Legal information 1. Legal information Warning concept These instructions contain information that must be observed for your personal safety and to prevent damage to property. The instructions are highlighted by a warning triangle. Depending on the hazard level, the warnings are shown in descending order as follows: 1DANGER indicates a hazard that will result in death or serious injury if appropriate...
Legal information the safety and warning instructions contained therein. Qualified personnel are able to recognize risks and avoid potential hazards when handling the described products due to their training and experience. Disposal Electronic devices must not be disposed of with household waste, but must be dis- posed of properly.
Safety information 2. Safety information General information These instructions are intended for the installer of the WLAN Thermometer descri- bed in the manual and must be read and understood before starting work. The de- vices may only be installed and commissioned by qualified personnel. Intended use 1DANGER The WLAN Thermometers from Wiesemann &...
Page 8
Safety information individual wires are sticking out of strands, that the entire strand is in the terminal and that the screws of the connection terminals are firmly tightened. Tighten the screws of unused terminals. The power supply unit used to supply the WLAN Thermometer must ensure safe isolation of the low-voltage side from the supply network in accordance with EN62368-1 and have „LPS“...
Quick commissioning 3. Quick commissioning Power supply a a b b Reset WLAN 12-24V DC Connection of the sensor PT100 4 wire Assembly The WLAN Thermometer is intended for installation in the control cabinet. For me- chanical fixing, the WLAN Thermometer should be snapped onto a 35 mm top-hat rail in accordance with DIN EN 50022.
Page 10
Quick commissioning As soon as the device is connected to the WLAN, open a web browser and establish a connection to the default IP address of the device. This is: 192.168.4.1 Set the network parameters of the desired WLAN via the configuration menu of the device.
Product introduction 4. Product introduction Hardware features Network interface: WLAN 802.11 b/g/n 2,4GHz Power supply: Screw terminal 12-24V DC Device status and error status are signaled via corresponding LEDs. Access permissions The WLAN Thermometer is configured and operated in the browser and is only pos- sible after logging in as an administrator, provided a password has been assigned.
Commissioning 5. Commissioning Once the WLAN thermometer has been properly installed and wired, the supply voltage can be switched on. The boot phase only takes a few seconds. The green LED indicates the WLAN status. Permanently on: The device is in client mode and is connected to a WLAN network.
Commissioning Access point mode In this mode, you establish a connection to the WLAN Thermometer vim access point mode with your client. Once the connection is established, you can reach the device via the IP address 192.168.4.1. Please note that no online service, such as the W&T Cloud, is available in this mode.
Commissioning In this mode, you connect the device to an existing WLAN network. Enter the SSID and password parameters in the input screen. Here you have the option of obtaining the IP parameters of the device automatically via DHCP or setting them manually. After clicking on the save button, the device is ready for use.
Page 16
Commissioning Identify the WLAN Thermometer in the inventory list using its MAC address. Select the WLAN Thermometer and press the IP address button: The static option allows the assignment of fixed IP parameters while simultaneous- ly deactivating the DHCP protocol. Enter the desired values for IP address, subnet mask and gateway address in the corresponding input fields.
Page 17
Commissioning Networks with DHCP If a DHCP server is active in the network in which the WLAN Thermometer is connectedDHCP server is active, the device should be automatically assigned an IP address. To be able to address the WLAN Thermometer specifically, you should con- figure a reservation in the DHCP server so that the device can always be reached at the same address.
Basic settings 6. Basic settings After entering the IP address in the web browser, you will be taken to the start page of the device.
Page 19
Basic settings Click on the menu symbol at the top left to access the main menu of the device. Sensor: Configure limit values for an automatic message here. Password: Protect the device configuration with a password WLAN: Make the network settings for the device here Browser access: Select the browser language and, if desired, the encrypted connection via HTTPS.
Basic settings Sensor Enter the limit values here at which a message is to be sent via MQTT and push message. If you only want to monitor one limit, e.g. a pure temperature overrun, only enter the upper limit value. For a temperature undercut, enter the lower limit accor- dingly.
