--- title: Belden Horizon Data Manager FAQs slug: bhdm/belden-horizon-data-manager-faqs createdAt: 2022-07-13T15:48:27.000Z --- :::ExpandableHeading{isOpen="true"} How can I try Belden Horizon Data Manager? - You can get started with Belden Horizon Data Manager: [Getting Started](docId\:w6ZhdL1p-CEBUzkd4IFt1)  - Read about Belden Horizon Data Manager here: [Belden Horizon Data Manager User UI](docId\:Oi1AHRIqvkya3lJ8fAw7B) ::: :::ExpandableHeading{isOpen="true"} Can I use Belden Horizon Data Manager without Belden Horizon Data Operations? Belden Horizon Data Manager is the management suite for Belden Horizon Data Operations. ::: :::ExpandableHeading{isOpen="true"} Why don't I see device attributes, such as manufacturer and model number, in the device INFO tab? These attributes are sent by the devices. If it does not display: - Check the device status from the *edge Devices* pane to see if data is connected. See [Step 6: Verify Edge Device Activation in Belden Horizon Data Manager](docId\:qDSSpUsZBM8OSxKs-hGzg). - Check the device information in the edge device. See [Info](docId\:wuvAfhCptLbFNF7Se1Q11). ::: :::ExpandableHeading{isOpen="true"} What could be some reasons that my device is not connecting? - Try double checking your connection parameters. - If the parameters are correct, check your firewall settings. ::: :::ExpandableHeading{isOpen="true"} Why can I see device data in the RAW tab, but not in the EXPLORE tab? Data sent to Belden Horizon Data Manager must be in a special format, as shown in the JSON schema in the Project settings page. If Belden Horizon Data Manager cannot parse incoming messages, the messages only appear in the **Raw** tab. ::: :::ExpandableHeading{isOpen="true"} How can I remotely manage a device? Belden Horizon Data Manager supports MQTT protocol to remotely manage a device: **MQTT** Belden Horizon Data Manager supports 3 types of MQTT topics: - request - to send manage requests to a device - response - to receive responses from a device - data - to receive data from a device Request/response formats are not defined. For example: If you can program your device to reboot when it receives `{"command": "reboot"} `from the request topic, you can reboot your device remotely. If you open the MQTT tab on the Device Details form, you can see Request/Response tabs to manage MQTT devices online. To accomplish management tasks, you must program your device. The Batch Device Management feature offers operations similar to those described above, but you can define batch commands (MQTT) and schedule these commands to execute against a group of devices. ::: :::ExpandableHeading{isOpen="true"} How can I delete a Project? You can remove a project from the **Project List** or from the **Remove Project** section in the **Project Settings** > **Settings** tab. ::: :::ExpandableHeading{isOpen="true"} How can I visualize my data? Use Belden Horizon Data Operations. All data that appears in the **Explore** tab is available in Belden Horizon Data Operations as well. ::: :::ExpandableHeading{isOpen="true"} Are messages sent from Belden Horizon Data Operations to Belden Horizon Data Manager Secure? - We do security testing with every release. - We prevent security issues through REST and MQTT protocols. They only use secure transports, such as TLS and DTLS. We do not support unencrypted transports between the two products. - All security credentials established during cloud activation are securely stores on the Belden Horizon Data Operations device and they are not exposed to the end user. It is impossible to alter these credentials after activation as long as physical security of the Belden Horizon Data Operations gateway is maintained. ::: :::ExpandableHeading{isOpen="true"} What is the difference between Belden Horizon Data Manager Alerts, Events, and Incidents? - **Alert** - The Belden Horizon Data Manager Alerts feature allows a user to define notifications based on rules. Rules comprise a set of conditions that define an abnormal state of a device. For example: No data received from a device in more than two minutes, or the temperature went below 30 degrees. First, define Actions. Actions are the types of notifications, such as Slack or Webhook. Then, create a Trigger. A trigger is a combination of device tags, a set of rules, and an action. Once triggered, Belden Horizon Data Manager sends the alert notification to the defined destination. Alert notifications can be viewed on the Belden Horizon Data Operations Manager dashboard as well as from email and third-party web applications, such as