowable limit.
-Alarm Low - The value has dropped below the lower allowable limit.
•Name - The name of the sensor used for better identification in larger systems. The name
can be set on the Sensors page.
•Type - Sensor Type; determines what type of sensor it is (temperature/humidity/digital
input, etc.).
•Current Value - The current value including measured quantity.

HW group
13
User Manual for STE2 LITE device
General Setup tab

HW group
14
User Manual for STE2 LITE device
General part
•Device Name - The device name (default “STE2 LITE”) helps to differentiate individual
devices in the network.
•WWW Info Text - Text displayed in the footer of the device's web page.
•Temperature Unit - Allows selecting the unit to display temperature - Celsius,
Fahrenheit or Kelvin. The Safe-Range values are automatically calculated based on this
option.
•Periodic Restart - A feature that enables periodic automatic restart of the device to
improve its stability in exposed networks.
•Disable LEDs - Allows disabling certain signaling LEDs on the device, except for those on
the RJ45 connector.
•HTTP Port - The port number on which the embedded WWW server listens, which can be
changed for accessing multiple devices from an external network through a router. The
default port is 80, and setting the value to 0 disables HTTP support.
•HTTPS Port - The port number on which the embedded WWW server listens for secure
HTTPS connections, which can be changed for accessing multiple devices from an external
network through a router. The default port is 443, and setting the value to 0 disables
HTTPS support. It's essential to verify any changes with the network administrator.
Network IPv4 section
The IPv4 parameters of the RJ45 connection. WiFi parameters connection are in the WiFi tab.
•DHCP - Enables the IP address setting function of the DHCP server, if available. Enabling
or disabling DHCP depends on the needs of the user and the network administrator.
•IP Address - The IP address of the device, assigned by the network administrator.
•Network Mask - Network mask, assigned by the network administrator.
•Gateway - IP address of the default gateway, assigned by the network administrator.
•DNS Primary / DNS Secondary - IP address of the DNS server, assigned by the
network administrator.
Device Admin section
•Username / Password - The username and password used to secure access to the web
device environment.

HW group
15
User Manual for STE2 LITE device
Security tab
HTTPS Server Certificate files
Used to manage certificates needed for the HTTPS server. Allows you to upload or delete a
public key, a private key, or a certificate of the certificate authority (CA) that has issued the
public key certificate.
Generate the SSL key and certificate
Generate a private SSL key and self-signed certificate for closed networks or testing purposes.
The generated certificate is self-signed and will be displayed as untrusted.
Please add the certificate to the list of exceptions or use a certificate signed by a trusted
certification authority. Please note that the generated data will replace the SSL Certificate File
and the SSL Certificate Key File.
Generating the key can take up few minutes. Do not restart the device and do not search for
sensors. Otherwise, the key generation will be interrupted.

HW group
16
User Manual for STE2 LITE device
WiFi tab
When WiFi is off, only the enable option is shown:
All the options are available after enabling:

HW group
17
User Manual for STE2 LITE device
WiFi Info section
•WiFi modem state
-Disable –Wifi is disabled.
-Wait for power on –Waits for WiFi module when power on.
-Init –Initializing of WiFi module.
-Connecting –Connecting.
-SSID check –SSID check.
-Connected –Connected to selected WiFi network.
-Network WiFi scan –Scan of available WiFi networks.
-Wait for scan –Waits for Network WiFi scan.
•Current SSID –Current name of the network to which the device is connected. If the
parameter is missing, the device is not connected to any WiFi network.
•Current BSSID –Current identifier of the WiFi network connection point. If the
parameter is missing, the device is not connected to any WiFi network.
•Current RSSI –Relative strength of signal input. The lower the RSSI, the stronger the
signal.
•Signal Quality –Strength of WiFi signal in % with graphic indicator.
•Current Channel –WiFi channel on which the device communicates. If the parameter is
missing, the device is not connected to any WiFi network.
WiFi Setup section
•WiFi Enable –Enable or disable WiFi. By standard, the wireless interface is disabled.
Device restart follows enabling.
•SSID –Name of the WiFi network to which should be the device connected. If you do not
know your network name, use the Scan AP function at the bottom of the page.
•Password –Secured network password. If you do not know it, contact your network
administrator.
•BSSID –Identifier of the WiFi network connection point (MAC address of the connection
point). Optional data.

HW group
18
User Manual for STE2 LITE device
Network IPv4 section
WiFi network parameters. Only the wireless interface is set here. Configure RJ45 LAN
parameters on the General Setup tab.
•DHCP - Enables the IP address setting function of the DHCP server, if available. Enabling
or disabling DHCP depends on the needs of the user and the network administrator.
•IP Address - The IP address of the device, assigned by the network administrator.
•Network Mask - Network mask, assigned by the network administrator.
•Gateway - IP address of the default gateway, assigned by the network administrator.
•DNS Primary / DNS Secondary - IP address of the DNS server, assigned by the
network administrator.
Wifi Scan List section
•SSID - Name of the WiFi network found.
•BSSID - Connection point identifier (MAC address).
•Channel - The WiFi channel where the AP communicates.
•Security - The security type of WiFi communication.
•Signal - WiFi signal strength in % with graphical indicator.
Connecting to a discovered WiFi
•Click on the SSID of the discovered network to pre-fill the WiFi settings and then just fill
in the Password. The BSSID field will remain blank. Standard settings. When you change
the AP, it will reconnect itself.
•Clicking on the BSSID will pre-fill not only the network name (SSID) but also the MAC
address of the specific AP (BSSID). The device will then connect to that AP and in the
case of pooled networks will not try to reconnect.

HW group
19
User Manual for STE2 LITE device
Scan AP
Wifi debug section
•Provides useful info for debugging WiFi connection.

HW group
20
User Manual for STE2 LITE device
Sensor tab
Sensor List section*
•State - State of the DI (input) or sensor.
-Normal - Quiet state, everything is fine.
-Alarm High - The value has exceeded the upper allowable limit.
-Alarm Low - The value has fallen below the lower allowable limit.
•ID –2 bytes sensor ID (identical to ID on Poseidon2 devices).
•Type - Sensor type; indicates what type of sensor it is (temperature/humidity etc.).
•Name - The name of the sensor, used for better identification in larger systems. It can be
set on the Sensor or Digital Input tab.
•Current Value - The current value including the measured quantity.
•Safe Range - Refers to the range of acceptable (allowed) values that are considered
within normal limits. If the current value falls outside the Safe Range, an alarm is
triggered to indicate that the measurement is out of bounds and requires attention.
•Hysteresis - The parameter specifies a range of insensitivity when the measured value
crosses the limit value. It prevents triggering of multiple alarms when the value oscillates
around the limit. For more details, please refer to page 40 of the manual.
•Alarm Target - Allows you to define targets where Alarm messages (SMS + Email) will
be sent. Target destinations are set on the Alarms page. The drop-down menu allows you
to assign an existing set of targets to the sensor or create a new one.
•Alarm Trigger Delay [s] - Delays the sending of alarm start information by a defined
time.
•Sensor Serial Code - The full ID of the 1-Wire sensor.
•Delete –The button to delete a specific sensor.