Basic settings Browser access Select the browser language. You can switch between German and English. Activate encrypted browser access via HTTPS if you wish.
Basic settings MQTT If you want to send messages via MQTT, configure the settings for the MQTT bro- ker here. To do this, you need the IP address and the port number under which your...
Page 25
Basic settings MQTT broker can be reached. If you want an encrypted connection, activate the cor- responding switch. The WLAN Thermometer sends the measured value to the MQTT broker each time the connection is established or terminated and when the value changes. The topic used has the following format: <device name>/get/temperature/1 The payload is specified as a point-separated measured value.
Basic settings W&T Cloud With the cloud service, W&T offers a comprehensive solution that enables data to be backed up in online storage. Measurement data is sent directly from the measuring point to the cloud and is the- refore available online. A user account is required to use the W&T Cloud.
Page 27
Basic settings You will find an activation code for cloud use that is suitable for your device in the device packaging. Enter the MAC address of the device and the activation code in your user account at http://wutcloud.de to connect the device to your cloud account. The device will now send its data to the cloud cyclically.
Basic settings Push The device can send push messages via the third-party provider ntfy.sh, which can be received on a smartphone using the corresponding app, for example. You can find more information about downloading the apps at https://ntfy.sh/ You must select a „Topic“ for the notification so that the data sent can be assigned to your WLAN Thermometer:...
Page 29
Basic settings Configure message texts for the various events. In addition to the continuous text, you have the option of inserting the current mea- sured value in the form of a tag. This is given in angle brackets and can be inserted at any point in the text.
Single value query 7. API It is possible to query the current measured values via a socket connection. This function is used to obtain the individual data without the web interface. Open a connection to the IP address of the WLAN Thermometer and port 42280 with any TCP client.
Page 31
Single value query The device then responds with a text string containing the current temperature with unit. E.g. 24,5°C You can also query the individual measured value via HTTP. Send the request to the device: http://<ip-address>/single1 You receive the measured value in an HTTP response. The device responds with the current temperature and the unit.
Maintenance 8. Maintenance Restart the device or reset it to the factory settings. After restoring the factory set- tings, you can configure the device again as described in the Commissioning chap- ter.
Security information 9. Security information The following sections contain relevant information and recommendations for com- missioning, configuration, operation and maintenance of the WLAN Thermometer from an IT security perspective. Function and typical use The WLAN Thermometers from Wiesemann & Theis are temperature monitoring devices with network access via WLAN.
Security information - Decommissioning of the device (removal of the power supply ...) and loss of all connections to communication partners. Commissioning The commissioning of the WLAN Thermometer is divided into the WLAN configura- tion and the subsequent assignment of the IP address (DHCP, WuTility), as well as the subsequent further configuration via web-based management.
Security information Operation and configuration WLAN Thermometers support the incoming and outgoing services listed in the follo- wing table. Incoming: Port number Application Password? Configurable/ Can be switched off? Configuration 80 (TCP) Web-based ma- only nagement Single value tem- perature query via HTTP 42280 (TCP) Single value tem-...
Security information Outgoing: Port number Application Password? Configurable/ Can be switched off? 53 (UDP) DNS client (activation on demand) 67 (UDP) DHCP client (deactivation through static IP assignment) 1883 (TCP) MQTT client 443 (TCP) Cloud transmis- no/yes sion Push transmis- sion 68 (UDP) WuTility IP assig-...
Maintenance 10. Service, maintenance and decommissioning Despite high quality standards, electronics can fail at any time, e.g. due to external events. Depending on the availability requirements of the respective application, we recommend taking suitable precautions. - Provision of a replacement device if necessary - Documentation of the procedure for device replacement When decommissioning, the device should be reset to the factory settings to protect all confidential information stored in the WLAN Thermometer (IP ranges, external...
Need help?
Do you have a question about the 97701 and is the answer not in the manual?
Questions and answers