Slack. The Incidents tab on the projects page lists the alerts that were generated. - **Event** - Events list the Belden Horizon Data Manager configuration activities that occurred for a project within a company. For example: Added a new project, or deployed a new device. - **Incident** - If a device reaches an abnormal state according to the rules, then Belden Horizon Data Manager will create a new incident and send notifications. The *Incidents* tab lists the alerts that were generated. When a device returns to a normal state, the open incident will be closed and Belden Horizon Data Manager will send another notification with an incident resolved message. ::: :::ExpandableHeading{isOpen="true"} How many Belden Horizon Data Operations devices can Belden Horizon Data Manager manage? As many as you want, purchased or installed on the Site. ::: :::ExpandableHeading{isOpen="true"} What is the ESXi version minimum requirement for Belden Horizon Data Manager deployment? We strongly recommend ESXi version 6.7 or higher. ::: :::ExpandableHeading{isOpen="true"} What are the technical details I can verify before raising a support ticket? Find out the following: - The version of the Belden Horizon Data Operations and the Belden Horizon Data Manager. - The version of a component if it is not working. - The type of license installed. - If the network is properly configured. - If the NTP/DNS settings are correct. - If you are using the correct PLC driver and IP address. ::: :::ExpandableHeading{isOpen="true"} How long is alert history retained within Belden Horizon Data Manager? Alert history is not deleted. It is kept as long as there is space in the database. ::: :::ExpandableHeading{isOpen="true"} What happens if the database for alert history becomes full? After the alert history database becomes full, the system stops accepting data. In upcoming releases, we will develop a more sophisticated data life cycle management. ::: :::ExpandableHeading{isOpen="true"} Do any security settings, such as active directory settings or certificate policies, get deployed when implementing a template on a Belden Horizon Data Operations device from Belden Horizon Data Manager? Not at this time. In upcoming releases, Belden Horizon Data Manager will be able to deploy LDAP/AD settings for various Belden Horizon Data Operations devices. ::: :::ExpandableHeading{isOpen="true"} Can I deploy selected flows from a template to a selected Belden Horizon Data Operations device from Belden Horizon Data Manager? Currently, a template consists of: PLC configurations (device settings and tags) and Flows. You can select a mix of both types and create as many templates as you want. These templates can then be uploaded from the Belden Horizon Data Manager Admin Console so that they are available to all the companies, or from the Belden Horizon Data Manager at a Company level so that they are available to all the Projects. You can create different groups of Belden Horizon Data Operations devices and select which template you want to deploy to a selected group of devices. In upcoming releases, we will include CC as well as a few other configurations. ::: :::ExpandableHeading{isOpen="true"} What BI tools can be connected to Belden Horizon Data Manager? - Belden Horizon Data Manager supports the MySQL protocol for ClickHouse. If the BI tool supports MySQL, it can connect to ClickHouse. Some smart BI tools may use MySQL system tables that are not present in ClickHouse, so they should be tested. - Belden Horizon Data Manager allows you to connect to the ClickHouse underlying database. See [https://clickhouse.tech/docs/en/interfaces/third-party/integrations/](https://clickhouse.tech/docs/en/interfaces/third-party/integrations/) to find the native connectors that ClickHouse uses. ::: :::ExpandableHeading{isOpen="true"} Why am I unable to activate an edge device? How do I fix this? When an activation fails, there will be an Activation Stage Message that reports the exact cause(s). Here are some potential fixes: - Ensure port 443 is opened. - Ensure 51820/UDP is open for the Belden Horizon Data Operations instance. - Ensure the Remote Access protocol is not blocked at all. - Ensure the time synchronizations setting between the Belden Horizon Data Manager and Belden Horizon Data Operations is working properly. - For Docker-run Belden Horizon Data Operations instances, check for `NETADM` capability. - For \<3.2.0 Belden Horizon Data Operations instances, ensure Remote Access modules on each host system (where the BHDO is installed) are operating properly. :::